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Title: The River Motor Boat Boys on the Colorado
       The Clue in the Rocks

Author: Harry Gordon

Release Date: October 4, 2015 [EBook #50132]

Language: English

Character set encoding: UTF-8

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[Illustration: Alex pointed to Clay and Don, crawling down the opposite
wall like flies.]




  The River Motor Boat Boys on the Colorado

  OR

  The Clue in the Rocks

  By HARRY GORDON

  Author of
  “The River Motor Boat Boys on the Mississippi,”
  “The River Motor Boat Boys on the St. Lawrence,”
  “The River Motor Boat Boys on the Amazon,”
  “The River Motor Boat Boys on the Columbia,’
  “The River Motor Boat Boys on the Ohio.”

  A. L. Burt Company
  New York




  Copyright, 1913
  By A. L. Burt Company

  THE SIX RIVER MOTOR BOYS ON THE COLORADO




  TABLE OF CONTENTS

  I. MYSTERIOUS DISAPPEARANCES
  II. TEN THOUSAND DOLLARS REWARD
  III. CAPTAIN JOE’S MESSAGE
  IV. “THE PHANTOM BOARDER”
  V. A SURPRISE FOR THE GREASERS
  VI. TEDDY BEAR MAKES A HIT
  VII. THAT HAUNTED STERN DECK!
  VIII. DEPUTY KING GETS A BATH
  IX. ANOTHER GUEST FROM THE RIVER
  X. THE OLD HOUSE BY THE RIVER
  XI. ALEX GETS HIS RECEIPT
  XII. ANOTHER GREAT DISAPPOINTMENT
  XIII. ALEX PLANS A NIGHT ADVENTURE
  XIV. A VISIT FROM RIVER PIRATES
  XV. TEDDY MEETS A RELATIVE
  XVI. CONCERNING A HEADLESS GHOST
  XVII. THE SUNBURST ON THE WALL
  XVIII. CASE AND ALEX UNDER ARREST
  XIX. TWO GUESTS FROM CHICAGO
  XX. A JOURNEY IN THE DARK
  XXI. THE CLUE IN THE ROCKS
  XXII. THE END OF A LONG JOURNEY




CHAPTER I.—MYSTERIOUS DISAPPEARANCES.


The motor boat _Rambler_ lay pulling at her anchor-chain in the muddy
waters of the Gulf of California. To the North opened the wide, shallow
mouth of the Colorado river, with its many shifting currents and
treacherous sandbars.

Eastward stretched a Mexican desert, where flourished cacti and forms of
animal life unknown to other parts of the world. Beyond this waste of
sand, which had, in times long gone by, formed the bed of a lake, rose
the peaks and ridges of the Sierra del Pinacates mountains.

To the South the Montague islands shut out the body of the Gulf, and
Westward a patch of desert led out to a mountain range. There are two
volcanic elevations running down the peninsula, and beyond them lies the
tumbling Pacific ocean, a hundred miles away.

The sun was lifting out of the desert to the East, rising round and red
and hot, like the bottom of a great brass kettle, and the chill of the
dark hours was changing to the stifling, long-scorching heat which is a
thing of the desert the world over.

Those who have followed the adventures of the _Rambler_ and her crew,
will remember her last on the Columbia. After a journey through the wild
canyons and forest-lined reaches of the great river of the Northwest
Territories, the motor boat had been shipped to Guaymas, where she had
taken to the water again in the Gulf of California.

The _Rambler_ carried a crew of three this morning, Clayton Emmett,
Cornelius Witters and Alexander Smith wick, boys of seventeen, who had
explored the Amazon as well as the Columbia in the staunch little boat.
There had been others on the previous trips, but now only these three
were ready for the voyage up the wonderful stream which finds its waters
in the frozen snows of the Rocky Mountains and plays hide-and-seek with
them thousands of feet below the lips of the desert, in the most
mysterious and wildly beautiful canyons known to the world.

Others might join them at up-river points, but the lads were content to
make the journey just as they were. Now, as the sun rose higher and the
air above the sands began to shimmer in the heat, they tumbled out of
their bunks in the little cabin of the motor boat and, after
invigorating baths in the Gulf, began preparations for breakfast.

“If we wait much longer,” Alex suggested, as he busied himself in making
coffee, “we won’t want anything for breakfast but snowballs, it will be
so hot, and we’re not likely to get them in this oven of a land. Who’s
going to fry the cakes this morning? Oh, you would, would you!”

This last sentence was addressed to a grizzly bear cub which shambled
into the cabin and placed two paws and a soft muzzle of a mouth on the
table where the boy stood. This was “Teddy,” the cub Alex had captured
during the trip down the Columbia river.

“I know what you want, Teddy Bear!” the boy added, as the cub winked a
small eye at him. “You want to wait until I get the sugar out, then you
want to empty one bowl into one bear! Now, you move on!”

The boy addressed the cub just as he would have spoken to one of his
chums, and the bear appeared to understand what was said to him, for he
grabbed angrily at an egg which Alex had brought to “settle” the coffee
and made off with it, walking upright to the door, with the broken yolk
marking his muzzle, paws and breast with cabalistic inscriptions in
yellow.

Once on deck the cub was promptly chased over the rail into the Gulf,
where he wallowed clumsily, with three boys laughing at his antics and
penitent looks. When permitted to come, dripping and sullen, on board he
sulked off to a corner and scolded every one who approached until
Captain Joe sat down in front of him and grinned sarcastically at his
plastered fur and stuck-up eyes.

Captain Joe was a white bulldog the boys had acquired on the Amazon
trip. The bear and the dog were great chums. Captain Joe now sat making
wrinkled faces at the disconsolate cub.

“Eat him up, Captain Joe!” Cornelius Witters, known to his friends as
“Case,” shouted. “He stole an egg!”

The dog cocked one short ear and looked reproachfully at the cub.

“The price of that egg would have bought you a bone, Captain Joe,”
Clayton Emmett, better known as “Clay,” put in. “Take a bit out of him,
just to teach him better manners!”

Captain Joe winked his red eyes at Teddy and walked away in a dignified
manner, as if not relishing being made the executioner of the crew! The
lads laughed at the animal’s attitude of offended innocence and went on
with their preparations for breakfast.

The most of the cooking was done on the top of a coal stove, but the
coffee was bubbling on an electric coil which stood on a table at the
back of the cabin. After a dozen pancakes had been cooked Alex placed
them close to the electric coil to keep warm, though, as he said, “The
air was fit to keep them red hot anywhere.”

There was a small, square window over the electric stove, at the back of
the cabin, a window which opened on about a yard’s width of deck at the
stern of the boat. This small space concealed gasoline tanks, and was
not in sight from either the deck or the cabin of the motor boat.

Indeed, it was rarely visited, except by Captain Joe and Teddy, who
often took long siestas there when the bulk of the cabin cast shadows on
the bare planks.

Case cooked heap after heap of brown buckwheat cakes and passed them on
to Alex to be placed in the warming closet, as the boys called the ledge
of the electric stove, “until they had enough to get a good eating start
on,” as Witters observed. Finally he ceased his efforts and glanced at
the place where the tempting heap of cakes had been placed.

There was not even a crumb of a pancake in sight! Alex was busy getting
out plates and cups, his back to the electric stove and the window. The
coffee was bubbling over the cherry-red coils.

Case advanced to the stove and looked over it, under it, around it, and
even under the table it stood on. There wasn’t a pancake, or a part of
pancake, anywhere! He rushed up to Alex and shook him by the arm.

“You never bolted ’em all?” he demanded. “Not every last one of them,
did you? Two dozen of 'em! You never did!”

Alex dropped a plate on the table and looked quizzically at Case.

“Sure!” he declared. “Sure I did! What of it?”

“Two dozen cakes at one gobble!” laughed Case. “Now, you can get ready
to cook more. Land of Promise! Twenty-four—count 'em—twenty-four at one
mouthful! If I had your capacity I’d—”

Then Alex began to sense the situation. He glanced from Case to the
place where the cakes had just stood in a rich, brown column. Then his
eyes roved about until they encountered Captain Joe and Teddy consoling
each other on the prow of the boat. They certainly couldn’t have done
it!

“Did you get ’em?” he asked, hopelessly, of Case? “Did you cop 'em out
to prevent our getting indigestion?”

“You ate them yourself!” Case returned, half angrily.

Alex grinned and placed his hands at his lean waist.

“I don’t seem to find ’em anywhere,” he laughed. “Not on me!”

“Then where did they go?” demanded Case. “Who did get them?”

Alex walked to the rear window and opened it. The sash swung inward on
hinges, and was not locked, but it rarely was locked. Then he thrust his
head out of the opening and looked down on the small deck. There was no
one there.

“The old Nick is in the place!” Case cried, presently. “I can smell
sulphur in the air! Suppose we get out of this?” he added, as Clay came
into the cabin. “This ain’t no place for a Christian gentleman!”

Clay’s eyes sparkled when the story was told to him.

“It is a joke!” he laughed. “You’ll have to get some fairy tale stronger
than that to account for a lost breakfast! Come on, now, who got the
cakes? Own up, and I’ll fry more. Who is the villain?”

“You may search me,” Alex answered, dropping into slang. “Case handed
them to me and I put them on the edge of the electric coil. They’ve gone
up in the air, if anybody should ask you! Right up in the air!”

“Who opened the window?” asked Clay, still unbelieving.

“I did,” Alex answered. “There’s no one out there.”

“No one could get on board without being challenged by Captain Joe,”
Case suggested. “Even Teddy would make a row and ask questions of any
stranger! It is uncanny! I’m beginning to think the _Rambler_ is
haunted. Or it may be the locality! Suppose we pull anchor and go on
up?”

“Just my idea!” Alex agreed. “When we get a few miles up the Colorado,
I’ll cook bacon and eggs for breakfast, and we can have some of the
honey Teddy didn’t get his thieving paws on.”

So the boys brought up the anchor, started the motors, and in ten
minutes were pushing up the Colorado. The famous river is wide and
shallow at its junction with the Gulf of California, and the constantly
changing currents heap sandbars to-day where there was deep water
yesterday, so the lads proceeded at less than half speed.

At the end of an hour they were only fifteen miles from the anchorage of
the night before. The river was narrowing. To the east a low line of
sand hills came down to the water, to the west the foothills of the
Sierra de los Cucapas range dropped close to the channel. Something less
than one hundred miles to the north was Yuma, where the Southern Pacific
Railroad crosses the stream.

The lads cast anchor near the west shore, and Alex brought out the bacon
and eggs, while Case proceeded to brew fresh coffee. By this time the
sun was shining blisteringly on the deck of the motor boat, and all
three lads were in the cabin, with all the small windows open to the
slight breeze.

“Now,” Clay suggested, as the three sat at the little table in the
center of the cabin, two facing each other and one looking out of the
open doorway which commanded a view of the deck, “suppose we have the
honey we’re going to consume to keep Teddy from acquiring it? Where is
it?”

“I put it back of the electric stove, there by the window,” Alex
replied. “I’ll get it in a minute.”

Three faces were turned toward the rear window, three pair of eyes
expressed amazement, incredulity, three boys sprang to their feet and
moved toward the electric stove. The can of honey was not there!

“I saw it not more than a minute ago!” insisted Case.

“So did I,” Alex agreed. “Not half a minute ago!”

Then three faces turned toward the deck. Teddy and Captain Joe lay on
the prow, sweltering in the heat, their ears cocked as if set to catch
some sound as yet only faintly heard. They didn’t have the honey!

“I reckon,” Alex observed, “that we’ve got a phantom boarder!”

“He’s got his nerve, whoever he is!” Case said, with a scowl, for Case
was inordinately fond of honey, and had counted much on the can which
had so strangely disappeared. “He’s clever, too!”

Captain Joe now arose from the deck at the prow and walked to the
railing on the port side. He stood there an instant, as if undecided
what to do next, then lifted his paws to the top of the deck guard and
looked over into the river.

“I guess the dog’s got him—this phantom boarder!” Clay laughed.

But Captain Joe went back to the cub in a moment and lay down again. If
there was any stranger around the boat, the dog certainly was not aware
of the fact, the boys concluded. Yet some one had taken the cakes and
the honey! Who could it have been, they asked each other.

“It wouldn’t be right for us to start on a river trip unaccompanied by a
mystery,” laughed Clay. “We had a mystery with us while we were on the
Amazon, and the Columbia panned out pretty well in that particular, too,
so I’m not much astonished by the presence of a mysterious boarder now.
He ought not to take the best of everything, though,” he added, with a
grin at Case, who was still inconsolable because of the loss of the
honey.

“Say,” Alex exclaimed, presently. “This is no joke! There’s something
going on here that we ought to know more about. The pancakes and honey
never walked off without legs! Some fierce creature may have come up out
of the river and grabbed them, but I don’t believe it.”

“Do you think there’s some one hidden on the boat?” asked Case. “If
there is, where is he? No place to hide here, that I know of.”

“I don’t know anything about that,” Alex returned. “No one from the
shore took the two articles of food, for they were taken at points
fifteen miles apart—unless we have been visited by two thieves using the
same methods, which I do not believe.

“I’m going to find out whether human hands took the grub, or whether
some monster came up out of the river and assessed us for a square meal.
You boys stay here and watch in front, and I’ll climb on the little deck
over the gasoline tanks and see what’s going on there. If anything I
can’t handle shows up, I’ll call for help!”

Clay and Case sat for a long time with their eyes fixed on the open deck
and the up-river landscape. They heard Alex scramble over the low cabin
roof and take a position on the narrow space over the tanks. Then all
was still save the rush of the water. Captain Joe arose again, sniffed
at the port rail, peered over into the water, and gave a low growl.

“He sees something!” Clay cried, excitedly.

Case hastened to the rear window and looked out, as if to ask Alex a
question. At first he only looked out. Then he leaned out. Then he
dashed out of the cabin and called to Clay, a note of anxiety in his
tone.

When Clay reached the deck he saw what had excited his chum. Alex was
not on the narrow deck, not on the cabin roof, nowhere on the boat! The
river ran away smooth and clear, sparkling in the light with no craft in
sight. The boy had disappeared as utterly as if he had been dissolved in
the hot air!




CHAPTER II.—TEN THOUSAND DOLLARS REWARD.


When it became certain that Alex was not on board the _Rambler_, Clay
and Case hustled the small rowboat which lay on the cabin roof into the
river, threw in the oars, and cast off the rope.

If Alex was not on the boat, they reasoned, then he must have fallen
into the water! It had been at least ten minutes since he had left them
to visit the aft deck, and one might float a long way down stream in
that time! The wonder was that he had not cried out when he fell!

Case rowed with all his strength, doubled by the excitement of the time,
and Clay sat in the prow watching the river ahead. Now he thought he saw
a head bobbing on the waves; now he called out that he had caught sight
of the boy clinging to the shore; now he shuddered at sight of a
clogging mass in the bottom of the stream.

They called out at the top of their lungs as the rowboat went swiftly
down with the current, but there was no answering cry. Only when the
bulk of the _Rambler_ seemed indistinct and far away through the
shimmering sunlight did they turn the prow up stream. Clay was the first
to speak after that.

“I don’t believe he ever fell into the river!” he said. “Captain Joe
would have heard the splash, even if we did not, and would surely have
jumped in after the kid. Besides, Alex would have let out a yell if he
had tumbled in, and we should have heard that. He never fell into the
river, I tell you!”

“Then where did he go?” demanded Case. “I hope yon haven’t any idea that
he went up in the air! Or that he’s hiding to bother us?”

This last sentence expressed a new hope. The boy might be hiding in some
odd corner of the boat! They resolved to find out about that as soon as
they got aboard again. If he was hiding, well!

They did not carry out the thought, for they were now near enough to the
_Rambler_ to see that she was slowly, jerkily moving toward the west
shore.

“Did you pull up the anchor?” Clay demanded of Case.

“I should say not,” was the indignant reply. “What for should I do that,
I should like to know? Sure you fastened the chain right?”

“Of course! The chain was all right when we left there.”

“Then why should she be moving toward the shore? She’s being towed, or
I’m not an inch high! What do you know about that?”

The _Rambler_ was indeed moving toward the west bank of the river! The
motors were not in action, and yet she was moving, slowly yet steadily,
to the west! In a moment, as they rowed nearer, they saw that she was
drifting down toward them, but was, at the same time, being drawn in
toward the bank. There was no one in sight on the deck or in the open
cabin!

“This must be a fairy land!” Case grumbled. “There’s something uncanny
in the very air! How do we know that we are in the Colorado river,
anyway? We haven’t seen a ship, or a launch, or a rowboat, except our
own, to-day! Things disappear from the cabin, Alex goes up in the air,
and now the _Rambler_ wiggles off without any motive power showing!”

“Look at Captain Joe!” shouted Clay. “Just look at the fool dog?”

Case continued to pull at the oars, anxious to gain the _Rambler_.

“What is he doing?” he asked, not turning around to see.

“He’s barking and snapping at something that doesn’t exist!” Clay
replied. “He is fighting with the air—and getting the worst of it!”

“Keep your head, chum!” Case grinned. “Keep on trying to think! The
worst is yet to come!”

“Turn around and look, if you don’t believe me,” Clay shouted.

Case turned about on his seat, letting the oars lie idle in the waves
for a moment, and fixed his eyes on the deck of the _Rambler_, now not
more than a hundred yards away. Captain Joe was barking like mad on the
deck, advancing to the west rail, as if pursuing some one, and then
retreating, as if being beaten back!

While the boys looked, he crossed the deck half a dozen times, snapping
and snarling at something not in view from the small boat. Whenever he
retreated he seemed to be cringing as from a blow! The boys looked on in
wonder and fright. The dog was fighting the air!

“Not a thing in sight!” Case commented. “A boat sliding along with no
one near her, and a dog barking at nothing at all. I give it up!”

“Let me row,” Clay suggested. “You must be getting tired.”

Case dropped off the seat backward and Clay took up the oars.

“Tell me what you see,” asked the latter, after rowing a moment.

“The dog has gone back to his corner,” Case reported, “and Teddy is
doing the investigating. The _Rambler_ is still jerking in shore, and
there’s not a soul in sight! Ever hear of invisible men and things?
Well, that’s just what we’re up against!”

“Alex is invisible, all right!” grunted Clay. “See him yet?”

Case did not answer. Instead he dropped into the seat beside Clay,
almost overturning the frail boat before he succeeded in getting into
action with one of the oars. It was a minute before he spoke in
explanation of his conduct.

“Pull!” he cried. “Pull for your life! There’s some one at the prow of
the boat, pushing her toward shore, and there’s men behind the sand
dunes on the west bank, waiting for her to land! We’re up against a nest
of pirates, I take it! Pull! We must get to the _Rambler_ before it
touches the bank, for the fellows there will swarm over her then.”

And the lads did pull, with all their might. The current of the Colorado
is not strong there, and so they made good headway. When they came
within fifty yards of the _Rambler_, she was within that distance of the
shore. The men who had been hiding behind the hills a moment before now
came out and called sharply to some one on or about the _Rambler_ to
make haste and bring her in. There was no verbal answer, but the boat
moved faster toward the shore.

Dripping with perspiration, panting in the hot air, the boys put their
strength to the oars and finally sprang over the railing just as two of
the men entered the water to swim out. They did not draw back when they
saw the boys aboard, but swam rapidly on.

“The motors!” shouted Clay. “Get them in motion!”

Case hastened to comply, and Clay dashed into the cabin and returned
with a couple of automatic revolvers. Without speaking he fired a shot
over the head of the nearest swimmer.

“Missed him!” cried Case. “Let me try one!”

“Get under motion!” insisted Clay. “When you get under way, drop down
stream! We’ve got to find Alex, dead or alive!”

A rowboat now shot out from the shore, manned by two men. First the
swimmers were picked up, and then the boat was headed for the _Rambler_.

“Keep off!” Clay called out. “I’ll shoot if you come nearer.”

“In the name of the law!” called one of the men in the boat.

“Never mind the law!” Clay answered. “If you don’t want to get bored
through with a forty-five, keep away from the boat.”

“I’ve got to come aboard!” was the answer to this.

“And I’ve got to keep you from doing so!” Clay answered. “We are not
interfering with you, or with the laws of Mexico, and we have no notion
of spending a few months in a Mexican jail while you people dispose of
our boat and our supplies. Keep off! I’ll shoot if you come a foot
closer. What have you done with the boy you took off the _Rambler_?”

Case looked up from the motors with a hopeful smile. Perhaps that was
the solution of the puzzle! These men might have in some way stolen the
food and taken Alex away. This thought was more cheerful than the one
that the boy had fallen into the river and been drowned.

The roar of the motors drowned the answer, if, indeed, any was made. As
the propellers swung into motion two figures separated themselves from
the prow of the boat, where they had been clinging, out of sight, and
struck out toward shore. Clay called to them to stop, but they paid no
attention to the command. Directly they were taken into the rowboat.
Clay smiled as he took in the situation.

“It is easy now,” he shouted. “Those men were evidently diving and
shifting the anchor shoreward, being unable to break the chain, and
being afraid to go on board. Guess they know nothing about motors, or
they’d have had the _Rambler_ miles up stream long before this!”

The _Rambler_ now struck out for the Gulf, traveling at a swift pace. If
Alex had indeed fallen into the stream, they might yet be able to save
his life, as he was a strong swimmer and resourceful. The men in the
rowboat followed on, losing ground, but persistent. At last Clay halted
the boat and called back to them:

“What do you people want of us?”

“Just a little talk,” was the reply, shouted over the water.

“You tried to steal the boat!” Case shouted back. “You’re thieves!”

“Not thieves! After thieves!” came the sharp reply.

“Are you officers?” demanded Clay.

“Officers! American officers!” was the unexpected reply.

“They’re faking!” Case cut in. “You saw how they tried to steal the
_Rambler_! I’ve a notion to take a shot at them.”

Clay swung the _Rambler_ in a circle and came close to the rowboat, an
automatic ready for use. Case looked on with disapproval showing in his
face.

“Now, what do you want?” Clay demanded, as one of the men arose in the
boat. “I’m not running away from officers, if I know it, nor am I
holding any extended talks with boat thieves. What do you want?”

“I want to come aboard,” was the stern reply.

The man who spoke was tall, slender, black of hair and eyes, and with a
grace and freedom of movement which told of life in the open air. Clay
rather liked his looks, and so consented for him to board the _Rambler_.
Case stood by with a revolver to see that no rush was made as the other
vaulted easily over the railing after scrambling lightly up the side of
the motor boat. But there was no need of this, for the others sat
stolidly at the oars, even backing off as the prow bumped the
_Rambler_’s side.

The man who had boarded the _Rambler_ stood for a moment with his hands
outstretched, to show that his intentions were not hostile, and then
gave a keen look about. It seemed to the boys that he took in every
minute detail of the craft, from the bristling dog at the prow to the
electric coil at the back of the cabin.

“I’m Joe King,” he finally said. “Joe King, of Arizona. Phoenix,
Arizona, to be exact. I’m a deputy sheriff. Where’s the sawed-off kid
who came aboard your boat just after dark last night?”

“No one came aboard last night,” answered Clay, half angrily.

“Short, light weight, freckled, red-headed, quick in his talk,” the
deputy described. “Where is he? No foolishness, now. I want him.”

“You may have him if you can find him,” grinned Case. “We don’t know any
such boy. If you’re lucky finding boys,” Case continued, “I wish you’d
find Alex Smithwick! He evaporated half an hour ago.”

Joe King, of Phoenix, Arizona, looked at the two boys doubtfully. He
seemed to think they were joking with him. Clay saw that he was not an
enemy, and briefly told the story of Alex’s disappearance, also of the
vanishing of the honey and cakes. King looked about the boat again.

“Isn’t he hidden somewhere?” he asked, with a sweep of the arm.

“There is no place he could hide,” Case answered. “You were on the shore
with your men,” he resumed, “did you see any one leaving the boat?”

“We caught a view of the river only a few moments ago,” was the
discouraging reply. “If he has been gone half an hour he might have gone
away with a brass band without our knowing it. But here’s a bigger
puzzle,” King continued, “and that is where did this Don Durand go to?
He sure came on board your boat last night at dusk, while you lay
farther down. If you find him, you’ll find the pancakes!”

“We never saw him!” Clay exclaimed. “He might have taken the food, but
he couldn’t have taken Alex. What do you want of him, anyway?”

“Why,” was the unexpected reply, “this Don Durand stole a matter of
fifty thousand dollars at Chicago. He is a much-wanted boy just at
present. Ten thousand dollars reward, you know!”

“How did a boy manage to get hold of so much money?” asked Clay, his
eyes large with astonishment.

“He was a bank errand boy,” answered King, “and walked off with a
handbag a customer of the concern, one Josiah Trumbull—entrusted to his
care. He has been chased all through the west, but has never been
taken.”

“And he came on board the _Rambler_ at dusk last night?” asked Case.

“So my men say. They were watching your boat at that time, thinking it
might be the home of the thief. I have thoughts running in that
direction right this minute! So you’d better give an account of
yourself.”

Clay, seeing that the deputy was sincere and friendly, told the story of
past and prospective trips. King listened with amused eyes.

“All right!” he said. “I’ve heard of you boys! You caught a robber up
the Columbia and got a rich reward! Hope you’ll get another one right
here. But this Don Durand is a clever chap, though only the size of a
pint cup! He’s so small that he may be hiding here right now.”

“I’m glad he got something to eat!” Case exclaimed. “I’ll bet he was
hungry! You don’t think he coaxed Alex off, do you?”

“Did he have an airship or a diving bell to take him off in?” laughed
King. “He has the price of both, I take it, for the papers say he is
carrying fifty thousand in gold notes around with him.”

“Alex might have found him out on the aft deck and chased him off, and
then followed him,” Clay suggested. “Alex is a pretty good swimmer,” he
added. “He wins medals in under-water endurance tests!”

“Now you’re beginning to think right!” King commented. “The boys may be
on shore. If they are, my men will get them. And I reckon they’re
putting up a fight right now,” he added. “Hear the shots?”

Puffs of smoke lifted over the hills, and then a rattling volley came
from the mountain spur not far to the west.




CHAPTER III.—CAPTAIN JOE’S MESSAGE.


Deputy King stepped over to the deck rail and looked down at the rowboat
in which he had left the shore. It held five men, all dusky, uncouth
looking fellows, with greasy hair and black, suspicious eyes. One of the
men had left the shore with the deputy, two had been picked up in the
river on the way out, and two more had been taken in when the rowboat
came closer to the _Rambler_.

These last two were the ones who had been working the motor boat toward
the shore by diving and lifting the anchor and putting it over. As the
craft always swung over to the new anchorage, she had gained the shore
by just the distance the anchor had been moved.

It was known afterward that the men had been sent out to board the motor
boat and bring her in, but that they feared armed opposition from
concealed occupants, and so resorted to the slower but safer, if
laborious, method described. When King looked down upon the boat all
five occupants were actively engaged in getting under way, four handling
oars and the fifth at the helm. They were already a couple of yards from
the motor boat.

“Here!” cried King. “Come back with that boat! What are you doing? That
firing doesn’t mean anything to you! Come back!”

The five men laughed insolently, and one of them made significant and
insulting gestures with a thumb at his nose! The boat shot swiftly
toward the shore, leaving King fuming on the deck of the _Rambler_.

“Nothing stays put in the vicinity of the _Rambler_!” laughed Clay. “I
reckon those are Mexicans, and that they are frightened at the firing.”

“They are Mexicans, sure enough!” King replied. “But they are not
running away from the shooting. They are going to it!”

“Not going to fight for the fun of it?” asked Case.

“They are deserting me and going back to their friends,” King said.
“They now hope to capture the boy without my help, and so get all of the
reward, as well as running off with the good money I paid them to assist
me! I presume they think the men over in the mountain spur have found
the boy and are shooting at him. Why, he’s so small they’d have to use a
telescope to see him at that distance! Anyway, I’m done for, with this
desertion, and may as well take passage with you to Yuma.”

“You’re welcome to go with us,” Clay answered, “but we’re not going on
until we find Alex. And if he gets tangled up with the Greasers on shore
we’re going after him. We won’t go on without him!”

“Of course not,” agreed the deputy. “Well, I’ll remain here as long as
you do. I may still stand a chance of getting that reward. Suppose you
put more pancakes and honey on the table back of the electric stove!” he
added with a sly wink. “He may come on board right away, then!”

“Pancakes will also bring Alex on board,” laughed Clay. “He’s got the
appetite when it comes to pancakes and honey! Never saw a kid eat so
many cakes as Alex can stow away! He’s almost as empty as Teddy Bear.”

“That the cub yonder?” asked King, pointing to the prow, where Teddy and
Captain Joe lay asleep in the sunshine, apparently beyond all the cares
and worries of a wicked world. “Clever dog, that!”

Captain Joe, as if conscious that he was under observation, arose,
stretched himself, and walked over to the rail, where he stood sniffing
at the air. Then, with his nose pointing straight toward the shore, he
uttered a series of excited growls.

“He knows that Alex is there,” Case cried. “Go and get him, Captain
Joe!” he added, and the next instant the dog was in the water.

“You’ve done a nice thing now!” Clay exclaimed, gazing angrily at Case.
“The dog will be shot before he gets within a rod of the shore.”

“I never thought of that!” Case replied, regretfully.

The boys tried to call the dog back to the boat, but he swam on, paying
no attention whatever to their threats and promises! Clay turned to the
rail where the little rowboat had been tied, thinking to follow him in
that, but it was gone! Before setting out for the shore, the Mexicans
who had deserted King had cut it loose, and it could now be seen a long
distance down the river, bobbing about on the twisting currents.

“I’m going after him anyway!” Clay shouted, rushing to the silent
motors.

It was Deputy King who checked his ill-advised determination.

“You can’t get anywhere near the shore with the motor boat,” he said.
“It is so shallow a few yards from here that the rowboat just barely
floats. Will the dog go straight to Alex as you call him?”

“He will if he is not interfered with,” answered Clay, moodily.

“Then we’ll watch the dog,” King went on. “Do you know, kids, that I
have a hunch that this Don Durand, the thief, is with Alex? I believe
they left the _Rambler_ together. I don’t know why, or when, or how they
first came together, but that’s the hunch, and I can’t get it out of my
mind.”

The Mexicans who had deserted the deputy were now landing on a low,
sandy stretch of beach, back of which ran a natural levee of sand,
perhaps six feet in height. Beyond that, and only a few hundred paces
from the water’s edge, a spur of the foothills ran out to the east.

The Mexicans saw the dog swimming toward them and deployed on the beach
to capture or kill him. This was, perhaps, the very best move they could
have made in the interest of the boys, for Captain Joe sensed danger and
turned south, swimming swiftly down with the current.

The Mexicans bred a dozen shots at him and then turned their attention
to a commotion in progress between the sand levee and the mountain spur.
The men who had fired from the foothills were advancing across the
level, and the men who had been left on shore by King were lined up to
meet them. Those on the _Rambler_ could not see what was going on, but,
presently a crowd of Mexicans came out on the beach, as if to keep watch
of the _Rambler_.

“I’d like to know what the mischief is going on there,” exclaimed Case,
as Captain Joe, already far down stream, crept out of the water and
trotted out of sight, after looking back over his shoulder to see that
no guns were pointed at him.

“I think I can tell you what’s going on,” King suggested. “The men I
left there have come to terms with the native Indians, who are always
ready for a fight or a race! It looks bad for us!”

“I don’t understand,” Clay ventured. They have nothing against us.”

“Yes they have,” King went on. “You have a fine motor boat, and the
Mexican Indian always has something against a fellow who has something
he wants himself. What you ought to do now is to run upstream at full
speed, so as to head off any canoe blockade which may be forming.”

“And leave Alex here?” demanded Case. “I should say not!”

“Then drop down to where the dog left the water,” advised King. “You
see,” he explained, “I’m still believing that Don Durand is with Alex,
and I’m taking chances on the dog finding the boy.”

“He will if Alex is there,” Clay observed, confidently. “I only hope the
kid is there,” he added, turning on power and dropping down stream.

There was a little sand island—one of the kind which lift above the
water one day and sink down the next—just below where Captain Joe had
taken to the shore, and here Case left the _Rambler_, resolved to make
his way to shore along a spit of sand which almost joined the beach with
the island.

Both Clay and the deputy objected strongly to his going, but he promised
to keep close to the boat and to take no needless risks. The boy bent
low as he crossed the strip of beach, desiring to keep out of sight of
those above if possible.

“I wish I had gone with him,” King said, as Case disappeared over the
sand hillocks. “He may come across the boys, but find himself unable to
bring Don Durand back with him.”

“Does the boy know that the search for him is on here?” asked Clay.

“Oh, he knows, generally, that officers are in pursuit of him,” was the
reply. “He is hiding in all kinds of out-of-the-way places. Without
doubt he slept on your aft deck last night, and breakfasted off pancakes
and honey!” the deputy added, with a provoking grin. “And you never knew
he was there! He must have been hungry.”

“Then I’m glad he got the pancakes!” insisted Clay. “He was welcome to
them, and might have had a softer bed last night, if he had only made
his presence on the _Rambler_ known to us. How long ago was it that he
took this money?”

“Oh, somewhere near a month ago,” was the reply. “He has given the
officers a great chase, if he is a mite of a fellow.”

The _Rambler_ lay off the sand island, and close to it, for the water
was deep on one side, for an hour before any movement was seen on shore.
The Mexicans above had evidently taken shelter from the scorching sun,
believing that they would be able to intercept the boat if she started
up stream, for no one was in sight on shore opposite the old anchorage.
It was very hot on deck, and King and Clay sought the cabin, resolved to
there await some signal from Case.

Presently Captain Joe’s head showed above the natural levee, and then
the body of the white bulldog lifted over the elevation, shot swiftly to
the water line and swam off to the _Rambler_, Clay and the deputy
watching to see that he was not followed from the shore.

“Now, what do you think that means?” Clay asked, as Captain Joe gave the
deck a liberal sprinkling and took his place in front of the boy,
regarding him with watchful and anxious eyes. “He wants something.”

“He wants us to go ashore with him,” King interpreted. “He’s found the
boys, and they are in trouble. Now, what about leaving the boat?”

“We might as well make the Mexicans a present of it,” Clay answered.

“That’s true!” King replied. “Well, you can do more with the boys and
the dog than I can, so you would better go with him. I’ll do the best I
can to defend the _Rambler_, if an attack is made.”

Clay was uncertain as to the correct course to pursue. While he did not
doubt the honesty of the deputy sheriff, he realized that he was out in
quest of a fugitive for whose arrest a large sum of money was offered.
The boy understood that the officer would adopt almost any selfish plan
that promised success to his official undertaking.

He believed that he would even requisition the _Rambler_ and sail away
with it if he should by chance find, or get, the fugitive on board
during the absence of the owners. There would be need of his sailing
away instantly, too, for the Mexicans were reckless and vicious, and out
after the same reward!

Just how King might get Durand on board during his absence he had not
the slightest idea. In fact, he considered such a thing as utterly
impossible, and yet he found himself actually considering such a
possibility in reaching out for reasons why he ought not to leave the
_Rambler_ in the sole charge of this stranger.

Clay knew that there was always a chance that Durand, pursued by the
Mexicans, might make for the motor boat, not knowing the conditions
existing on board. Still, it was so remote a chance that he smiled as he
considered it. But something had to be done.

Captain Joe’s return, his attitude, told of trouble ashore. If all had
been well with the boys, one or all of them would have accompanied the
dog to the motor boat. Clay decided to take the one chance there was of
losing the _Rambler_—the only chance there was if King was what he
professed to be. The boys demanded his whole attention.

“There’s only one thing I want to say to you,” King said, as Clay
lowered himself over the rail. “If you find this Durand boy with the
others, just bring him along with you, and say nothing about my being on
board. If you get him here, you shall share the reward.”

Clay made no promise. He was more than disgusted at the course events
were taking. Instead of sailing, care-free, up the river, as had been
planned, his chums were in some trouble of which he knew nothing on
shore, and he was leaving the _Rambler_ in the charge of an entire
stranger.

Besides, on their very first day on the Colorado, they had become
entangled in the meshes of a crime committed in Chicago more than a
month before, and the boy had had enough of crime on his previous river
trips!

Just now, his chief aim was to get entirely away from civilization. He
wanted to get his friends together once more, get rid of King and all
that he represented, and proceed to the wonderful sights to be found on
the river. He wanted to lose sight of everything save the original
purpose of the trip. He had had enough of mixing with others’ affairs!

He gained the shore without getting more than his feet wet and crossed
the tide-washed stretch of sand to the natural levee. Looking back, he
saw King tinkering with the motors, and was seriously inclined to return
to the _Rambler_. But Captain Joe was urging him on with all the
arguments known to a white bulldog, so he crossed the string of sandy
barrier and set out for the spur which ran down from the foothills.

There was no one in sight, either up or down the river, and his idea was
that the Mexicans had deserted the position opposite the old anchorage.
Either that, or they were in hiding ahead, waiting to seize him.

Finally Captain Joe deserted him, wandered off unobserved into one of
the wrinkles in the hills. He could not understand this at all, for the
dog should have continued to lead the way to the source of trouble he
had returned to the _Rambler_ to report.

For a moment Clay considered the advisability of returning at once to
the motor boat. The sun shone out of the sky like a blazing ball of
fire, and the sands were hot and blinding. As far as he could see, up
and down the river, there were no evidences of human life in sight save
only the _Rambler_, lying on a stream which seemed to Clay to have a
right to boil with the heat which surrounded it.

But Clay hated a quitter as much as he hated a coward, and so kept on
toward the glaring foothills which lifted straight away to the west.
Then voices to right and left told him that he had been trapped!




CHAPTER IV.—“THE PHANTOM BOARDER”


When Alex climbed over the top of the motor boat’s cabin for the purpose
of investigating the mystery of the disappearance of the cakes and
honey, he saw a dripping lad much smaller than himself sitting close
under the open window composedly devouring the pancakes and honey! So
great was the haste, or so imperious the hunger, of the boy that he was
cramming the cakes into his mouth as if stuffing them into a bag!

In the sheltered position in which he sat he could not be seen from the
inside of the cabin, even by one glancing through the open window,
unless the person so investigating should thrust his head far out of the
opening. He was crowded up against the rear wall of the cabin, in a
small pool of water which had trinkled out of his soaked garments. It
was evident that he had not long been out of the river.

Alex, lying flat on his stomach on the roof of the cabin, reached down a
hand in an attempt to seize the intruder by the hair of the head. Now
that he had discovered the purloiner of the breakfast, he was bent on
dragging him, a captive, before his chums—with what was left of the
cakes in sight!

But the boy did not reach down far enough. Instead of grasping the rusty
red hair of the visitor, he merely seized a flat, postage-stamp cap
which illy protected his head from the rays of the sun. The lad felt his
cap lifting and, thrusting the cakes, covered with honey as they were,
into a pocket of his trousers, looked up to see Alex grinning down at
him.

To this day Alex insists that he then saw the quickest human movement of
his life. One instant the intruder was sitting on the narrow aft deck
stuffing pancakes into his mouth. The next he was under water, swimming
swiftly down with the current! Alex saw only a twinkle of wet shoes and
dripping stockings and the lad was gone!

The boy watched the thief for only a second. Without stopping to warn
his chums, without considering the risks he was running, he foolishly
sprang down on the aft deck and dove headfirst into the river. It was
little wonder that the unusual proceedings at the stern of the boat
failed to arouse Captain Joe, for in a minute the boys were under water
and far down stream.

About the time Clay and Case were looking for their chum, Alex was, in
close pursuit of the pancake thief, crawling out of the river some
distance below at a point, in fact, where a sprawling island of sand was
almost connected with the shore by a long spit! Before the searchers
climbed over on the aft deck, the hot sun had completely evaporated the
water the intruder had brought there in his garments, so there were no
traces of his ever having been there at all!

Reaching the shore, the fugitive dashed across the tide-leveled beach
and sprang lightly over the levee. Alex came, panting, after him, for
the swim had been a long one, to meet with the surprise of his life when
he half climbed, half tumbled, over the shifting elevation.

The fugitive seized him as he dropped, turned him over by a deft and
powerful movement of hands, arms and body, and promptly sat down on him,
holding his arms down on his breast! Alex was practically helpless,
although his assailant was much smaller than himself, and panting, too,
from the same long swim—mostly under the reddish brown waters of the
river. He was not long, however, in realizing the humor of the
situation, for he looked up into the freckled face above him with a
grin.

Now, Alex’s grin was an alluring thing! He had conquered enemies with
it, and secured more than his share of Christmas presents at free
distributions in Chicago, when he was still a little tot. The victorious
thief “fell for it,” as he would have expressed it, and gave back one
that was very much like it!

“What’s doing?” Alex demanded, in a moment.

“What do you mean by spoiling my breakfast?” demanded the other.

Alex roared as heartily as was possible, considering the restrained
position in which he found himself. It was too funny!

“Your breakfast!” Alex exclaimed. “You’ve got your nerve! My breakfast!
You’ve got your appetite with you, too, if you ate all you stole through
the cabin window! You must have been hungry!”

The stranger bounded off Alex and sat down on the sand, keeping a
watchful eye on his late prisoner, however. Alex rose to a sitting
position and grinned again. The other took a pancake from his pocket and
began eating. Alex looked on and wondered at the appetite!

“Does it taste as mussy as it looks?” he asked, referring to the
pancake, which looked like a mass of brown dough dripping with honey and
crushed into odd shapes by soiled fingers.

“It tastes like something to eat!” was the reply. “Say, but I was about
starved to death when I smelt the pancakes. If I’ll go back on board,
will you cook me some more? I’m still hungry!”

“Sure I will,” replied Alex. “What did you run away for?”

“You haven’t heard?” demanded the other, suspiciously.

“Haven’t heard what?” asked Alex.

The other looked out to the foothills and back to the levee, which
concealed the river from view. Then he searched his pocket for another
pancake, failed to find it, and rolled along on the sand.

“Haven’t heard what?” asked Alex, determined to know what the other was
driving at. “What haven’t I heard? What you mean by that?”

“What’s your name?” the stranger asked, abruptly.

“Alex Smithwick,” was the quick reply.

“I’ve heard of you,” the other went on. “Some Chicago newspaper printed
a picture of the _Rambler_ and you three boys. That’s how I found the
nerve to visit you last night. I’m from Chicago. I was looking for you!”

“Tell me what it is I haven’t heard,” Alex insisted, “and tell me your
name! I’ve told you mine.”

“I’m Don Durand,” was the quick reply. “I guess that will tell all there
is to tell. Guess you’ve heard that name before!”

“You ain’t ever been president of the United States, or lightweight
champion, or the jockey that won the derby, or anything like that, have
you?” Alex asked, whimsically. “If you have, I’ve overlooked a big one,
for I never heard that name until just now! Unravel your crime, me son!”
he added, with a grin which brought out all the freckles in his friendly
face.

“It is a crime, all right!” Don admitted, hanging his head.

“I didn’t know it!” Alex cried, distressed at the other’s humiliation.
“If I had, I wouldn’t have said the word. If you don’t want to talk
about it, you needn’t.”

“I want you to know,” Don answered. “I’ve just got to tell some one, or
I’ll bust! I’m a thief!”

“Pancakes and honey?” asked Alex. “I knew that before!”

“No; money,” the other went on. “A whole lot of money!”

“Huh!” Alex observed, looking over the hot sand, the hotter hills, the
brazen sky, and the starved landscape, “did you come down here to serve
out your sentence? Strikes me that you’d better be in some nice cool
jail, where there is plenty of pancakes and honey!”

“I’ve stolen about all the money there is in the world!” Don said, in a
moment, a troubled look coming over his face.

“Have you got it yet?” asked Alex.

“Every cent of it!” was the reply. “Every last cent of it!”

Don threw off his wet jacket, loosened his waistband, and, after working
both hands in the vicinity of his hips for a moment, making wry faces
every second of the time, drew forth a waterproof belt the bulging sides
of which proclaimed crowded contents. After shaking it to remove any
chance drop of water, Don unfastened the buckles and began unwinding the
oiled silk which enclosed the contents of the belt.

Directly the long wrapping lay on the sand at the boy’s side, and the
burden of the belt lay revealed. Alex’s eyes bulged out so they ached.

The waterproof belt had been stuffed with money—gold treasury notes of
the denomination of $1,000!

“Wow!” Alex exclaimed, almost involuntarily. “Talk about wealth! There
it is! How many of those picture cards are there?”

“Fifty!” was the quiet reply. “I stole $50,000.”

“That’s nice!” grinned Alex. “Are you going abroad to buy a little
kingdom with it? Standard Oil hasn’t anything on you!”

“I’m going to give it to the owner,” was the unexpected reply.

“Well, why don’t you, then?” asked the boy.

“Because I don’t know where he is. He’s lost!”

“You knew where he was when you stole it from him, didn’t you?” asked
Alex. “Why can’t you go find him?”

“I didn’t steal it from the owner,” was the reply. “I stole it from the
man that stole it from the owner.”

Don, exploring the belt, brought out two slips of paper, read them over
hastily, and crushed them back into the secure cavity again.

Alex did not ask what the quick action meant, for he was busy with the
gold notes. He had never before seen so much money at one time in his
life. It seemed to him that all the wealth of the world lay exposed on
the hot sand at his feet. Don regarded it carelessly.

Presently Alex took the notes into his hands and began counting them. He
placed them in little heaps, then he laid them along the sand, end to
end. He was interrupted in the midst of this fascinating employment by a
low cry from Don.

“What is it he asked?” gathering the money up in one heap, preparatory
to concealing it. “Some one coming?”

“Some one peered over that sand dune,” Don answered. “I saw eyes like a
snake’s feasting on the money! I shouldn’t have taken it out in an
exposed place like this. What shall I do with it?”

Alex’s resourceful mind was not long in finding a way.

“Grab it up,” he directed. “Make as if you were putting it back in the
belt, but pass it to me, with the silk, and I’ll bury it in the sand.
Here, put plenty of sand in the belt, so it will look like it was still
full of money. Now, put it on! Turn so any one watching us will see you
doing it. They’ll think you're hiding the money in the belt again, but
we’ll fool ’em!”

Don did as directed by the quick-witted lad, and then Alex started away
toward the river, walking as if he had no idea that there was any one in
the world besides himself and friend. He smiled as he turned to his
companion, whose eyes were fixed intently on the location of the silk
covering which held the treasury notes.

“Think I’m going to cut and run with the mazuma?” he asked, following
the other’s gaze back to his own wet clothing.

“Why—why—of course not,” faltered the other. “Why should you?”

“I’m going to hide it in the sand, and take bearings so that either of
us can find it,” Alex went on. “This neat little bunch of spinach is not
for the Greasers! It might be their ruin!” he added, with a grin. “It
might drive them to drink!”

“But the tide and the current may wash that sand away, or shift it
about, within the next twenty-four hours,” urged Don, with a sigh.

“That’s true!” Alex admitted, with a worried look. “That’s true. We are
now up against the responsibilities of great wealth!” he continued, with
another whimsical grin. “Do you see the Greasers watching us yet? They
mustn’t suspect that the belt is empty of cash!”

“One of them peeped over a rise just as we started away,” was the reply.
“They’re watching us, all right enough. They smell money?”

Alex threw himself down on the sand, in a position which overlooked the
river, and rolled about in exaggerated ease. Don sat down close at his
side, and the money was buried between them.

“See that bald old peak across the river?” asked Alex, when the job had
been satisfactorily completed. “And that topknot to the west?”

“Sure I do!” Don replied, still watching the spot where the money had
been placed, and looking as if he would like to dig it up again.

“Well, when you want this cash, just come to the top of this barrier and
dig on a straight line between the two. Then you can’t miss it.”

“Unless the water gets here first!” Don grumbled.

“It _is_ risky,” Alex admitted, “but if you keep it in the belt the
Greasers stand a show of getting it, so where’s the odds? Just now they
think you’ve got the money on your person, and so, considering it safe
for the present, they won’t be in any hurry about attacking us. That
gives us a chance for our lives, anyway, though they’re pretty sure to
come after us before long.”

While the lads lay watching the river, and wishing themselves aboard the
distant _Rambler_, three ferocious-looking fellows crept upon them,
moving over the hot sand like snakes. So intently were the lads watching
the motor boat that the first intimation of their peril they received
was the harsh laugh of one of the Mexicans as the three closed up behind
the unsuspecting youngsters. When Alex turned around he found himself
looking into the steel-blue muzzle of an automatic.

“Welcome to our midst!” the boy said, trying to make a grin come easily.

One of the Mexicans seized Don by the shoulders and drew him back, as if
about to strip the money belt off him, but another checked him with a
coarse command. It was plain that they still believed the belt to hold
the treasury notes, and plain, too, that the three were not trustful of
each other. At least, for some reason, two of the three preferred
leaving the money where it was for the time being.

The Mexicans were evidently waiting for some anticipated event to take
place, for they sat down near the boys and kept close watch of the river
and the shore opposite where the motor boat lay. The lads soon saw Case
and Clay row down the river in search of Alex, saw King board the
_Rambler_, saw the Mexicans desert him, and heard the shots fired across
the levee.

They saw the dog spring overboard and swim down to them, but could not
induce him to come to them. Captain Joe soon disappeared, and in a
minute the _Rambler_ dropped down to the point where he had left the
water and Case landed on the island and made for the shore, almost
exactly where the lads lay with their captors.

Alex tried to warn the boy, but dropped back in disgust when a gun was
thrust into his face!




CHAPTER V.—A SURPRISE FOR THE GREASERS.


“Get up and get him!” commanded one of the three, in tolerable English,
as Case reached the shore. “We’ll have to take him, too!”

One of the others replied angrily, but neither of them moved. It was
evident that the three were suspicious of each other, and that neither
of them cared to lose sight of the boy who was believed to have the
stolen money.

They could not trust each other even to the extent of removing the money
from the boy who was supposed to carry it. Each one thought the boy’s
waist a more desirable place for the cash than the hands of either of
his companions!

The Mexican who had spoken in English turned to Alex with a malicious
grin on his dusky, dirty, greasy face.

“Call him here!” he commanded, pointing to Case, now turning off down
the river and looking sharply about for the boys.

“I won’t!” replied the boy. “I’m not going to help you get him! I hope
he’ll turn around and shoot you up! You let him alone!”

The other’s eyes blazed angrily and he leveled his revolver at Case, who
was still increasing the distance between himself and the boys.

“Very well,” the Mexican said. “We can’t permit him to spy about the
country. If you won’t call him to you, I’ll shoot him where he stands.
I’ll give you while you count ten to decide.”

This put a different complexion on the situation. Alex hesitated only a
second. He had every reason to believe that the Mexican would keep his
word regarding the suggested murder of Case. He looked vicious enough to
commit any crime, even that of shooting a boy in the back. If taken
prisoner, Case might still stand a chance of getting away, while if
deliberately shot down that would be the end of all things for him.

“Say, Case” the boy cried out, then. “Come on over here. I’ve got
something to show you. Hurry up!”

Case turned about and ran toward the sheltered spot where the men lay
with their prisoners. The boy’s face was wreathed with smiles, for he
had been more than anxious about Alex. The Mexican’s evil eyes lighted
up wickedly as the boy came up to his chums, looking suspiciously at the
Mexicans as he advanced.

There were no weapons in sight, and so Case’s suspicions passed away in
a measure, and he sat down by Alex’s side, his eyes fixed inquiringly on
the others, and especially on Don Durand, the boy King had described as
such a desperado. A bulging pocket at once caught the attention of the
Mexican who had ordered Alex to call the lad into captivity.

“Stand up!” he ordered. “Stand up and throw out those guns!”

Case threw a hand behind his back, but before he could draw the other
had him covered. Case stood up and dropped his automatics to the sand.
Then he turned a scornful eye on Alex, who sat chuckling as if he
considered it all a great joke.

“You’re a fine chum!” he said. “Turned pirate, have you?”

“Of course!” Alex returned. “I’ve got a choice collection of pirates
here. Ever see any alleged human beings who would fit an electric chair
any better than these three? They make a nice flock of jailbirds, don’t
they?”

“Is that what you called me over here for?” asked Case. “To say that?”

“I called you over here,” was the reply, “to keep a procession of
bullets out of your back. I’d rather have you here alive than out on the
sands dead! This other chap is Don Durand,” he continued, making the
introduction with a chuckle at the absurdity of the situation.

“I’ve heard of him,” Case answered. “King told me about the money he
stole. King will soon be down after him!”

“So!” exclaimed the Mexican. “You think he’ll come after the boy? That
is good news, but he needn’t to take the pains! As soon as we pluck the
kid we’ll send him up to King. What, fellows?” he added, turning to his
sullen companions with a provoking sneer on his hard face.

The two men nodded, but made no verbal reply to the question.

“Your friends seem to be afflicted with the mollygrubs!” Alex said,
turning to the spokesman of the party. “Perhaps they’ve been eating
something that doesn’t agree with them! Yes? No? What?”

“You seem to be a bright boy!” scowled the other.

“That’s the correct answer!” laughed Alex. “Why don’t you go on up to
the motor boat and get King? He’s looking for you.”

“I’m not looking for him,” was the sullen reply. “I’m waiting for him to
go away, then I’ll make myself scarce—him and his minions!”

Case now began to understand the situation. He had heard King say that
Don Durand carried about with him the money he had stolen. He knew that
King’s paid assistants had deserted him in order to get the money for
themselves if they could. What he saw now, was that these Mexicans had
originally been in the employ of the deputy, and that they had succeeded
in getting the boy where King had failed. Still, he could not account
for Alex’s being there with Don.

“King is going to remain here until he gets his prisoner,” he said,
presently, glancing at Don. “He wants that reward,” he continued, “and
is likely to get it, too, for all of you fellows!”

“He may have the reward,” snarled the Mexican, glancing at the boy
angrily, as if ready to punish him for speaking without permission. “He
may have the reward. All we want is the stolen money!”

“I hope it will burn up before you touch it!” Alex cut in.

“It is hot enough here to burn most anything!” Case observed.

“You see,” Alex commented, turning to Case, “what a fine, honest bunch I
butted into when I followed Don off the rear deck of the boat! This lad,
Don Durand, is a prince compared with the three Mexicans.”

The spokesman scowled fiercely, but the boy went on, taking a savage
delight in making at least one of his captors show temper.

“These three,” Alex added, swinging a hand around the circle of dusky
faces, “are the—the—well, they are the limit! They want to steal the
cash from the boy who stole it from the man who stole it from another
man! When they get it, if they ever do, they will fight over it—and this
Englishman, or the person who speaks English, will murder his companions
and take it all. It is a fine flock of jailbirds!”

The Mexican addressed a few angry words to a companion, and the latter
arose and moved toward Alex with a long grass rope. The boy sprang away,
but there was the ever-present revolver and the threatening face behind
it, so he settled back on the hot sand.

“If you say anything more,” the Mexican snarled, “I’ll have your tongue
tied instead of your hands and feet. Understand?”

Alex submitted to the tying without a word of protest, though he laughed
bravely in the face of the man who did the work. The boy had
accomplished his purpose, and was willing to suffer a temporary
inconvenience. He had notified Case that the three captors were
suspicious of each other, and probably would not stand together if a
rush was made against them. He had also informed him that the money had
not yet been secured by the Mexicans, and that they were as ready to
fight King or their fellow countrymen for it as to battle with their
captives.

Case understood that Alex was talking for his information, and once more
turned his attention to the motor boat. He saw Captain Joe trot over the
spit and the island and leap on board the craft, saw King and Clay
conversing together for a time, and then saw the dog leave the boat with
Clay close behind him.

The others saw what was going on, too, and the hearts of the boys sank
at the thought of Clay becoming a prisoner. Before Clay gained the shore
the Mexicans ordered the boys to their feet and retreated with them to a
more sheltered spot higher up in the foothills. Alex did his best,
during the move, to attract the attention of Clay and so warn him, but
the boy was across the levee, following the dog closely, and so the
prisoners with their escort passed over the level, scalding stretch of
sand without being seen by the searcher, who was still on the opposite
side of the barrier.

From their hiding-place the boys finally saw Clay climb over the sand
levee and continue on his way to the hills. For a moment Captain Joe
moved along ahead of him, his short ears pricked forward, his nose close
to the ground, then the dog ran on and disappeared in a wrinkle to the
south, where the hills reached out nearer to the shoreline.

The Mexicans were now holding what seemed to be a heated argument as to
the advisability of shooting Clay before he got to them. The boys could
understand only the words used by the spokesman, and he appeared to be
arguing against such a step, advising that murdering an American was a
crime which rarely escaped punishment. Clay heard the voices and stopped
short.

“Alex! Case!” he cried out. “Where are you hiding?”

“Answer him! Answer him!” commanded the Mexican. “Tell him to come here!
You will so save his life! Do it quick!”

“I won’t!” shouted Alex, raising his voice. “I won’t. Keep away, Clay!”
he cried, lifting his bound wrists high above his head in order that
Clay might see. “Keep away until you can bring help!”

“You fool!” shouted the Mexican. “You murdering fool!”

Instead of starting away, Clay ran forward, drawing his automatic as he
advanced. Two of the captors fired at him but missed. At the same moment
the third man, angry at Alex’s disobedience of orders, sprang upon him
and raised a revolver as if to beat his brains out.

But before the weapon could fall something which looked like a white
streak of wrath shot through the air and landed on top of the man who
was bending over the boy. The Mexican struggled, clutched at the dog,
and went down, with Captain Joe’s teeth in the back of his neck. Once on
the ground, he lay perfectly still, as the dog’s teeth seemed less
dangerous when no resistance was offered.

In the meantime, with Clay running forward, regardless of the shots that
were being fired at him, and Don Durand making off toward the hills to
the west, the two remaining captors lost interest in the situation and
struck out on a swift run.

When Clay reached the spot where Alex lay, still bound, he heard the boy
urging Case to follow on after Don and bring him back.

“He thinks Clay is an officer!” Alex shouted. “Go and tell him the
truth. Shoot the Mexicans and bring him back!”

Case understood in an instant and started on a run after the three, by
this time some little distance away. But the boy had advanced but a few
paces when he saw one of the Mexicans reach out and drag Don to the
ground. There he proceeded to search him for the money belt!

Case’s shot was not necessary at that time, for the other Mexican turned
about and shot his companion through the head. Then he, in turn, bent
over the boy, unfastening the belt with fingers which were uncertain
because of the excitement of the time.

Case saw him lift the belt and turn away. He raised his revolver, which
he had snatched from the ground at Clay’s first shot, and fired, not
knowing whether he was aiming at the head or the heels of the fleeing
man. The bullet struck the Mexican in the right shoulder and the belt
dropped to the ground. Without stopping to pick it up the fellow
continued his course to the hills, and, as Case did not follow, was soon
lost to sight. Don Durand was also hidden in the hills.

When Case returned to Clay and Alex with the sand-stuffed belt in his
hand they both reached out for it. Alex did not care to have the
deception discovered, and Clay desired to take a look at the money which
King had told him about. The Mexican looked on with sullen eyes.

Alex got the belt and then asked:

“Why didn’t you bring Don back with you?”

“He went up in the air,” was the reply, “just like Alex did earlier in
the day. One second he was on the ground with a man searching him, and
the next he was nowhere to be seen. Why did he run away?”

“He thinks Clay is after him,” grinned Alex.

“But he left his money behind,” Case put in.

“Yes,” Alex admitted, with an inward chuckle, “and I’ll look out for it
until he returns. I promised him I would if anything happened to him.
He’s keeping the money for the man it was stolen from.”

Alex placed the belt about his own waist and watched the Mexican
wiggling away. There was no reason why he should detain him. Don was off
into the mountains and there was little danger of his being caught. The
money was hidden in the sand, and would be safe until either Don or
himself dug it out. So, on the whole, it might be just as well to permit
the fellow to make his escape!

The firing had, of course, attracted the attention of Deputy King, and
the boys now saw him approaching. The Mexican saw him, too, and,
bounding to his feet, darted away. In two minutes’ time he was out of
sight in the hills. The third man lay dead where he had fallen.

When King came up there remained only Clay, Case, and Alex to greet him.
Before he had quite reached them, the latter warned the others to say
nothing of the money belt. After they were on their way, after Don was
out of his reach, King would undoubtedly be told by some of the Mexicans
that the belt had passed to Alex.

In that case, the boy reasoned, the pursuit of Don would cease for a
time, and that would give him an opportunity to find the person the cash
had been stolen from. Don had not told the whole story of the crime to
Alex, but the latter had heard enough to cause him to sympathize with
the boy and wish him all luck in getting away.

“Why,” King said, coming up to the little group, “I was sure I saw a
smaller lad here with you. Where is he now? Did you let him get away?”

“He went right up into the blue sky!” insisted Alex.

“And the Mexicans went with him?” asked King, with a smile.

“They’ll not catch him,” Case answered, “if he keeps on running.”

“It looks more like they would catch the Rambler!” shouted Alex.




CHAPTER VI.—TEDDY BEAR MAKES A HIT.


All turned toward the river as Alex shouted out the warning. The level
of the hiding-place chosen by the Mexicans was above that of the levee,
and so the _Rambler_ could be distinctly seen by the boys. She lay in
the river without motion, save now and then a jerky pull at the
anchor-chain, but just below her a rowboat was moving swiftly up stream.

The intention of the rowers, of whom there were three, to board the
motor boat could not be denied. If they succeeded, and knew how to run
the motors, the craft would be at their mercy.

Clay, Case and King started toward the river on a brisk run, but Alex
loitered behind for a reason of his own. He knew that the three could do
all that more could accomplish in the way of rescuing the boat, and he
had a little mission of his own to carry out before leaving the place.

He wanted to secure the buried money and hide it safely away on the
_Rambler_! Clay and Case believed that the belt had contained the cash
when passed over to him. He wanted them to think, when the truth became
known, that the sand filling had been supplied by Don without his
knowledge, and with a view to deceive.

In short, he wanted no one to know that he had the money. He knew that
he could trust Case and Clay, but he knew, also, that they could not be
dragged into trouble because of the stolen money if they did not know
that it was on board! He wanted to keep the cash for Don, but he did not
want any one to know that he had it.

When, in the future, the belt should be brought out and shown to contain
only sand, that would settle the money part of the affair so far as the
boys were concerned, he thought. And King did not even know that he had
the belt, and there was no need of his knowing.

Thus reasoning, even at that exciting time, Alex managed to fall down on
the exact spot where the treasury notes had been buried and secure the
oiled silk package without being observed in the act.

In fact, at that time, Clay, Case, and King were utilizing all their
energy in the run they were making to head off the rowers and get to the
motor boat first. The men in the boat were rowing to the utmost of their
strength, and it seemed certain that they would win out in the race.

The three were still on shore when the rowers, abandoning their own boat
in their haste, sprang on the _Rambler_’s deck. One of them rushed to
get the motors into action, while the others drew guns and lined up
along the side of the boat which the others would approach.

“There is no way but to fight it out!” Clay cried, drawing his own
automatic. “If they get off with the _Rambler_ now, that will be the
last of her so far as we are concerned.”

The boarders crouched down behind the railing, exhibiting only ugly,
triumphant faces. The man at the motors seemed to be having trouble with
them, for there was no answering snap when he turned on the feed. The
others finally gathered about him, as if to assist in getting the boat
under way. Then an unexpected thing happened.

The boys saw the man who had first approached the motors spring into the
air with a look of pain and terror on his face. Then the others almost
turned handsprings getting to the prow of the boat. There was a sullen
snarl on the deck, and then a furry object shot forward to the prow
where the intruders stood.

In a moment the deck was clear, except that Teddy lifted his paws to the
railing and looked across the island at the boys, winking one eye as if
calling attention to a battle well won. He had been asleep by the motors
and the intruder had stepped on him! That told the tale!

The bear had bitten the fellow through the ankle, and the battle was
ended with that one bite! When the boys reached the boat the three men
were swimming down stream in a futile effort to overtake their deserted
rowboat. Teddy welcomed them on deck with a grin that was almost human.

After Captain Joe had been praised for his part of the fight on shore,
and after Teddy had been told what a hero he was and given all the honey
he could consume at one sitting, the two, the dog and the bear, repaired
to the aft deck to compare notes and fall asleep.

“That’s some bear!” King said, as Teddy shambled away.

“The fellow must have stepped on him,” Alex grinned. “Teddy is
particular about not being stepped on. He doesn’t like to be used as a
rug. My, how those chaps did swim! Guess they thought there were a dozen
bears in the water after them! Yes, Teddy’s some bear.”

King eyed Alex with disapproval for a moment and then asked:

“How did you come to let Don Durand get away from you?”

“Ask the Mexicans how they came to let us get away from them,” replied
the lad. “I guess you saw what was going on. When Don ran away we were
all pretty busy. Besides, you were not much farther away from him than
we were. Why didn’t you catch him?”

“You were with him some time before the Mexicans came up?” asked King.

“Not so very long,” was the reply.

“What did he say to you?” was the next question.

“He said he took the money from a man who stole it, and would return it
to its real owner as soon as he could find him.”

King broke into a laugh, his eyes narrowing as he looked at the boy’s
face. Alex only grinned impudently back at him.

“You believe all he told you?” the deputy asked, in a moment.

“I didn’t say that. I didn’t say anything about what I believe. I can’t
see as it makes any difference to you, anyway. I’m not a factor in the
case. Don Durand is over there in the hills somewhere. Go and get him—if
you can.”

King looked the boy straight in the eyes for a moment and then turned
away with a laugh which the boys did not like the sound of, it was so
low and threatening.

“All right!” he said. “I’ll go and get him!”

There was anger in the deputy’s face and manner as he stepped over to
the sandy island and turned toward the shore.

“Wait!” Clay called after him. “Do you see what time it is? Most noon
and we’re all hungry. Wait and have a dinner with us.”

“Anyhow,” Alex added, conciliatingly, “your Mexican deputies have taken
to the mountains, and you can do nothing alone. Come on back and let us
show you how hungry boys eat! No use to go ashore now!”

King, noting the changed tone, hesitated, looked shoreward for a time,
and then turned back to the _Rambler_. He was silent for a time, and
then asked:

“Did this Don Durand say where and when he expected to find the real
owner of the stolen money? Did he say who owns it?”

Alex shook his head. His idea was that King should join them in a good,
friendly dinner and then go away without asking questions about what Don
had or had not said. He had a notion, a hope, too, that, in time, Don
might join the _Rambler_ crew if King would only get out of the way.

“We didn’t have time to talk about anything,” he explained, pleasantly.
“Just as soon as we got to shore the ruction commenced, and we were kept
busy taking care of ourselves. He would probably have come back to the
boat with us if he hadn’t seen you. You frightened him away!”

Having thus adroitly placed the blame for Don’s flight on the deputy,
Alex leaned back in his chair and pretended to be very sleepy.

“I don’t blame you for his flight,” King finally said, “but I really
believe you might tell me more of his plans. It seems he became quite
friendly with you. Has he kept all the money?”

“He said he had every cent of it,” Alex replied, not adding that at that
minute the stolen treasury notes were hidden under his own clothing.

“If I could get hold of the stolen handbag and the money,” King went on,
“I think I might be able to compromise for the boy. The man who lost the
bag and the notes seems to want to get his property back more than he
wants the boy punished.”

Alex considered this new proposition gravely. Could King suspect that he
had the money? It seemed to the boy that the bag was of too trifling
importance to be mentioned in connection with the money. That is, unless
it had contained something of great value besides the treasury notes!
Was King talking for his benefit in suggesting that the return of the
money and the bag might release Don from further pursuit?

Then Alex remembered the papers he had seen Don stow away so carefully
in the belt. They might be of the greatest importance, and he resolved
to examine the belt at the first opportunity in order to see if they
were still there. King watched the boy curiously, as if understanding
what was passing in his mind.

“I don’t think he will ever give up the money,” Alex said, presently,
“until he gives it to the person to whom he thinks it belongs. I guess
he took it from this man Josiah Trumbull just to pass it on to the real
owner. I don’t know anything about the bag. He did not even mention it
to me,” he concluded, looking King enquiringly in the face.

“The man who came out from Chicago to see me,” the deputy explained,
“laid great stress on the handbag. He seemed to think that Don would
keep the bag as well as the money. And he wanted the bag just as much as
he wanted the treasury notes.”

“How did he know that Don was out in this country?” asked Alex.

“Oh,” laughed King, “a lad like Don is easy to follow. He was in Phoenix
and Yuma several days, but always got out just ahead of the man who
engaged me to handle the case. He must have had warning of his coming, I
think.”

“What was he doing in Yuma and Phoenix?” asked Alex, in a moment.

“Hanging around the hotels, evidently waiting for some one.”

“Huh!” the boy ventured. “I guess his story is true, then. He might have
been looking for the real owner of the money and the handbag. Think so?”

“He may have been,” was the reluctant answer. “In fact, I believe the
boy really thinks he is doing a noble deed in keeping the property he
stole for some unknown person thought by him to own it.”

“Glad you think that!” exclaimed Alex. “Don thinks he is doing the right
thing, anyway, whether he is or not. I like him!”

“At any rate,” King concluded, “he has a loyal friend in you, and I
shall say no more about the matter while I am your guest. I hope,
however, that he will give me a chance to confer with him before long.”

“If he should come to you to talk things over,” Alex asked, “wouldn’t
you arrest him? Would you let him go back to his hiding-place
unmolested? I may see him some day, and I’ll tell him what you say.”

“Yes; he may talk with me without fear of arrest,” was the reply. “And
now,” the deputy went on, “that I have said just what I came back to
say, I must be on my way. If you see Don, say to him that I want to have
a talk with him, and that he will profit by the interview.”

King arose and, after expressing thanks for the boys' hospitality,
passed over the sandy island and the tapering spit, and was soon lost to
view in the foothills. Alex watched him with a smile on his shrewd face.

“There’s something about this case I haven’t got hold of yet,” he mused.
“There was something in the handbag besides money. Anyway, the Trumbull
person wants it, and Don hasn’t got it. Now, I wonder if the papers I
saw Don have were in the handbag, and whether they are not the property
the man who engaged King is so anxious to get?”

The boys were all tired, and it was finally agreed that they should run
up the river a few miles, “just to get out of the bullet zone,” as Clay
expressed it, and take an afternoon, siesta in the cabin, leaving
Captain Joe and Teddy on guard. Alex was glad of this arrangement, as he
was anxious to get a look at the belt, in order to see if the papers he
had seen Don have were still there.

The motor boat was speeded for an hour or more, and then Case and Clay
sought their bunks in the cabin. The little room was insufferably hot,
but it was, at that, a slight improvement on the deck outside, so the
lads made the best of it. Alex did not permit himself to sleep with the
others, but lay awake, listening, with his eyes closed, until the
regular breathing of his chums told him that they had passed into the
land of dreams. The boy was miserably tired and sleepy, for the day had
been a trying one, but he forced himself out of his bunk, and over the
cabin roof to the aft deck.

Captain Joe was sound asleep on the prow, but Teddy crawled over the
cabin with him and cuddled down by his side. Once out of sight of the
others, Alex removed the belt and proceeded to empty the sand out of it.
He remembered that Don had placed the papers he had been so careful of
in the belt, and felt for them. They were packed into a close wad in one
end of the opening, and he took them out.

They were covered with letters and figures which at first had no meaning
to the boy. One held the letter “X” in the center, the same being
surrounded by letters, standing singly and not in groups like words.

The other carried a sunburst in the center and was surrounded by
figures, each standing alone, as was the case with the letters. For a
time there seemed to the boy to be no connection whatever between the
two papers, but finally he saw that one referred to location and one to
time. The figures represented hour and minutes and the letters the
points of the compass. Alex could make nothing more of them.

The papers must be important, for they had been as jealously guarded as
the money itself. Alex thought that in time he might be able to read
their message, so he made exact copies of them for daily use and put the
originals back in the belt.

Then he unwrapped the money, saw that it was all there, and again placed
it in the oiled silk. It was his idea to hide the money in one place and
the belt in another. He tried to think of a safe place for each, but he
was very tired and sleepy. That had been such a long swim! At last he
rolled the notes up tight in the silk and placed the package in a
pocket, resolved to hide it in the cabin when the boys awoke and left
the way clear. Then he closed his eyes, “just for a minute,” he needed
rest so much!

The motor boat drew sturdily at its cable. Captain Joe arose from the
prow and cocked his ears at a mysterious sound. Teddy cuddled closer to
the sleeping boy. The sun moved slowly to the west and the heat of the
day in a measure departed.

Presently the dog moved over to the aft deck and stretched out with his
nose on his paws. Alex, worn out with the activities of the day, slept
on for an hour or more. When he awoke Captain Joe was pulling at his
sleeve and Teddy, the mischievous bear cub, was romping about the small
deck with one end of the oiled silk in his mouth—the strip of oiled silk
which had held the fifty thousand dollars in gold notes!




CHAPTER VII.—THAT HAUNTED STERN DECK!


Alex’s first thought was of the money, the fifty thousand dollars in
gold notes which he had been handling just before he had dropped off
into the sound sleep from which Captain Joe had awakened him. The oiled
silk the bear cub was playing with had enclosed the money! That had not
disappeared, but where were the precious notes—the money upon which so
much depended? The boy was dazed for an instant.

Then the thought that one of his chums might be playing a practical joke
on him came to his mind. Of course that was it! The motor boat was
anchored nearly in the middle of the Colorado river, not far from the
Gulf of California, at least a mile from either shore, so no one could
have stolen the money!

The position of the sun told the boy that he had not been asleep more
than an hour, and there were no signs of a boat on the river. If some
thief had boarded the boat Captain Joe would have attacked him. Then he
remembered that the dog had not attacked Don, and was not so certain of
that point. Still, he was hopeful that Case or Clay had taken the money
while he slept, in return for his secrecy in hiding the fact of its
possession from them. Yes; that certainly was it.

The thought cheered him, and, rising to his feet, he looked through the
open window which gave on the interior of the cabin, expecting to see
the boys chuckling over his distress. But the boys were still asleep.

This was a facer! The next impression that came to the boy was that
Teddy had shaken the notes out of the silk covering and that they had
fallen into the river. This was not a pleasant conclusion, and Alex
tried to dodge it, but still it forced itself upon him.

And the original papers? They had gone with the money! Alex felt like
dropping into the river and sinking to the bottom. He had copies of the
papers, but he just could not lose that money! It did not belong to him!
It did not belong to the boy who had entrusted it to him. He would be
accused of stealing it!

He looked in every crevice of the aft deck, even lifting the trap
covering and looking down on the gasoline tanks. He crawled quietly back
over the cabin roof and searched every part of the deck. There was no
trace of the money or the papers. It was maddening!

“I guess the notes are drifting down stream,” the boy finally said, with
tears of vexation in his eyes. “Captain Joe,” he added, turning to the
dog, who had followed him over the cabin to the forward deck, “why
didn’t you wake me before? Why did you let Teddy get the package?”

Captain Joe looked gravely up at the boy and wagged his stump of a tail.
His eyes said that he knew all about it, and could explain everything if
he only had the gift of speech!

“Did some one come aboard and get it, Captain Joe?” the lad asked, half
convinced, in his misery, that the dog could explain the mystery.

The dog seemed to understand the question, for he sniffed at the rail of
the boat, appeared to pick up a scent, sprang over the cabin, and sat
down on the aft deck to look steadily into the river.

“Oh, he did!” Alex cried. “He came in over the prow, climbed over the
cabin, dropped down on the aft deck, snatched the money, and dove into
the river. I understand, old boy! But why didn’t you stop him?”

Captain Joe, recognizing the tone of reproach, slunk back over the cabin
and lay down on the prow, a favorite resting-place. Teddy laid the strip
of oiled silk at Alex’s feet and looked up with twinkling eyes, as if
inviting the boy to pick it up and have a romp with him!

“You poor little beastie!” Alex exclaimed. “If you could only talk for a
minute I’d soon know where the money went to! I believe Captain Joe
might tell me more if he wasn’t so lazy!” he added, going back over the
cabin and calling the dog to him. “I believe that stern deck is
haunted!” he added.

This time he gave the silk to the dog and waited to see what he would do
with it. Captain Joe was undecided for a moment. He seemed to think Alex
a very foolish boy for handing him such a rag as that to pick up a scent
from! Then he went to the aft deck and laid the silk down on the extreme
edge of the low railing. Teddy snatched it off and began romping with
it, much to the disgust of the anxious boy. Hopeless!

“Fine old watchdog you are!” Alex exclaimed. “Next thing you know, some
one will come on board and steal your ears! You let Don on this deck,
and permitted him to sleep here, you ornery cur, and never said a word
to us about it! Now you’ve let some pirate come here and steal more
money than I’ll ever be able to pay back—not if I live to be a thousand
years old! I didn’t think it of you, Captain Joe!”

The dog slunk away, and Alex sat down to the bitterest time of his life.
What could he say to Don when he returned and asked for the money? What
could Don say when questioned regarding the honesty of his motives in
taking the handbag and the notes from Trumbull? He could not restore the
money, and therefore his assertion that he had taken it only to place it
where it belonged would look decidedly flat.

Alex was too honest to think of denying that he had taken the money from
its hiding-place in the sand, although no one knew that he had done so!
He could only admit taking it and tell the story of its loss—a story
which he feared no one would believe! The fifty thousand dollars were
gone, and the boy believed that his chance for an honorable career had
gone with them.

At last he picked up the silk from the ledge where Captain Joe had
placed it, folded it carefully, and put it into his pocket. Then he
looked about for the belt. That, too, was gone! He looked everywhere for
it, but it was not found.

He made an especially careful search for it because he knew that he must
account to Clay and Case for it. They knew that he had had it. They had
been led to believe that it still held the stolen money! What would they
say when he told them the exact truth about the matter?

The boys slept until nearly sunset, and then came rolling out of the
cabin proclaiming appetites beyond those of all other days! As for Alex,
it did not seem to him that he would ever want to eat again!

“Tell you what, boys,” Clay explained, as the three sat down to a
quickly-prepared supper, “we ought to go on up the river to-night. We
ought to get farther away from the Mexicans and the deputy sheriff. They
are hot after the money Alex is carrying around in that belt, and we may
be attacked at any time. We ought to get up past Yuma, at least!”

Alex bit his lip and turned his head away. The time had come when he
must face his chums with a story so flimsy that he would not have
believed it if coming from the lips of another! The time had come!

“Yes,” Case agreed, “we ought to be getting away from here. The men we
did business with down the river would go to any trouble to follow us;
would commit any crime to secure possession of the fifty thousand
dollars Alex has in the belt the Mexican robbed Don Durand of.”

“Where is the belt?” Clay asked. “Why don’t you show up, Alex, and let
us see what a stack of money looks like? How long do you suppose we will
have to keep it before Don gets to us and claims it?”

“Yes; produce it!” cried Case. “I can smell it now!”

“I haven’t got it!” was all Alex could find words to say just then.

The others looked at him in utter bewilderment until his eyes fell.

“Who has it, then?” Clay demanded, in a moment.

“I don’t know!” Alex replied, drearily, and then he told the whole
miserable story—of the sand in the belt, of the papers hidden with the
sand, of the concealment in the levee, of the removal, and finally of
the loss.

Clay drew a long breath when the boy had concluded.

“I don’t expect you to believe it,” Alex ventured. “I wouldn’t believe a
yarn like that if told me by a preacher.”

“If I told you, you would believe it, wouldn’t you?” asked Clay.

“Yes,” answered Alex, “I would!”

“Then I believe you!” Clay shouted, loyally, taking the boy’s hand.

“And I, too, believe you!” Case cut in. “It is queer, though!”

Alex tried hard to tell the boys how much he appreciated their loyalty,
but his lips were quivering, his throat was too dry for speech, and
there was a suspicious moisture in his eyes, so he gave over the attempt
and sat looking at them in a way which told the story much better than
any words could have done. Half his burden had dropped away, for they
trusted him. Clay was first to speak.

“Suppose we spot the thief by the process of elimination,” he said.

“Go ahead, I’m all clogged up, mentally,” Case answered. “How any one
ever got on the _Rambler_ and got off again without our knowing it, is
something I can’t understand. Why, there’s not been a boat in sight all
day, unless one came up while we were asleep,” he added, a little
sheepishly. “I believe there’s magic in it.”

“Who knew that you had the money, Alex?” asked Clay.

“The Mexicans, and they thought it was in the belt. Don probably thinks
it is still in the sand heap, and King never knew I had it.”

“Then we have only three to look after. These are the two Mexicans and
Don. The others are out of it,” said Clay.

“But why Don?” asked Case.

“The three I have named would have plenty of reasons for following the
boat,” Clay continued. “Now, let us consider their several chances of
overtaking us. We have traveled about fifteen miles by river, but we
have passed around a long point of land, and are not more than eight
miles from the starting point. You can see how it is by looking at the
river map.

“Now, the Mexicans would be likely to have horses near at hand, as they
had been deputized as special officers to assist in the capture of the
boy. They could, by quick action, chase across the point and head us
off.

“Now, about Don. He would go back to the levee to look for the package
of money and would lose time. Besides, he would have to travel on foot,
so that, it seems to me, leaves him out of it. This passes it all up to
the two Mexicans. What do you think of my Sherlocking, eh?”

“Unless Teddy shook it out of the package and dropped it overboard, you
must be right,” Alex hastened to say. “He was playing with the silk, you
remember!”

“Or unless Don ran across the point of land we sailed around and took
it,” Case suggested, with a wink. “He might have done so, you know, so
that knocks your Sherlocking all out!”

“What would Captain Joe be doing while the Mexicans were on the boat?”
asked Clay, perplexed. “I never thought of that! He loves Mexicans like
cats love hot soap. Guess my elimination theory has led me into a hole
that gets me nowhere! Now, what is to be done?”

“I don’t know!” Alex answered. “I’ve lost the power of thought.”

“I can’t think in such large sums as fifty thousand dollars,” grinned
Case. “Don’t ask me for an expert opinion! I can’t give one!”

There was a long silence, and then Alex took out the copies of the
inscriptions—as he called them—which he had found in the belt. Clay and
Case opened their eyes wide at sight of them. When Alex explained their
history, as far as he knew, the boys fell to studying the letters and
figures with anxious interest. Alex looked on doubtfully.

“What do you make of them?” he finally asked, as Clay held one of the
papers up to the light.

“Is this an exact copy?” he asked. “Did you place your letters and
figures just as the letters and figures on the originals were placed?”

“I surely did,” was the reply. “They are exact copies.”

“Hush, then!” Clay whispered, with a grin. “We tread on dangerous
ground! Aha! These papers tell of the whereabouts of a buried treasure!”

“Hush!” repeated Case, with a mocking face. “Hush! Also S’cat!”

Alex looked at his chums reprovingly. This did not seem to him to be a
time for by-play. He had lost a large sum of money which did not belong
to him, and all the world looked black and creepy!

“Oh, cheer up!” Clay laughed, slapping the boy on the back. “We’ll find
your money for you! Everything always comes out right with us! You know
that yourself. Everything always comes out just as it should!”

“You know it!” Case cut in. “You know that we always find the right
answer! Now, suppose we let this money and these inscriptions take care
of themselves for the present, while we decide what to do to-night. It
will be bright, from all appearances, so perhaps we’d better be on our
way to the big noises of the Colorado.”

“I’m willing to go anywhere!” Alex complained. “I can never look myself
in the face again! Think of losing fifty thousand dollars, when a five
case note would look like unlimited wealth to me!”

“Here comes a fleet of river boats!” Clay shouted. “Look at the little,
one-sided things! What they loaded with. Case?”

“I’m not a mind reader!” laughed the boy. “Looks, though, like they were
loaded with merchandise. I suppose they’ve been lying in some cool cove
all day, and will make good time to-night.”

The little steamers came slowly up to where the _Rambler_ was anchored
and passed on without giving the motor boat more attention than a close
scrutiny from the decks. The sun was going down over the ranges to the
west and dusk was settling over the valley of the Colorado.

The boys heard the rattle of spars and chains for some time after the
little steamers had disappeared under the veil of the twilight, and now
and then a black column of smoke from some stack proclaimed the activity
of a fireman working down in a shallow hold.

After a short wait the _Rambler_ was gotten under way, and the boys
prepared for a wakeful night. They sat on the forward deck for a long
time, talking over the strange events of the day, and then Alex was
almost forced by his chums off to his bunk.

As the weary, discouraged lad turned into his bunk he heard noises on
deck which set him to wondering what his chums were doing, but he was
too sleepy to open his eyes. He turned his face to the wall and was soon
asleep. Case and Clay sat well forward and did not hear the bump of a
boat against the stern.

The dark figure on the aft deck was out of their sight.




CHAPTER VIII.—DEPUTY KING GETS A BATH.


Alex was awakened by the little cabin clock striking midnight. He lay
quiet for a moment without opening his eyes, for he was still very tired
and sleepy, notwithstanding his unfortunate afternoon siesta. Presently
he felt the cold nose of the bear brushing against the palm of one hand,
which was hanging over the edge of the bunk.

As this was a trick often resorted to by the cub to attract attention
when he was hungry, or wanted some one to play with, the boy took no
special notice of it. Then a strange rustle and stir in the cabin came
to his ears, a combination of sounds which proclaimed a hustling about
of furniture and a tossing about of small articles.

At that he opened his eyes and sat up. Then he rubbed his sleepy eyes
and stretched out a hand in the direction of the place where he always
kept his automatic at night. The weapon was not there!

What he saw was King, the deputy sheriff, opening and closing the
drawers under the bunks where Clay and Case slept. He was tumbling the
contents of the drawers over the floor and frowning savagely as he
turned the medley of furnishing goods with nervous hands.

Now, how came it that King was on board the _Rambler_? The deputy had
left the boat for the purpose of pursuing the boy who had taken the
money and the handbag from Josiah Trumbull. By this time he ought to be
far into the mountainous district to the west. And what was he doing
there? And where were Case and Clay, and Captain Joe?

These questions, and many others of a similar kind, came to the boy as
he watched King throwing the boys’ shirts, collars, ties, underclothing,
and toilet articles about. But no answers came, except that a low growl
from the dog sounded from the open doorway. Turning, Alex saw that he
was tied by a chain to the top bar of the deck railing.

Captain Joe was pulling at the chain, his red eyes were glaring angrily,
and his capable teeth showed under his snarling lips.

Alex beckoned silently to the dog, and he pulled at his chain fiercely
and set up a great barking. Then King looked at the dog and at the bunk
where the astonished Alex sat, still motioning to the dog.

“Good morning!” the deputy said, with a smile which was not altogether
hostile. “How do you find yourself this morning?”

“You’ve got your nerve!” Alex replied angrily.

“If I should lose my nerve,” the deputy returned, with a wink at the
struggling dog, “I wouldn’t get any jobs! Nerve is an asset with me.”

“What are you doing here—nosing in those drawers?” asked the boy.

“Looking for the belt you picked up down below,” was the reply.

“I didn’t pick it up,” Alex answered, with a frown which did not at all
improve his appearance. “I didn’t pick it up.”

“Your friend did, though, and gave it to you. Where is it?”

“I haven’t got it! Some one came on board and stole it.”

“That may be. Clay and Case said the same thing. Let the belt go. Where
is the money?”

“Stolen,” answered Alex. “Carried off when the belt was taken.”

“See here,” King went on. “Your chums told me about that, and I do not
believe it. No boy would go to sleep sitting up, with fifty thousand
dollars in treasury notes in his lap. That’s too thin.”

“All right! You don’t have to believe it.”

“Besides, who is there that knows you have the money, except me and the
two Mexicans? Don Durand ran away without waiting to see what became of
the belt, so he doesn’t know, and the Mexicans, who do know, and who
told me, have been in my company nearly ever since, so they didn’t get
it. You may as well tell me the truth. It will save time.”

“I have told you the truth, but you may keep on mussing up things if you
want to. You’ll get your pay for it some day!”

“No threats, please! I rather like you boys, and I’m sorry you got mixed
up in this affair. I’ll do the best I can for you, but I must have that
money! Also, I must have that belt. There are papers in it which I need
in my business. Get up and get the money and belt!”

“If I could,” Alex replied, “I’d throw them overboard before I’d let you
have even one look at them! Where are Clay and Case?” he added.

“I’m sorry for that, too,” King replied, “but I had to drop them off on
a little sand heap not far away. They cut such annoying pranks that I
had to do it. I have the boat anchored, you see, and you may run back
and get them as soon as I get the money and the papers.”

“What papers?” asked Alex, innocently, as if he had never heard of the
queer documents before. “What you talking about?”

“The papers that were in the handbag,” King replied, patiently.

“They were in the belt when it was stolen,” Alex answered, telling the
exact truth, but saying nothing of the copies he had made, and which
were at that moment in an inside pocket of his coat, hanging on the wall
not far from his bunk.

“Oh, very well!” the deputy said, turning to his work again. “You lie
right there while I search the boat from stem to stern. It may take a
couple of days, but I’ll do it right while I am at it.”

Alex watched the deputy turning out drawers and poking under them,
investigating the motor pit, and even moving the provision supply out of
the storage compartments. Anxious as the boy was, it still amused him,
for he knew what a hopeless search it was.

King seemed to think that Alex, deprived of his revolver, would not
attempt interference with his search. He looked over at him now and then
and occasionally spoke to Captain Joe, but for the most part he kept on
with his work of searching the boat. This went on for two hours or more,
until, in fact, a pearl flush crept into the sky.

During all this time the boy had been thinking fast. How was he to get
rid of King? For all he knew, defeated in his search, as he was sure to
be, the officer would run the boat up to Yuma and lock him up on charge
of receiving and concealing stolen property. And, then, Clay and Case
must be having rather a hard and anxious time of it down on the sand
island where they had been landed, at the point of a gun, by the deputy.

Captain Joe seemed to have exhausted his rage, and was now showing his
teeth only when King came near him. The dog seemed to think that if Alex
could lie easily in his bunk and talk with the man who was searching the
boat he had no cause to interfere! Besides, he was tied so securely that
there was no hope at all of his getting free!

Whenever the boy moved uneasily on his bunk King gave an uneasy glance
in that direction. Once Alex tried to get to a revolver which he knew to
be in a cupboard near the rear of the cabin, but King ordered him to lie
down again before his feet were off the bunk.

After a time, when there was more of pink than pearl in the eastern sky,
Teddy climbed up to the bunk and lay down by the side of the boy. He was
preparing to go to sleep when Alex began whispering in his ear:

“Take him, Teddy! Take him! Give him a bath!”

Ever since Teddy’s capture on the Columbia river trip the boys had made
a playmate of him. He had been taught to play leap-frog, and to wrestle
and box. While bathing from the boat the boys had taught him to follow
them into the water, and even to trip and bunt those on deck into the
river if they did not jump in quick enough to suit him.

Alex was now trying to revive the play spirit in the bear in the hope
that he would attack King and try to push him into the river. Not
understanding the game, the deputy would be apt to take alarm at such a
rush as Teddy sometimes made and so give the boy a chance to arm
himself.

The cub sat up on the bunk as Alex talked to him, but did not seem to
understand what was wanted. He put his paws in boxing position as he had
been taught to do, and invited Alex out on the floor to have a bout with
him! But this did not help at all!

“Tip him over, Teddy! Tip him into the river!” Alex whispered.

Teddy paid no attention to the order, but continued to invite a boxing
contest, much to the disappointment of the boy. While this was going on
a long call from down the stream reached Alex’s ears. That was Clay or
Case. They were getting tired of their enforced residence on the island
and were asking how much longer it was to continue.

Teddy ruffled his ears at the sound of the familiar voices and King
stood up to shout an answer back. It was a taunting answer, too, and the
boy in the bunk came very near springing out and taking his chances in a
hand-to-hand combat with an armed man!

The prow of the boat was up stream, as the anchor cable led from that
part of the craft, so the aft deck was nearer to the island where the
boys had been landed than the bow. Besides, the bulk of the cabin was
between the deputy and the island. Desiring to urge upon Clay and Case
the necessity of delivering the money and papers to him, King stepped up
on the cabin roof and entered into conversation with them.

An hour before the deputy would not have done this, but now he was
becoming a trifle disheartened. He had gone over the boat pretty well
and had found no trace of what he sought. The stories told by the three
boys agreed, and he began to wonder if they were not the truth. He was
inclined to be friendly and, once convinced that the boys were not
deceiving him, he would have treated them with every courtesy.

At last Teddy appeared to understand that it was to be a game of
hide-and-seek in the water, and bounded off the bunk. King was standing
on top of the cabin, making a trumpet of his hands, talking to the lads
he had marooned down the river. That was an old pose. The boys had often
stood erect on the roof and derided each other’s swimming efforts.

When the bear came out on the deck King looked down and yelled savagely
at him. This was still a part of the game, too, for the lads often
taunted the cub and then sprang away from him and plunged into the
river! So, when the deputy called down at the bear, the bear sprang at
the deputy, caught his sharp teeth into one trousers leg and promptly
and deftly pushed and pulled him off the roof and into the river, where
he rolled him under a couple of times and swam away, around to the other
side of the boat.

Alex was out of his bunk the instant he heard the splash. King was
spluttering out great threats when the boy ran on deck with the revolver
he had taken from the cupboard.

“Taking an early bath?” shouted Alex derisively, as he showed his
weapon. “Don’t come too close to the _Rambler_! You can’t come aboard.”

King came to the surface again and, ejecting muddy water from his mouth,
shouted back.

“If you’ll assure me that the money is not there—”

Teddy swung around from the other side of the boat and ducked him.

Alex went to the motors and set them in motion. Then he called to the
cub. Teddy was having the time of his life playing with the angry and
half-drowned deputy, and did not respond.

Alex put the boat in motion and called back to the cub:

“Go it, old top! If you want to drown, stick out there!”

The boys had acquired such a habit of talking to the bear as if he were
a human being that Teddy actually understood a good many things that
were said to him. Still, it was not the words but the departure of the
boat which now brought him away from the officer.

King followed the cub as he swam toward the boat. The boy motioned him
to remain away, and added that if he wanted to save his strength he
might as well head for the nearest shore, which was something like half
a mile away at that point.

“But I can’t swim that far!” came back from the water.

Alex threw out a life preserver and shouted back:

“Float down, then, and kick in as you go along!”

King seized the life preserver and headed for the shore, while the boy
devoted his energies to getting Teddy on board and running the boat at
full speed down the river without hitting any of the shoal places shown
by the ripples to be dangerous. In a very short time he came to the sand
island where Clay and Case were.

He threw down the anchor, just below, and stood on the prow making faces
at his chums until they threatened to maroon him the first chance they
got! Captain Joe was now making a great clamor with his chain and Alex
released him. The dog was instantly in the water, swimming to the boys,
now wading out toward the _Rambler_.

“You’ll have to swim!” Alex shouted, in a moment. “I can’t come any
closer to you, and we’ve lost the rowboat, as you know!”

“We can’t get any wetter than we did swimming over to the island,” Clay
grumbled. “Where is that deputy from Phoenix?”

“Making for the shore!” laughed Alex. “Teddy Bear dumped him into the
river and I sent him off with a life preserver.”

“I’d like to have sent him off with a sore head!” Case muttered, as he
climbed up on the deck, his teeth chattering. “He sneaked on board from
a passing boat and got the drop on us or we wouldn’t be here!”

“He thought he was in the line of duty,” Clay put in, “but it was rather
tough on us. We never saw him until he had us covered!” Did he find
anything he wanted on board?”

“Not a thing!” Alex replied. “All he got was a bath!”

“I’m going to buy a ton of honey and present it to Teddy, with a set of
appreciative resolutions!” Clay declared, as he followed Case to the
deck. “There never was a bear that had such sense!”

The sun came out hot and red, and the boys kept under the shelter of the
cabin as much as possible that day, still they kept the motor boat
running at good speed. They talked over the loss of the money many times
but were unable to reach any logical solution of the puzzle.

That night they anchored within sight of Yuma, Arizona. Clay declared
that Alex was too much of a sleepy head to be trusted to keep watch, and
so resolved to stand guard until midnight and then awake Case.

But Case was not called, and at daylight Clay was nowhere to be found!




CHAPTER IX.—ANOTHER GUEST FROM THE RIVER.


Clay, after Alex and Case were asleep in their bunks, sat out on the
forward deck playing with Teddy and informing him what his opinion of
him was! The cub appeared to understand the compliments paid him, but
Captain Joe looked like he was being overlooked in the allotment of
honors for the events of the day. Clay only scolded him for not uttering
a warning when King came on board.

The lights of Yuma shone in the distance, and now and then the rush and
roll of a Southern Pacific train stirred the air, but for the most part
it was very still, except for the murmur of the river, where the
_Rambler_ lay.

The happenings of the day had been so remarkable that Clay’s head almost
ached as he tried to place them in orderly array for deliberate
consideration. The larceny of the money troubled him most, and a good
deal of his thought was given to the mystery of the taking.

He had taken a fancy to Don Durand, and did not like the idea that
further trouble might come to the lad through a member of the _Rambler_
company. Don would certainly appear, in time, and claim the money. What
was there to say to him? Would he believe the naked truth when it was
told? Clay was sorry to conclude that he would not!

While the boy worried over the situation, a light showed on the the city
side of the river, such a light as might have been made by the flare of
a match. Clay watched the point from which it had shown with lazy
interest. The person who had struck the match was probably some tramp,
he concluded, some vagrant loitering there in the hope of finding a
lodging for the night on board the boat.

Directly another match was struck. This time it was swung in a circle
until the flame was extinguished by the light breeze which was blowing
from the west. Clay began to take a greater interest in the matter, for
it seemed that the person on shore, whoever it was, was attempting to
attract his attention.

There was no moon, but the stars were out, and the boy knew that the
bulk of the _Rambler_ could be quite distinctly seen from the shore. The
display of light, he thought, might be either a salute to those on board
or a signal to some one on the bank. Curious as to what it really did
mean, he resolved to sit still and await developments.

It had been an exciting day, and the previous one had been more exciting
still. The most unexpected events had happened since the _Rambler_ had
come within sight of the Colorado river. The boy was weary of the
complications which had been forced upon his companions and himself, and
anxious to be away on stretches of river where there would be only the
great facts of Nature to deal with, still his natural curiosity held his
attention to the vagrant light on shore.

Half a dozen flares were shown, and Clay began to consider the
advisability of responding to them. He put the notion aside for a time,
and then, the signals continuing, he got out his searchlight and sent a
circle of light toward the shore. Then a boyish voice called out:

“Hello, the boat!”

“That’s not a sailor,” thought Clay, showing his light again. “A sailor
would have shouted ‘Ship ahoy!’ Now, I wonder what the fellow wants, at
this time of the night?”

Again the voice came out of the darkness:

“I want to come aboard. Can you send a boat after me?”

“We are not at home to-night,” laughed the boy, amused at the impudence
of the fellow. “Besides,” he continued, “we have no boat. If you want to
see me, you must swim the river.”

This dubious invitation was accepted almost before the words were out of
the lad’s mouth, and Clay heard a quick splash in the water. Directly
heavy and labored breathing told him that the visitor was nearing the
boat, and that he was having a tiresome time on his journey.

Presently the light of the stars showed a head bobbing on the surface of
the water, not three yards away, and Clay turned his light in that
direction. It revealed only a head of tow-colored hair and a pale,
distressed face, with eyes strained and anxious from over-exertion. Then
a pair of thin, boyish shoulders lifted above the water.

“It is only some kid seeking adventure,” thought Clay, tossing down a
rope. “I’ll take him on board long enough to give him a rest, then he
can swim back to the shore. Here, kid!” he went on, “take hold of the
rope’s end and I’ll draw you out of the moisture!”

With the assistance of the rope and the strong arms at the boat end of
it, the visitor was soon on deck, sitting flat and leaning against the
railing, as if every ounce of strength had been used in the swim from
the shore. Clay’s light showed the stranger to be a boy of not more than
fourteen years—a ragged, hungry-looking boy!

“Gee!” the boy panted, after a time, “I reckon I’m all in!”

“What did you do it for?” asked Clay, wondering if the boy really was as
hungry as he looked and wondering, too, if he could feed him without
waking the sleepers in the cabin.

The boy did not answer the question, but sat looking over the boat, as
if trying to search out some familiar feature or face.

“You might be a fish,” Clay said, “the way you come up out of the river
at the end of a rope. What do you want?”

The visitor leaned weakly back against the railing and shut his eyes as
if too tired to keep them open. Clay watched him curiously for a moment
and started for the provision box at the back of the cabin.

“I know what you want, first of all,” he declared, turning and speaking
in a low tone. “You want a square meal? What?”

“That’s the answer!” said the other, opening his eyes. “That’s it.”

“Why didn’t you say so, then?” grumbled Clay, hustling to the provision
box and bringing out cold baked beans, bread, fried fish, and a huge
piece of pie. “Get busy, now!”

The boy needed no second bidding. He stowed away the victuals in a way
highly satisfactory to his host, and looked up with a grin on his thin
face.

Clay removed the dishes and sat down by his side, but just then Teddy
came nosing out of the cabin and invited the boy to box with him. In a
second the kid was on the railing and half over into the water. Clay’s
voice was shaking with laughter as he reproved the cub and pulled the
boy back on the deck. Teddy walked away on his hind feet in offended
dignity.

“You shouldn’t mind a little thing like that!” Clay laughed. “You’d get
used to seeing things if you sailed on the _Rambler_ long!”

“Then this is really the _Rambler_?” asked the other.

“Sure it is! Where did you ever hear of the _Rambler_? What’s your name?
How long have you been growing that appetite you just had on exhibition?
It was a corker, if anybody should ask you!”

“My name is Tom, and I’m from Chicago, and I’ve been without food for
fourteen weeks, if you want the truth!”

“Hunger doesn’t seem to affect your imagination!” Clay suggested.

“Well, I don’t know how long it has been since I had a square meal like
that! I invaded a free lunch counter yesterday morning, but the brute of
a barkeep tumbled me out into the street.”

“Did you walk from Chicago?” asked Clay, after a moment’s silence.

“I rode the rods,” was the reply. “I’m all stuffed with sand. I’ll turn
into stone, like Arizona wood, in about three weeks.”

Clay regarded the boy curiously. He spoke gravely, saying odd things as
one might repeat a lesson at school.

“Tom?” he said, then. “What else besides Tom?”

“Durand—Thomas Jefferson Durand! My parents gave me a long name because
it didn’t cost them anything, and they had nothing else to give me. I’ll
bet the first Thomas Jefferson wouldn’t look so dignified in his
pictures after he had rode the rods from Chicago! Would he, now?”

Clay did not reply, for he was wondering if this Durand and the Durand
he had been thinking about that night were brothers. It would be a
strange coincidence if they were! This Durand seemed to know about the
_Rambler_! Perhaps, in some mysterious manner Don had warned him to wait
for the boat as it passed up the river and ascertain if the fifty
thousand dollars had been safely taken out of the sand levee!

This was a disquieting thought, for the money was gone! Clay decided to
learn the truth immediately, so he asked:

“Where is your brother Don? Have you seen him lately?”

Tom winked his eyes and pulled at his tangle of tow-colored hair.

“Do you know Don?” he asked. “When did you see him last?”

“So he is really your brother?” demanded Clay, feeling that the hour of
settlement for poor Alex was indeed close at hand.

“Sure he is!” was the reply. “He’s out in the desert somewhere. He
snatched a lot of money in Chicago and got away with it. So he isn’t in
any of the society columns just now. He’s supposed to be in retreat!”

This looked a little better, but Clay kept on with his questions.

“Where did you learn about the _Rambler_?” he asked. “How long have you
been waiting here for us? Who told you to wait?”

“Don did,” was the quiet reply. “He said he’d wait farther down the
river. We’re going up the Colorado with you—so Don says!”

“So Don was here recently?”

“Indeed he was, and told me to wait. He came over from Phoenix on a run,
with a thousand deputy sheriffs after him. He got a boat and went down
the river to meet you. Did he find you?”

Clay did not answer the question. Instead he asked one.

“So you both thought the _Rambler_ would be a good place to hide?”

“Of course we did—to hide in and also to travel on! We know all about
the _Rambler_. The Chicago newspapers wrote you up, you and the boat. We
read all about the Columbia river trip, and all about the trip you were
ready to take on the Colorado, so, as we wanted to get up into the
canyons, we decided to go with you.”

“What are you going to the canyons for?” asked Clay, thinking of the
mysterious papers Alex had discovered in Don’s belt. “Are you both going
there to hide until the trouble blows over?”

“When we come back from the canyons,” Tom declared, with a weak grin,
“J. P. Morgan won’t have a thing on us! You see!”

“Money up there?” asked Clay, shortly, resolved to draw the boy out.

“I’m not going to tell you what there is in the canyons,” was the reply.
“Say,” Tom went on, “what do you know about fifty thousand dollars in
treasury notes? Ever hear of such a wad as that?”

Clay imagined the truth would have to be told then, but he thought best
to put off the evil hour as long as possible, so he said:

“We saw Don down the river, but a deputy chased him away into the
mountains. Probably he’ll manage to find us again before long.”

“He was hungry, wasn’t he?” asked Tom, with a wink. “He gets awful
hungry sometimes! He’s been out in the desert a long time.”

“Yes, he was some hungry,” Clay replied, with a laugh. “We fed him up on
pancakes and honey, and he seemed to like them.”

“You bet he did. He’ll find you again if you remain here a day or two.
He’s going up the Colorado river with you. What’s your name? Is it Case,
or Clay, or Alex? You see, I know your names!”

“I see you do! Well, I’m Clay, and Case and Alex are asleep.”

“Asleep with the bear and the dog? Well, that’s fine. Only I was scared
when the bear came at me. Now, let me tell you, Mr. Clay. If you stay
here until to-morrow night Don will find you, and we’ll all go up the
river together. He’ll soon be along on some up-river boat.”

Clay was of the opinion, just then, that he would rather not wait for
Don! If the meeting could be delayed, he thought, some way of finding
the money might be discovered. At least he hoped so with all his heart.

While the boys sat there a river boat came toiling up stream. She puffed
past the place where the _Rambler_ lay, dark, and drew up at a little
pier some distance up the river. Tom pointed to a number of passengers,
outlined against the pier lamps, who were leaving the boat for the
shore, and suggested that his brother might be one of the number.

Clay hoped that he was not, and did not consider it probable that he
was, for it did not seem likely to him that the boy would venture out
into the open with King so eager on his track. Presently the clamor at
the pier died out and the night was still again. Tom huddled closer to
Clay and pressed a folded paper into his hand.

“Have you ever seen anything like that?” he asked, shivering.

Clay sheltered his electric and opened the paper. Then he was silent for
some moments. He wanted to think out this new complication.

The paper showed two rude drawings, duplicates of those which he had
seen on the papers taken from the belt! There were the “X” and the
sunburst, surrounded by letters and figures! The boy was puzzled.

“What do these drawings mean?” he asked. “Where did they come from?”

“Don got them out of Trumbull’s handbag,” was the evasive reply. “He
stole them! That is, he stole the originals. It was the papers he sought
when he stole the handbag. He did not know that the fifty thousand
dollars were in the bag when he took it, but he kept the money, just the
same, and will restore it to its rightful owner as soon as he finds
him.”

This was another phase of the matter! The larceny of the money was only
incidental! The mysterious drawings were the important things. Then Tom
went on to state that the series of drawings was not complete, that
there was one missing, without which the others were worthless, and that
one could be found in an old house at Yuma, which accounted for the boys
making that city their objective point in leaving Chicago! Clay thought
he saw a chance to recompense Don, in a measure, for the loss of the
money.

“Do you know where this old house is?” he asked, in a moment.

Tom said that he did, and for a long time the boys discussed the
advisability of making the search for the third paper that very night.
Clay was anxious to do so, for reasons already known, and at last Tom
consented, saying that it would be a short trip.

And at daybreak, when the boys awoke, the two had not returned!




CHAPTER X.—THE OLD HOUSE BY THE RIVER.


“Perhaps,” Clay suggested, as the two were about to leave the _Rambler_
for the proposed visit to the old house where the third paper was
believed to be, “it might be well to awake Case, so the boat will not
remain without a guard. How long will it take us to make the visit?”

“Not longer than a couple of hours,” was the reply. “We ought to be back
here before midnight. The house is close to the river.”

“Why didn’t you get it before you came on board?” demanded Clay.

“I was afraid to go there alone in the dark,” was the frank reply. “I
could see more than ten million ghosts every time I thought of it.”

“Pretty vivid imagination you have!” laughed Clay. “And now,” he went
on, “how are we going to get ashore without getting wet? The first thing
I shall do in the morning will be to buy a small rowboat.”

“I’m wet now,” Tom grunted, “and I can swim ashore, hire a boat, and
come out after you, if you have the price! I haven’t seen a cent of real
money since the birth of Adam!”

“Exaggeration seems to be your failing,” Clay laughed. “Well,” he
concluded, “you may go and get a boat if you care to, and can. But don’t
bring a boatman with you. We don’t want any one to know that the
_Rambler_ is unguarded. It seems a pity to awake the boys, so we’ll take
the risk of leaving the boat alone for a time—alone with Captain Joe and
Teddy on guard!”

“The dog ought to guard the boat, all right,” suggested Tom.

“He usually does, but twice lately people have come aboard without any
warning from him. One was Don, your brother, and the other was King, the
deputy in search of your brother. However, he may keep awake to-night,
and awake the lads if any one comes sneaking around.”

Tom reluctantly took to the water again, and soon returned with a small
rowboat which he had rented from an all-night fisherman. Instead of
entering the boat at once, Clay called the boy on deck and handed him a
suit of dry clothes. The garments were much too large for the slender
youth, but they were preferable to the wet ones he removed. Then, taking
two electrics and two automatic revolvers, the two rowed to the shore,
secreted the boat in a little slip, and set out for the old house by the
river.

“Now,” Clay observed, as they walked along, “you might tell me something
about those papers. What do they stand for, and why are they scattered
so widely? Is there any one on earth who can read them?”

“The papers,” replied Tom, “refer to a locality in one of the canyons of
the Colorado river. We don’t know exactly what it is they stand for. We
have been told that our fortune lies there, and so we are trying to get
it. It may mean gold, diamonds, copper, silver, or good advice! We never
will know unless we get the third paper and go look for the thing which
lies behind the big ‘X.’ It is a long story.”

“In one of the canyons of the Colorado river?” repeated Clay. “And that
is the reason you two rascals decided to take passage on the _Rambler_!
You expect us boys to take you up to your fortune?”

“We shall pay you for the trouble, you know,” falteringly.

“But suppose you don’t find anything of value there? Suppose the
suggestion you recently made about good advice is the correct one? How
are we to get our pay, then?” asked Clay, with assumed gravity.

“Then we’ll pay you in good advice,” was the quick reply. “The good
advice will be not to take tramp boys on board your boat on the strength
of any plausible fairy tale they may tell you! How’s that?”

“Where did these mysterious papers originally come from?” asked Clay,
without replying to the last question, but smiling at the quick humor of
the other. “Who unloaded them on you boys?”

“Uncle David Durand,” was the reply. “He was a sort of a hermit, and
lived in the Grand Canyon for a long time, all alone, after we left him.
I guess he lived on the fish he caught and his grouches! Every time I
saw him he had fish scales on his vest front and a three-cornered grouch
under his crust. He left the papers to us as an inheritance, with the
warning that we'd have a beaut of a time finding our fortune! We are
having all of that!”

“But you said Don stole the papers. What about that?”

“This man Josiah Trumbull stole the two first. This Josiah is a crook.
He lived with Uncle David for a time, trying to worm his secret out of
him, but did not succeed. Then he salted a mine and sold it to a friend
of David’s for $50,000, and got out of the country, with the officers
close behind him. That’s the $50,000 Don took when he stole the handbag
to get the papers.”

“And you don’t know where this location is?”

“No more than a rabbit! We think it is near where Uncle lived, but we’ll
find out when we get the third paper. That gives the clue to it all.”

“Who put it in the old house where we are going to look for it?”

“A paper in Trumbull’s bag located it there, that’s all I know. Don was
to get it when he reached Yuma, but King was too hot after him. The boy
will be glad to know that we unearthed it—if we do.”

“It seems to me to be about as clear as mud!” Clay exclaimed, and you’ll
have to tell me about it at some other time. Do you see the old house by
the river yet? We have been quite a time on the way.”

“It is there,” answered Tom, pointing. “You can see the roof from here.
It is an old derelict, formerly occupied, ages ago, by Uncle David, now
mostly given over to rats. I stood here a long time before I saw your
boat and heard your voices, wondering if I had the courage to go in
there alone without a gun or a light. I found that I hadn’t, and so went
scouting along the river, looking for you.”

“Rats!” repeated Clay. “You say the old house is mostly given over to
rats? Is that what you said a moment ago?”

“It surely is,” replied Tom. “Rats own the place now.”

“Must be a peculiar kind of rats that carry a lantern,” Clay observed.
“If you look you’ll see a light passing from window to window.”

There surely was a light passing from side to side of a large room which
faced the street. There were no sash in the window openings, and the
large front door hung on one hinge. Taken altogether, it was as
dreary-looking a structure as one would be apt to come across.

The boys made no attempt to enter the house by the front door. Instead,
they passed around to the west, or river side, and vaulted through an
open window which lighted a room back of the one in front. The river ran
close to the foundation wall on the west, and eddied about under this
window, proclaiming an unusual depth of water there. The house stood in
a hollow, lower than the river, but protected by the raised bank.

Listening for sounds, watching for lights, Clay and Tom stood by the
window opening a long time without hearing or seeing anything worthy of
note. There was only the murmur of the waters and the uncertain light of
the stars. After a time Clay whispered:

“Where is the paper you came here to find?”

“It is supposed to be in an old cupboard in the cellar,” was the reply.
“It is enclosed in a wallet with other documents. I’ll show the way, as
near as I can without having been over the ground since I was a little
chap.”

“But why—”

Clay cut the sentence short, for he realized that that was no time or
place to ask questions regarding the motives of the person who had
placed the paper in such a place. Besides, he believed that the person
who had shown a lantern was still in the house. Directly a creaking on
the cellar stairs confirmed this opinion.

Followed by Tom, who was actually shivering with fright, he crept to the
head of the cellar staircase and looked down into a dark passage. But
while he looked a light sprang out and King’s face was revealed. The
deputy was digging with a shovel in one corner of the cellar!

The cupboard Tom had mentioned was close to the stairs, and Clay decided
that he could get to it while King worked with his shovel, seize the
wallet, and get out of the house without being seen.

But King, while industrious, was always watchful. Time and again he
lifted his lantern and glanced keenly around the place.

Clay started down the steps several times, but always drew back, for the
least noise attracted King’s attention. The boy had no idea how the
deputy had reached Yuma so soon after being put off the _Rambler_, or
why he was digging in the old house, but all this was of less importance
to him than the recovery of the paper said to be in a wallet in the old
cupboard, which stood in plain sight from where he crouched, near the
head of the stairs. At last King picked up his lantern and began looking
in an other and more distant corner of the cellar.

Then the boys moved down the steps, gained the cupboard, and threw the
door open. Three shelves were revealed, each one covered with a
collection of miscellaneous articles and dust. There were cracked
dishes, broken knives and forks, unknown things tied up in brown paper,
and scores of such articles as a miserly man or woman might store away,
not having the heart to discard them utterly. And there was the wallet!

Clay seized it eagerly and thrust it into a pocket. Then, as he reached
up to make an investigation of an article on the top shelf, his foot
slipped and he came near falling.

He would have fallen only that he clung to the shelf for support. But
the shelf was not stable, for his body swayed back as he clung to it,
and then he saw the entire interior of the cupboard swing out! The
displacement of the woodwork revealed an opening in the west wall of the
cellar, against which the cupboard stood.

Standing back of Clay, Tom saw King lift his lantern and move toward the
stairway. If he came on discovery was certain, so the lad pushed his
companion on into the dark opening and followed him.

At first Clay resented the action, for the place beyond the opening was
dark, and damp gusts of wind sighed out of it, but at a whispered word
from Tom he groped in and made way for his companion. The light of
King’s lantern flashed almost in their faces as they turned to look out
into the cellar again.

King was advancing toward them, so Clay reached out and softly drew the
shelves toward the wall. There was a sharp snap, as of metal meeting
metal, and then all was dark and still.

Clay brought out his electric and flashed it around the place. It was
just a dungeon cut off from the cellar on the river side. The walls were
of stone, and the ceiling was of iron. Through the wall on the west the
murmur of the river could be heard.

“Looks to me like a miser’s vault,” Clay whispered, as he swung his
electric around. “You say your Uncle David lived in this house once?”

“Yes, but that was a long time ago. He owned it at the time of his
death, and, the people of Yuma say, used to visit the place once a
year.”

“He might have stored gold or silver here,” Clay suggested. “This den
wasn’t prepared to keep vegetables in!”

Tom went to the door and listened, having no answer to the supposition.
He could hear King moving about in the cellar, and finally there came a
tap on the door, which, the boy saw, was covered with a plate of rusty
iron. Then a voice, muffled by wood and metal, came to his ears. It was
King speaking and his tone was one of triumph.

“Good-night, boys!” the deputy said. “You are welcome to all you find in
there! I’ve been over every inch of it! Good-night. I’ll see that you
remain there for a time!”

“We might starve to death here, and no one would ever know!” Tom
complained. “I knew Uncle David had such a hole as this, but I never
thought I’d be locked up in it!”

“How do you think King found out about it?” asked Clay.

“There must have been papers Don didn’t get with the handbag,” was the
reply. “I don’t know! He found out, anyway, and so did we! I suppose we
are about nine thousand feet under the surface of the earth!”

“Make it a good one while you are at it,” chuckled Clay.

“How are we ever going to get out?” asked Tom. “I’m afraid down here in
this musty hole! I always was afraid in the dark. I see ghosts in every
shadow! Guess I was born that way!”

“We’ll have to dig out,” Clay answered. “We’ve just got to get back to
the _Rambler_! What will the boys think?”

“Think we’ve run away, I presume.”

“Then you’ve got another presume coming! They’ll think we have been
abducted and killed. So many strange things have occurred lately that
they have a right to think almost anything! It is after midnight now,
and I was to awaken Case at that time and go to bed.”

“We’ll both go to bed in the promised land, I guess!” Tom declared,
gloomily. “I don’t see how we’re ever going to dig out of here!”

“If you’ll cast your mournful eyes over into that corner,” Clay said,
“you’ll see a shovel, or a spade, or some digging implement King must
have left here. I reckon we can do something with that! Do you get me?”

“I never knew that a shovel could dig through stone or iron,” observed
Tom, still despondent. “You’re just trying to think you can dig out.”

“Son,” chuckled Clay, “these stones are laid on solid ground. I don’t
know how deep the foundation runs below the bottom of the cellar, but,
no matter about that. We’ll dig down until we get under the wall, and
then the stones will come tumbling down and we’ll walk out—to the
confusion of King and the great delight of the boys and Captain Joe and
Teddy.”

“I’d like to know how King got up here,” Tom muttered, as Clay took up
the shovel and set to work. “You said he was down the river.”

“He won’t stay put,” said Clay. “He probably attracted the attention of
a steamer crew and came up ahead of us. There! Look here,” he added.
“The foundation is on a level with the bottom of the cellar. I’ll have
this wall tumbling in no time. Then for the _Rambler_ before daylight.”

Clay dug away manfully, and the great stones of the wall soon began
sagging down. Directly there was a line of light just under the sill of
the house.

“Now we’ve got it!” laughed Clay. “Here’s light and fresh air. The moon
must have come up after we came down here. See how light it is! A few
more minutes, and we’ll be out of here and on our way!”

Quite a section of the wall now fell in, so that Clay had to make quick
motions in order to avoid being crushed by the great rocks. Still there
was insufficient space at the top to permit of their passing out.

Clay mounted the fallen stones and tried to work his way through, but
found that he could not do so. When he stepped down and took up the
shovel again he found himself standing in water!

The excavation he had made had connected with the river, and the cellar
was being flooded!




CHAPTER XI.—ALEX GETS HIS RECEIPT.


When Alex and Case awoke at daylight and discovered Clay’s absence, they
began a search of the shore with their glass, supposing that he had gone
into the city for supplies. Then Alex discovered the remains of Tom’s
supper, and Case came across the clothing taken off by the lad. The
clothes were still wet.

“There’s something queer been going on here!” Case exclaimed. “Clay had
a visitor who swam out to the boat last night!”

“And the guest had supper here!” Alex contributed. “And Clay must have
gone away with him. Wonder he wouldn’t have awakened us before leaving
the boat!”

While the boys cooked breakfast, discussing the remarkable disappearance
of Clay as they did so, a boat bumped against the prow of the _Rambler_
and a voice called out:

“Hello, there! Where’s my rowboat?”

Alex, leaning over the railing, saw a swarthy face looking up at him.
The fellow seemed to be angry for he was swearing and gesticulating
wildly.

“If you think I’ve got your boat you may search me!” the boy said.

“But you got it last night!” insisted the other. “You rented it for an
hour and never brought it back. What have you done with it?”

“Guess again!” Alex replied. “I slept all night. Never saw your old
boat. It was some one else who rented it.”

“Well, the boy who got it said he wanted to bring a friend off this
boat, and that he would return it before midnight.”

“You’ve been buncoed!” Alex laughed.

“Wait a minute,” Case broke in. “There may be something to this. You say
a boy got a boat of you to row out to the _Rambler_?” he asked of the
man, now getting ready to board the boat and make physical trouble for
the boys.

“That’s what I said. Where is that boy now?” “What sort of a looking boy
was it?” asked Case, patiently.

“A little bit of a chap. He was wet as a rat, and said he had swum off
this boat and wanted to row out to bring a friend off.”

“Well, did you watch him after he left with the boat?”

“Yes, and he came out here; and then another boy got into the boat with
him and they rowed ashore. I want my boat or good pay for it—right now!”

“If you come up here with your threats,” Alex declared, “you’ll get a
rap over the head—and I’ll set the dog on you!”

“I’ll have you all arrested!” shouted the other. “I want my boat.”

“Sing it!” chuckled Alex. “You might make a fine song with that ‘I want
my boat’ story of yours. Have you looked along the river bank for it?
The boy might have left it there.”

“I have not,” was the reply. “It is up to you to return it, and not my
place to look for it. That boat was worth $50 of any man’s money.”

“Will you wait a moment, please?” Case asked of the boatman, as he drew
Alex to one side. “I may want to go to shore with you before long.”

The other nodded and stood angrily in his boat, waiting.

“Now,” Case explained to Alex, “there is no need of making an enemy of
this man with your impudent talk. He is probably right. Some one swam
out here, had supper, swam back and got a boat, and took Clay to the
shore. Now, who could it have been? This beats me?”

“Couldn’t have been Don, could it?” asked Alex, doubtfully.

“I’m all at sea,” Case replied. “I don’t understand how Don could have
got up to Yuma, and yet I’m half inclined to believe that it was he who
took the money, though why he should have done so without letting us
know is more than I can figure out.”

“There’s no head or tail to this business,” Alex declared. “We’re all
mixed up with other folks’ troubles, just as we were on the Amazon and
Columbia river trips! Are you going ashore with this man?”

“Of course. I’ve got to find out, if I can, where Clay went.”

“Of course we’ve got to do that.” Alex agreed, “but don’t you go to
mixing with any one else!

Bring Clay aboard and we’ll fly up the river like little birds! I don’t
want to see any one else for a month! The river and the mountains and
the canyons will do for mine!”

“That’s just the way I feel about it,” Case replied. “I’m tired of
mixing in affairs that don’t concern me. I want to get up the river and
be let alone. I hope Don will find his money, but I’m not going to
bother my head any more about it.”

“That’s me!” Alex agreed. “You go ashore and get Clay. He’s not far off.
Take Captain Joe with you. He will follow the boy’s track from the place
where he landed. And when you get Clay, make a run for the _Rambler_!
Don’t stop, even to pick up money, until you get on board, then we’ll
shoot up stream like a shark after a pig! No more of this for me.”

So, after further talk, Case went ashore with the boatman, and Alex got
out his automatic and sat watching the river bank. Teddy stood up on his
hind legs and invited the boy to a boxing match, but he was too blue and
too anxious to play with the cub.

“I wonder if Don did get that money?” he thought, over and over again as
he sat watching the shore. “If he did, why didn’t he let me know that he
was taking it?”

He could find no answers to his questions, so he studied the shore of
the river where the town loomed up and wished from the bottom of his
heart that his friends were on board, and that the _Rambler_ was a
hundred miles away from King, Don, and all the rest! Then he heard a
hail from the river and ran to the prow.

A small boat lay rocking in the current, and out of it looked the
grinning face of Don Durand! Alex almost dropped over the side in his
amazement. Now that the boy was before his eyes, however, he was
unaffectedly glad to see him.

He tossed down a rope end so Don could secure his boat to the rail of
the _Rambler_ and, later, gave him a helping hand. When Don gained the
deck he received a cordial greeting.

“Can you get me out of sight, quickly?” the boy asked. “King is in Yuma,
‘and he’s goin’ to get me if I don’t watch out!’”

“Of course I’ll help you,” Alex answered. “I don’t like your ways, but
I’m sore on King. He came on board and mussed up the furniture and tied
up the dog, and marooned Clay and Case on a desert island!”

“That must have been nice!” Don grinned, going to a heap of pancakes
which had been cooked for breakfast and left to grow cold because of the
excitement of the time. “I’m going to eat these few dozen pancakes while
you converse!” he added. “Why don’t you like my ways?”

“Eat away!” Alex returned. “You’re always hungry when you come on board
the _Rambler_. “I’ll get you coffee in a short time.”

“There’s nothing to eat in the desert,” Don said, stuffing his mouth
with cakes. “Besides, I’m going to board with you all the way up the
Colorado, so I may as well begin now to make you acquainted with my
appetite. But you didn’t tell me why you don’t like my ways.”

“Why didn’t you let us know you took the money?” asked Alex, at a
venture, almost trembling as he awaited a reply.

“Didn’t you get my receipt for it?” asked Don. “It was on the silk
wrapper. I wrote in there! Where is the wrapper?”

Alex took the silk from a pocket and examined it. Surely enough, there,
on the edge, were the words: “Received contents. Don.”

“Why, you old fraud!” shouted Alex, overjoyed at the discovery. “You old
river thief! Why didn’t you wake us up and tell us you were after the
money? You’ve made us a lot of trouble!”

Don grinned and continued his work on the cakes, and Alex finally put
the coffee pot over the coils and made him a cup of hot drink while he
told of running across the point and floating down to the _Rambler_ on a
plank he found in the water. Alex grabbed him, then, and demanded to
know where the money was.

“Let go!” yelled Don. “I’ve got it in my belt, and I didn’t want any one
but you to know I took it because I didn’t want the others to know where
it was, if anybody should come on board and ask about it, and, then,” he
went on, with a sly wink, “I made the receipt a little blind because I
wanted to teach you not to go to sleep with fifty thousand dollars in
gold notes lying in your lap! That was careless of you!”

“The notes were in the silk covering, in my pocket,” insisted the boy.

“Well, perhaps they were, at one time, but Teddy was about to
investigate the package when I crawled up out of the water, off the
plank I’d floated down on! Now, tell me about King coming on board, and
what he did and said.”

“He must have landed on the _Rambler_ from a small boat dropped off a
river steamer,” Alex answered, still so pleased with the news that the
money was safe that he could hardly talk straight, “and he came in the
night.”

“And no one saw him? What about the dog’s giving an alarm?”

“We have figured that out. King had been on board before, and had been
treated kindly, so the dog probably thought he had a right to come back.
But he insulted Captain Joe, after he got on the deck, for he tied him
up. He won’t get on here again right away. Joe will eat him up if he
tries to.”

Then the boy told of the manner in which Teddy had gotten rid of the
unwelcome visitor, and Don began to make inquiries for Case and Clay.
Alex had to tell him about that, too, and Don looked frightened at the
recital.

“The boatman said it was a little bit of a fellow?” he asked. “Then that
was my brother, Tom! I was to meet him here, after King got out of the
way. Now, where do you think they are?”

“I don’t try to think any more,” was the reply.

“I believe I know where they went,” Don burst out, in a moment. “They
went to the basement of an old house owned by my uncle, and something
has happened to them to prevent their coming back.”

“If you know where they went, suppose you go bring them back.”

“And run plump into King! Not for mine. You go! I’ll tell you where the
house is, and you can go and bring them back.”

“If King hasn’t arrested them, perhaps I can,” Alex added. “He may have
caught them, you know. Well, where do I go? I’ll make a bluff at finding
the boys, and then we’ll go on up the river. Trouble is too thick down
in this country! Show me where the house is.”

“You see that old tumble-down structure on the river bank, just a little
below the city?” asked Don. “Well, that’s it.”

“What would they go there for?” demanded the other. “More mystery!”

“They will tell you that! Now, while you are gone, I’ll fry more cakes
and get a good breakfast. I’m going up the Colorado with you, you know,
and I may as well begin to make myself useful.”

“You say it well!” returned Alex, but he did not appear to be much
annoyed at the thought of taking on this agreeable passenger.

Alex descended into the rowboat and cast off. Then he stood up,
excitedly, and pointed to the old building Don had designated.

“What’s the matter with the old barn?” he called out. “Get the glass and
look at it. It seems to me to be tumbling into the river.”

“It surely is!” Don cried, looking through the glass. “There’s been
something exciting going on there, and the old house is sliding into the
water. I guess I’d better go ashore with you!”

“No you don’t!” the boy answered. “You’re going to guard the boat while
I find out about this. If King comes on board, set Teddy at him!”

“No one will pick money off me while I’m asleep!” roared Don.

Alex made good time to the shore, but when he reached the little pier
which ran out just south of the junction of the Colorado and Gila rivers
he found a crowd ahead of him. The old house was just below, and the
creaking of parting timbers told of rapid disintegration.

“What is the trouble?” he asked of the first man he met after landing.

“Why, the old Durand place is tumbling down,” was the reply, “going into
the river! It is believed that large sums of money are hidden in the old
miser’s den, and the people are flocking here to see if they can snatch
some of it. Doesn’t look now as if any one would get it!”

“Some of the folks here may be after money,” another on-looker cut in,
“but most of them are watching to see if the boys get out alive. They
say there are two young boys locked up in an iron room down there.”

“How do you know that?” demanded Alex, his heart in his throat.

Before the other could answer the question Case came running up.

“Clay and another boy are in there!” he cried, wringing Alex’s hand.
“They are locked in a deep cellar, with water pouring in on them! If
they don’t drown, the falling walls will kill them!”

“How do you know they are in there?” Alex asked, hoping to find the
story told by the on-looker and by Case an uncertain one, after all.

“King came for help to get them out, when he found the cellar was
filling with water,” Case answered. “He said he had arrested them and
put them in the den for safe keeping. He admitted that his act of
authority might be the death of the boys, and he would have been lynched
if he hadn’t run away. How are we ever going to get them out?”

While they stood there in an excited, anxious group Don came panting up,
wet from a swim from the _Rambler_. Alex began grumbling because the
boat had been left alone, but Don stopped him.

“I heard what they are saying about the iron room,” Don said, “and the
boys being locked in there! I used to know the location of the spring
that opened that door from the cellar, but I can’t think of it now. If I
only could!” he cried beating his forehead with his fists.

The old house was tumbling fast. The thin bank which ran along the river
side was now caving, and the ground around the structure, which was
considerably lower than the surface of the river, was being flooded.
Captain Joe pulled at Alex’s leg, drawing him toward the house!

“I’m going in there to try to find the spring,” Don said, but as the
three lads started for the crumbling old house the officious crowd
seized and drew them back!




CHAPTER XII.—ANOTHER GREAT DISAPPOINTMENT.


At first the incoming water seeped through the bank of the river, under
the surface, as Clay’s excavation had cut almost through the narrow bulk
of earth between the house and the water’s edge. Then, as the
underground current carried earth with it, undermining the bank, the
cellar began to fill from the surface and the line of light under the
sills became simply an aperture for the delivery of water into the
basement of the old house.

“This is getting serious!” Clay exclaimed, as the cellar filled to the
depth of a foot or more. “We’ve got to do something right off or we’ll
be drowned like rats in a trap!”

“I learned once, when a kid, how to open this iron door from the
inside,” Tom announced, “but I have forgotten. We lived with Uncle David
for a time, Don and I, until he became too stingy to buy food and
clothing for us, and one day he showed us all about this treasure room,
as he called it. Don remembered, but I did not. If Don were only here
now!”

Clay turned his electric light on the door, weaving it over every inch
of the iron sheathing and the stone walls on each side.

“If there’s a spring or anything of that kind here, we ought to be able
to find it,” he declared. “Was it down low or up high. You were a little
shaver then, did you stand up in a chair to reach it, or did you bend
down to the floor? You ought to be able to remember.”

“But I can’t!” groaned Tom. “I’m afraid! I always was afraid in this old
house. Uncle said there were ghosts in the cellar! I’ll never get over
my dread of the place—never! What shall we do?”

“Keep poking at everything you see,” commanded Clay, annoyed at the
boy’s attitude. “There must be something to push, or something to pull.
We are certain to find it if we keep on looking. We never came to this
country to be drowned like this! Bet your life we never did!”

“But the water is getting deeper every minute,” wailed Tom. “Oh, I can
fight out in the open, and like it, too, but I’m terrified in the dark
and in places where strength doesn’t count!”

“Courage always counts!” Clay answered. “You just keep on looking for
that spring, or that lever, or whatever it is that opens the door!”

The lads did keep on looking, but the water rose higher and higher. They
could now hear voices outside, though they came dully to their ears, and
now and then a crash came which told of falling timbers.

Clay realized that the foundations of the house were falling in more
places than one, and that the sills and studding were giving way, but he
did not care to inform Tom of this new peril. He knew that the boy was
not lacking in courage, as courage is usually classed, but he also knew
he possessed the same natural antipathy to darkness that the house cat
possesses for water. Probably because of prenatal influences, the boy
was a coward at the present time, though he tried hard not to show just
how hopeless, and frightened, and despairing he was.

“There’s a crowd gathering outside,” Clay encouraged, “and they’ll find
some way to get us out. But we’ve got to keep on looking for the means
to open this door. Why, boy, just look here, will you?”

Clay was pulling at a half-concealed lever which he had found pressed
into a niche in the stone wall as he spoke. It came out slowly and a
stone above it moved as he drew it away from its hiding-place “I thought
I had it!” he cried. “It moves something, but not the door! Queer old
trap, this! Look at it!”

As the lever came out a stone in the wall started from above and dropped
down on hinges, revealing an opening about a foot in size.

The boy held his light to the opening for a moment and then drew out a
thick package of papers. One end of the wrapper had been torn off, and
Clay drew a paper out and looked at the lettering on the back of the
fold. Then he thrust the papers into an inside pocket and looked Tom in
the face, his own eyes staring with amazement.

“What is it?” asked Tom. “What did you find?”

“Government bonds!” Clay almost shouted. “There are thousands of
dollars’ worth in that package! Think of drowning with all that wealth
in sight! Buck up, young fellow! You’ll soon be a rich man!”

“I was in hopes the lever opened the door!” Tom muttered. “I’m not
interested in government bonds just now! What good would a million do us
if they found us dead here on this floor?”

“You give me that tired feeling!” Clay exclaimed. “Keep on looking for
the lever or key which opens the door! Listen! Do you know that voice?”
he added. “That’s Captain Joe, and he’s telling us that he is on his way
to the rescue! Clever old dog, that Captain Joe!”

The boys searched every square foot of the walls, even reaching up to
the ceiling, but found nothing which would open the door. The water rose
steadily, and the voices outside gradually grew fainter.

Now the water was up to their hips, now to their waists, now it came to
their arm-pits, now Tom was obliged to stand up on an old chest to keep
his head dry. All around them the building was falling, but nothing
seemed to disturb the iron ceiling above.

The walls of the cellar were falling, too, in places, but they only
crumpled down in great heaps of stones, leaving no opening through which
the boys might make their way to the free air outside. It was now broad
daylight outside, but the flashlights were still needed in the cellar.

“We’ve got about a minute more!” Clay admitted, as the water touched his
chin. “We’re up against it at last! I’d like to leave a note for the
boys, but it is too late to write one now. Hear Captain Joe out there?
Say, old sport, I believe he is coming nearer! He surely is! Hurrah!”

Then the iron door swung open and, the water being somewhat higher in
the den than in other parts of the basement, a strong current set toward
the east, lowering the flood a foot or more where the boys stood.

First, they saw Captain Joe’s ugly head poking through the water which
filled the doorway. Then Don’s face showed. However, there was a current
setting toward the main basement from the den, and both the boy and the
dog were forced back.

The outsweep of water had lowered the body of it in the den, so that the
boys were no longer in danger of drowning, but they knew that in time
the little apartment would fill again, as the main cellar filled. Clay
took Tom by the shoulder and pushed him to the doorway.

“Dive through!” he said, “and when you get out into the cellar make for
the stairs and climb up. This old shack will be afloat in no time!
Hurry, now! Perhaps Captain Joe will help you if you tumble down!”

Tom shivered and hesitated until Clay became angry.

“All right!” he said. “I’ll go first. You keep close to me!”

And so the lads dove through the doorway, groped, half strangled, up the
stairs, over fallen timbers and planks, and so on into the main hall,
where there was no water as yet, but where the floor was sagging because
of the washed-out foundations.

Case, Alex, and Don were there to meet them. Outside the crowd was
cheering wildly and shouting congratulations to the boys who had entered
the flooded basement to open the door.

Clay and Tom began expressing their gratitude and their appreciation of
the brave act, but Don cut them off with a question.

“Did you get the wallet?” he asked.

“Of course we did!” replied Clay, “and we got something else, too.”

“What else was there to get?” asked Don.

“Mighty little left in that old house the last time I was there.”

“You’ll see, in time!” Tom said, with a knowing wink at Clay.

“Explanations in the future!” Clay exclaimed. “Just now we’ve got to get
past that sympathetic crowd and back to the boat. Say, Don,” he added,
in a moment, “I can’t wait to get back to the Rambler before asking one
question, and that is this: Did you come aboard the _Rambler_ and get
the money? If you did, say so—quick!”

“I certainly did!” Don answered. “If I hadn’t would have been lost, for
Teddy was playing with it!”

“That’s enough!” Clay said. “I’ll learn how and why later on. Wonder if
King is in that crowd out there? It was he who locked us in.”

“He is not,” grinned Case. “The mob got after him for locking you up in
such a dangerous hole, and he took to his heels! He won’t dare show
himself around here for a few days.”

“Then all we have to do is to get rid of the crowd,” Clay explained.

Of course there were many who wished to shake hands with the rescuers
and the rescued, and even Captain Joe came in for a fair share of
praise, but the boys were soon out of the crowd and on their way to the
boat.

At the water front they found the riverman, still growling and sulking
over the loss of the boat Tom had hired the night before. Tom told him
where the boat had been left, and Clay paid him for the use of it, so he
eagerly consented to row the boys to the _Rambler_, and, later on, to
convey their provisions and gasoline to them.

“I’m glad we find the boat still here!” Alex said, as he mounted to the
deck, “and I’m glad we have gotten rid of King. Now for a trip up the
river! Now for freedom from sleuths and mysteries!”

The other boys echoed the sentiment, but when they opened the cabin
door, a moment later, and looked in, there sat King, busy with the cold
pancakes Don had cooked just before he left the boat to assist in the
rescue of Clay and Tom. He smiled as the boys entered.

“Well, of all the iron nerve—”

Alex could not finish the sentence. There were no words which could do
justice to the occasion, he thought.

“Help yourself!” Clay said. “If you’ll wait a little while we’ll give
you hot coffee. We’re going to make some for ourselves!”

Tom’s greeting was not so cordial.

“If this was my boat,” he said, “I’d break you in two with my foot. You
came near drowning us. Do you know that?”

“The people on shore told me!” smiled King. “They came near stringing me
up by the neck for what I did.”

“You deserved it!” grumbled Don. “Indeed you did.”

“Now, see here, boys,” King went on, “I had my duty as an officer to do.
If you had been relieved of fifty thousand dollars and valuable papers,
you would expect the law to get them for you, wouldn’t you?”

No one replied, and the officer went on, calmly eating cold cakes as he
did so—eating and tossing a piece to Teddy now and then.

“You see,” he resumed, “I hold no grudge against the bear, if he did
dump me into the river! He did just what I would have done under the
circumstances. I don’t blame him. He is a good little beastie!”

“You wasn’t helping the law any by locking us in there to be drowned!”
Clay remarked, his eyes flashing.

“Wasn’t I?” asked King. “Let us see about that. You, Don, took fifty
thousand dollars of another man’s money out of Chicago. You carried it
in a belt about your waist. I had to find that money, didn’t I? I
searched the _Rambler_ for it! I had to maroon two of the boys on a sand
island and tie Captain Joe up in order to do it.”

Captain Joe licked his chops as if he was thinking of making settlement
for the insult right there. Clay called him away, or he would have taken
hold of the deputy’s leg.

“Yes, I searched the _Rambler_, and got up-river in a steamer after
being dumped off. Here I heard that lights had been seen in the old
house the night before. Now, what was more reasonable than to suppose
that Don had visited the old shack and buried the money in the cellar? I
was there looking for it when you boys came in. I should have released
you as soon as I had finished my search, only I couldn’t unlock the
door. All I could do was to go for assistance, and you all know how that
came out. I nearly lost my life at the hands of a mob, any member of
which would have done exactly as I had done.”

“You say it well!” snarled Tom. “I don’t trust you, though!”

“Now,” King continued, without taking notice of the remark, “I’ll tell
you what I’ll do. I understand that there is a question as to whom this
money belongs. It may belong to Don, for all I know! Well, if you will
put the cash in the hands of a banker here I’ll go back home and say
nothing about the deal until you boys have had time to turn around. But
I want it understood, too, that my client, this Josiah Trumbull, is not
to be molested by you for anything he has done in the past.”

Don agreed to this, and King continued.

“I have a notion that my client is a roughneck, as well as a three-card
sharp, but I’m going to do the best I can for him, for all that. If it
can be shown that the money belongs to you, Don, or to you, Tom, it
shall be turned over to you. But if this cannot be shown, Trumbull is to
have it, as against any other claimant. Is that right?”

This was reluctantly agreed to, and then the boys and King prepared the
best meal the larder was capable of, and enjoyed it hugely. After this
they went to the town, leaving Tom and Clay on board, and the money was
put in escrow in one of the banks. Don also put the government bonds on
deposit there. King’s eye stuck out when he saw the bonds and was told
where they had been found, but he only expressed congratulations.

All this business completed, provisions and gasoline bought, and letters
sent away, the boys went back to the _Rambler_ to study up the three
mysterious papers as forming a whole. But the black wallet held no paper
of any kind! There were a few half-rotten banknotes in it, a small flat
key, and nothing else!

“We are up against it again!” cried Case. “Well,” with a smile, “we’ll
go right on and try to uncover the mystery without the third piece of
paper. I wonder what this key fits, and if King got that third paper? He
might! What?”




CHAPTER XIII.—ALEX PLANS A NIGHT ADVENTURE.


The boys talked over the possibility of King having the third paper for
a long time. They could not see how the deputy had been able to secure
it, if he had done so, unless he had discovered it in the cellar, which
seemed to them to be highly improbable.

“That uncle of yours must have been a quaint old chap,” Clay said,
laughingly. “How, for instance, did he know that you would ever find the
bonds in the strong room?”

“I’m sure that he left a paper somewhere which tells about them,” was
the boy’s reply. “Perhaps this third paper will unravel the whole
mystery. Uncle told us about some papers the last time we saw him at the
shack in the Grand Canyon, but he did not tell us where they were. He
said we would find them after he was dead. I believe that all the papers
were left in a letter for us, and that this man Trumbull stole it.”

“How do you account for his having a chance to get them?”

“He was there, in the canyon, living near Uncle, when the latter
died—suddenly and alone, and was the first one there, the others say. It
is said, too, that a letter was left for us, and that it disappeared. I
knew Trumbull to be a thief, because he salted a mine and sold it, so I
naturally suspected him of taking the letter. This is how I came to get
the two papers and the money!”

“How did you come to find Trumbull in Chicago? All this is very
interesting to me. Wasn’t that a long chance—to find him at all?”

“We were in Chicago, earning our own living, when Uncle died. The people
living near the canyon wrote us about Uncle’s death, and about this man
Trumbull being there, and about the disappearance of the letter. I
thought the letter might have contained the promised papers, and so
watched for Trumbull, never expecting to see him there, though!”

“But you did find him! However did it happen?”

“After being in Chicago a short time, I got a position as errand boy in
a bank. I suspected at the time I got the place that the manager took
more than the usual interest in me, and I thought that he might know
Uncle David. That was before Uncle died, you see.

“Well, the manager took me on as errand boy, but after a time he kept me
working for him, and about his own private office in the bank, most of
the time, and often asked me about my uncle’s affairs, of which I could
tell him nothing, of course. I had not been there very long when Josiah
Trumbull came into the private office one day and laid a mining
proposition before the manager.

“I heard some of the talk, and discovered who he was, and also learned
that the mine he proposed developing was in the Grand Canyon of the
Colorado. He said it had been proven that the ore was virtually
inexhaustible, and added that he had come upon papers which showed him
where it was. The location was in the part of the canyon where Uncle had
lived.

“Then I recalled the talk Uncle David had had with me about valuable
documents, every word of it! I recalled, too, that that this man
Trumbull had been suspected of taking the letter! I watched him closely,
you may be sure! Quite like a detective story, eh?”

“It may prove to be one before the end is reached,” Clay said. “Go on!
I’m more interested than I can tell you!”

“Well, one day Trumbull came into the private office with a handbag and
set it down on a desk. He said he had drawn a little money and had
placed the papers he had spoken of with it. He added that he was going
out to the canyon mine to look into the matter.

“I stole that bag. I did not know that it contained a large sum of
money. I knew only that it contained the papers I wanted. By this time,
you see, I was certain that Trumbull had stolen the papers, that the
papers concerned a mine, and that he was about to acquire what belonged
to Tom and myself.

“I escaped, as you know. Just how I’ll not tell you now. I should have
consulted the manager, but ran off without doing so. That same day I
read in the newspapers about you boys and the _Rambler_. You see, I had
no money, save the $50,000, and I would not touch that, so I planned to
get to the Gulf of California and go up the Colorado with you! Tom was
crazy about it, and we started away. You know what wretched objects we
were when we came up with you.”

“But what got the notion into your head that the third paper was in the
wallet in the old cellar?” asked Alex.

“One day Uncle David told me of the old house being empty and in the
last stages of decay. We had visited the place with him, earlier, you
see, and I knew something about the treasure room. He had always told
me, though, that no money or thing of value would be found there. He
said that I must work for all I got of him.

“He said, though, that I might find some good advice in the treasure
room after he was dead. I did go there, with Tom, on my way to Chicago,
after we left him, but discovered nothing. I had even forgotten the
manner of getting into the treasure room. But when I found the two
papers in Trumbull’s bag I at once drew the conclusion that the third
paper must be in an old wallet Uncle had referred to as being in the old
cupboard. I was pretty sure it would be found there, as you know. The
only question in my mind was as to whether I should be able to get into
the treasure room and make a search of it without tearing the house
down. Tom did not know of this difficulty, and I never told him.”

“You’re telling me now!” laughed Tom.

“When we got to Yuma,” Don went on, “we were too busy dodging King to do
much investigating at the old house. Trumbull must have told King about
it, for he watched the place, as you know, and even dug there for
treasure. Tom and I got separated on the way across, and King saw me
while I was waiting for Tom to come up.

“When he did come, I left him there and went on down the river to
connect with you. There was nothing Tom could be arrested for. Now,
that’s how I got the money and the two papers, and also how I didn’t get
the third paper!” the boy laughed, “and so we’ll talk about something
else if you don’t mind.”

“But how are you ever to get this third paper, and how are you to get
the treasure if you don’t?” asked Case.

“With your permission I’ll go on up with you to where Uncle used to live
and search his old shack. The third paper may be there. Of course the
bonds are what Uncle David referred to as ‘good advice’ in the treasure
room. That was just like him, to call bonds ‘good advice.’ If I ever
discover the third paper, I have no doubt it will tell me where to look
for the bonds. He never thought of their being found in the manner Clay
found them!”

“Where did you ever hear anything about a third paper?” asked Clay.

Don took the original papers holding the drawings out of the belt and
held it up to the light.

“Did you see this line at the bottom?” he asked. Alex gave a start of
surprise. He had studied every figure and letter on the paper and had
seen no line at the bottom, yet there it was, plain to see when the
paper was held up to the sun. The line read:

“Worthless without No. 3!”

“There you are,” Don went on. ‘Worthless without No. 3.’ Josiah Trumbull
and King found that line, and they are, or were, hunting for No. 3, just
the same as we are! Now, if you boys think this mystery will spoil your
trip, just put us off and we’ll get to the canyons some other way, but,
still, we’d like to go with you!”

“I’m so seriously interested in the mystery,” smiled Clay, “that I
wouldn’t feel like making the trip, now, without you and the two pieces
of paper. How do you feel about it, boys?”

How did they feel about it? What would two healthy boys naturally say to
a mysterious adventure of the sort proposed? Hunting for the buried gold
of Captain Kidd looked like a summer afternoon game of marbles compared
to this! The Grand Canyon and a mystery! Marks on a rock, perhaps
thousands of feet below the level of the plateau! A missing paper and a
contest as to who should get to it first! Surely, no game could be more
exciting. And the boys said so, and all shook hands on the proposition,
after which they ate dinner and Clay went on shore to see about buying
gasoline, provisions and a small rowboat.

He returned just before nightfall, perspiring with the heat of the
desert sun, and the articles he had bought were soon on board.

“I saw the last of King,” he reported. “At least the last of him for
some days to come, as he took train for Phoenix. He’s a good sort, is
King, but if he thinks his conscience will hurt if he doesn’t know more
about the secrets of the Grand Canyon, he’ll hire a motor boat and
follow us. I imagine he has telegraphed to Trumbull, for I saw him
waiting at the office for a message. I heard him tell the clerk in the
office to query Chicago.”

“Good luck to him!” laughed Don. “He is loyal to that thief of a
Trumbull, all right, for he made us promise not to prosecute him if it
should be discovered that he had committed some crime in connection with
his dealings with Uncle David, also to restore the money to him if it
did not prove to belong to Tom and myself.”

“Some one ought to be in Chicago, watching Trumbull,” suggested Tom.
“Suppose I go? I can get there if the rods hold out! What do you say?”

“It would be a great idea,” Don agreed, “but we have had enough of
riding on the rods, and we have no money.”

“But the bonds!” laughed Alex. “What about them? How much are they
worth, Clay?” he added. “You handled them.”

“Something over one hundred thousand,” was Clay’s reply, “but there is
no proof that they belong to Don and Tom, you know.”

“That’s why I put them in bank,” Don cut in.

“If you think you ought to go back to Chicago, Tom,” Clay said, “I’ll
furnish the money. But what can you do there?”

“He can go to the manager of the bank where I worked,” Don explained,
“and tell him the whole story, and he’ll help. I believe that manager
knows more about this matter than he pretends to!”

“How did you manage to get into that bank in the first place?” asked
Alex. “It ain’t every street boy that gets such a chance.”

“Oh, I met one of the bank’s messengers one day, and he told me I might
get a job there. Odd, wasn’t it?”

Clay broke into a roar of laughter, whereat Don assumed a manner of
wounded dignity and walked away.

“Come back here, you foolish lad!” Clay called. “You may be sure that
manager does know more about this matter than he pretends to know! The
chances are that he had been keeping track of you for a long time, just
to see what kind of a boy you were!”

“Then why didn’t he help me?” asked Don.

“How do you know what your uncle told him to do? I reckon this Uncle
David of yours knew what he was about! He didn’t want you and Tom
spoiled by inheriting a lot of money! He wanted you to dig it up!”

“Yes,” replied Don, mournfully, “and I guess he buried it so deep that
no one will ever be able to dig it up!”

“Anyway, you two boys have shown the proper spirit,” Case said, “and
that ought to count for much. And you have the bonds!”

So it was arranged that Tom should go to Chicago that night and go to
the banker and tell him the part of the story he did not know. The
parting was a grave one, for the brothers were deeply attached to each
other, and there was no knowing what perils would confront either of
them before they met again.

After supper the _Rambler_ was speeded up the river for twenty miles or
more, “to get her out of the odor of trouble,” as Alex expressed it.

“Now,” Clay declared, when they came to anchor below Norton, with
Chimney Peak showing not far away, “we are going to have a night free
from boarders and troubles about money. We are off in good earnest at
last.”

“That’s a pretty tolerable old mountain,” Alex declared, pointing to
Chimney Peak. “I’d like to take a spin over to it.”

“You’ll stay right on this boat,” ordered Clay. “I’m not going to lose
any time hunting you up.”

“I won’t get lost in any cellar!” returned Alex, with one of his
provoking grins.

It was agreed that Case should stand guard that night, and the others
went to their bunks early, with the exception of Captain Joe, who took
his station on the prow and watched the slow-moving water with a
meditative air. Teddy tried for a time to engage him in a boxing
contest, but the dog declined with thanks and continued his inspection
of the river.

It was a beautiful starlit night, and Alex was too full of the old
spirit of adventure to sleep. He tumbled about in his bunk for a time
and then arose and peered out on deck.

Captain Joe was still on sentinel duty, but Case was actually asleep in
his chair! The boy was worn out with the excitement and worry of the
day. Alex did not disturb him, but sat down by his side and looked
longingly off toward Chimney Peak.

“Captain Joe!” he finally whispered.

The dog pricked up his ears and walked sedately up to the boy.

“Will you remain here and watch the boat while I go ashore?” asked Alex,
patting the dog on his head. “Will you, old top?”

Captain Joe looked off toward the mountain summit and made no rash
promises! He was a wise dog, and knew the ways of boys!

“It is just this way, Captain Joe,” Alex went on, talking to the bulldog
as if he understood every word, “it is just this way. Those sleepy heads
in the cabin, and this one out on deck, would sleep in the presence of
the pyramids! You know it, don’t you?”

The dog said that he did in a tongue which Alex understood.

“Well, then we’ll go ashore and see what that hill is made of,” the boy
went on. “We’ll take the rowboat and pay a visit to the Chimney!” It
looks pretty classy from here, eh?”

Captain Joe admitted that it did, and the boy got out the rowboat and
left the _Rambler_, the dog sitting in the prow with an air of being
necessary to the expedition. The boy and the dog saw adventure ahead and
were recklessly, foolishly glad of it!




CHAPTER XIV.—A VISIT FROM RIVER PIRATES.


Case slept a long time in his chair on the deck of the _Rambler_. The
currents pulled at the anchor chain, and now and then a floating
derelict of a log or discarded box bumped against the sharp-nosed prow,
but the boy was tired, mentally and physically, and did not mind in the
least.

Teddy, the bear cub, nosed close to him, seeking physical warmth from
the chill of the night, and finally went to sleep himself. When Alex and
Captain Joe looked back from the rim of sand which lay between the shore
line and Chimney Peak, there were no lights to be seen on board the
motor boat—only the bulk of the craft outlined against a starlit sky.

Finally, when Case did awake, it was with a sense of impending danger.
There is a quality in the human brain which stirs at the vibrations of a
hostile influence, and Case felt it now.

It was not long before he understood this threat fully, for his chair
was knocked from under his body and he fell with a bump on the deck,
lighting on Teddy, who set up a most dismal howling. While the cub
scrambled out from under the boy’s legs, there came a commotion in the
cabin. Case tried to get up, for he knew that a struggle was on there.

But he was not permitted to get up. There was a strong hand at his
throat and a knee which dripped water on his chest.

“All right!” some one said, in the direction of the cabin.

“All right here!” the figure above Case replied, and then the boy was
jerked to his feet. “I’ll bring him along in. Get a move on, kid!”

At first Case thought it was King’s voice, but in a second he saw that
it was not, for the fellow broke into a series of oaths and cries of
pain as Teddy seized him by the leg and set his sharp teeth together.

“Come out here!” the fellow shouted. “Come out here and kill this bear!
He’s chewing my leg off. Hurry up! Bring a gun, too!”

There was a movement in the cabin and the door opened. Case saw that
Clay and Don were in no better shape to prevent the murder of the cub
than himself. He was afraid that the little bear had used his teeth once
too often. But Case usually acted on the theory that a game is never out
until it is played out, and he did so on this occasion.

“Take a swim, Teddy!” he shouted to the bear, giving him a push with one
foot. “Take a run and jump into the river. Get busy now!”

The cub had often heard these words. When the boys were ready for a
river bath Teddy was usually ready, too, and he was always addressed in
the words Case used now, or some almost exactly like them.

So the bear, thinking, doubtless, that a new game was on, gave one
parting snap at the fellow’s leg and went headfirst into the river. Case
tripped the man who ran to the railing with a revolver in his hand, and
was rewarded by a violent blow on the head.

“Coming! Coming, Teddy! Get a move on!” Case called out to the bear, and
it was with a good deal of satisfaction that he heard the intelligent
animal snorting with the race spirit as he made clumsily for the shore.
Doubtless the bear wondered why Case was not at his heels on this, as on
other occasions, but he kept on swimming and so escaped death.

Dazed as he was by the blow he had received, Case heard the fellow
shooting at Teddy, and heard Clay and Don arguing with the men who were
the cause of the commotion in the cabin.

“Come!” the boy heard a hoarse voice saying, “we have no time to lose.
“You boys went to a bank at Yuma to-day and drew out a lot of money and
a package of government bonds. We want them! Produce!”

“You are mistaken,” Clay replied, his voice sounding harsh and strained,
as if he was just out of a struggle. “We put our money in the bank, and
the bonds in the bank. We drew nothing out. Take what I have in my
pocket and go. There’s nothing else here for you.”

Case heard one of the men rattling the coal stove, and a shudder of
horror went through him. Would the midnight raiders be brutal enough to
resort to torture? He had heard of terrible, inhuman things that river
pirates had done. He tried to get up, but was held fast.

“Here!” a voice in the cabin said. “Don’t wait to heat up that old
stove! Just turn the electric current on this coil. That will prevent
his going to bed with cold feet to-night!”

“He is telling the truth about the money and bonds,” Case said to his
captor. “They were left in the bank at Yuma, and he gave another lad
money enough to get to Chicago, so we're about broke.”

“Tell that to the marines!” chuckled the other. “We know what we are
doing, all right. You were seen to take the money away from the Yuma
bank! He’ll remember about it as soon as the coils get hot, too!”

“Some one lied to you about the transaction at the bank,” Case insisted.
“Who said we took the money and bonds away?”

“I wish I had that fool bear back here!” Case’s captor snarled. “I’d
burn his teeth out of his head! I shall be lame for a month.”

“Who told you we took the money and bonds away?” persisted the boy.

“Why, an old gentleman who stood close by saw you, and we heard him
speaking about it later. He said it wasn’t safe for boys like you to
have so much ready money in this wild country, and we agreed with him.
So we are going to help you take care of it. You’ll hear that fresh kid
inside telling the truth as soon as his feet touch the hot coils.”

“If you brutes burn Clay,” Case declared, “we’ll give up our trip up the
river and follow you to the end of the world but we’ll bring you to the
gallows! You just remember that!”

“You’ll crow lower when your own feet feel the fire!” laughed the other.
“You’re brave, all right, but you’re a fool, too!”

Case threw himself back on the deck and closed his eyes. Every instant
he expected to hear Clay’s cries of anguish as the torture began. There
seemed to be no help anywhere. Don was as helpless as himself.

All around the boat the night shut down, chill, silent, inscrutable. Far
up the stream the lights of a small town shone indistinctly. To the west
the peaks of Chimney mountain rose into the starlit sky. From the ocean,
a long distance away, a light wind ruffled the water.

Everywhere was peace, and everywhere the great facts of Nature stood in
friendly attitude to each other. It was only the human element that was
warring! There seemed to be no hope of rescue anywhere!

Case blamed himself for sleeping while on watch. He blamed Captain Joe
for not giving the alarm when these ruffians sneaked on board. But where
was the dog? He had not seen him since his rude awakening. And where was
Alex? He had not heard the boy’s voice in the cabin. He knew that Alex
would be doing a lot of talking if present!

The boy knew that there were four men on board. He could hear a craft of
some kind bumping against the side, and so he knew that they had
followed the _Rambler_ from Yuma by way of the river. He could not see
the faces in the cabin, for the door was kept closed, but he could hear
the preparations for torture going on!

He lay not far from the hatch which covered the motors when the boat was
at anchor. If he could only get a little closer and run his hand down
into the pit he might be able to switch off the electric current so the
coils would not heat. He resolved to try.

Things were not going well in the cabin, for the boy heard the captors
snarling and cursing at the coils. They did not seem to understand how
to turn on the current, and so there was delay. Case pushed along to the
hatch. As he did so his enemy released his hold for a moment and turned
toward the cabin, saying as he did so:

“If you chumps don’t know how to run that stove come out here and guard
this kid and I’ll do the work myself! It is easy enough!”

The fellow started for the cabin and one of the men inside turned toward
the deck. For just an instant Case was free. He reached over to the
hatch, lifted it so as to get his hand into the pit and turned off the
electric current from the containers. In a second the boat was in
darkness, and the pirates were groping about for their prisoners!

Case made a quick motion toward the railing, but was seized and drawn
back. Clay and Don, who had succeeded in getting out of the cabin, were
thrust back again. Still, the turning off of the current had resulted in
delay, and that was something.

Clay called out to Case to know if he was still alive, and was given a
courageous reply. Case’s guard bent over him with clenched fists.

“You turned off the electricity!” he shouted.

“Turn it on again, or I’ll spoil your face for you. Do it quick, too!”

There seemed to be no help for it. Case took all the time he could in
lifting the hatch and turning the switch, but at last the lights flared
up again, making the boat as light as day, for during the dark interval
one of the men had turned the switch which fed the prow light.

While Case lay there, not daring to move hand or foot, his mind went
back to Alex and the dog. Had they been killed at the first moment of
invasion? Had they resisted and been thrown into the river?

“Come, now,” a voice in the cabin said, “you may as well tell us where
the money is. We are bound to have it, you know!”

“I have told you the truth about the money?” Clay responded.

“Heat up the coils!” shouted the first speaker. “We’ll have to warm his
feet for him! It is a cool night, anyway, and it may do him good.”

The boys listened for some sound of life on the river—for some trading
boat to come creeping up! But there were no indications of the approach
of any river craft whatever. Still, there was a slight jar!

Perhaps the _Rambler_ had been struck by a floating log! Perhaps an eddy
had sent the boat pulling harder against her chain! There was a slight
movement on the aft deck. Perhaps the dog had been asleep there, or
perhaps Teddy had returned to the _Rambler_ and was creeping up out of
the water The deck guard stepped to the prow to shut off the light.

Then a shot came from the rear, and the pirate threw up his hands,
balanced unsteadily on the rail for an instant, and fell into the river
like a stone. Case sprang out of the way as the fellow’s companions
rushed from the cabin, brandishing their guns and demanding to know who
had done the shooting.

Other shots came in quick succession, and another pirate dropped limply
to the deck while the remaining two sprang over the railing and, not
stopping to secure their small launch, struck out for the shore.

When Clay and Don came out of the cabin they found Alex and Captain Joe
watching the two heads bobbing in the water. Case had arisen to his feet
and was looking with all his eyes at Teddy, perched in a boxing attitude
on the roof of the cabin.

There was little excitement in Alex’s face as he turned to Clay.

“I ought to shoot them both,” he said, pointing to the swimmers. “I know
what they were about to do. Shall I shoot them?”

Clay shook his head and Alex put up his revolver.

“How did it happen?” the latter asked. “Who are those men?”

“They are river pirates,” Clay replied, “and I don’t know how it
happened. Case was on guard, but the first thing I knew the men were in
the cabin, holding a gun in my face. I guess Case must have been
asleep.”

“I was,” Case said, sheepishly. “I ought to be shot!”

“He was asleep when I went away,” Alex, with a sly wink, contributed. “I
ought to have got him up, but he looked too sleepy!”

“Where did you go?” demanded Case. “You’re a fine boy, not to make me
get up and attend to business! And Captain Joe must have been sound
asleep, too, or he would have given the alarm!”

“Captain Joe went to the beach with me,” the boy cut in. “We were just
striking out for the mountain when we saw that something unusual was
going on on board the _Rambler_. Then I saw Teddy swimming to shore and
he told me what was doing! At least he insisted with his teeth on my
returning right off. Guess we got back here just in time!”

“I guess you did!” Clay admitted. “The pirates were thinking of warming
my feet! I almost wish you had killed them all!”

A motion on the deck caught the attention of the boys, and Clay went out
to find the pirate who had fallen at the second shot trying to crawl to
the railing. The boy did not interfere. The wounded man reached the
railing at last and threw himself into the river.

“I don’t believe he is strong enough to swim ashore,” Clay said, “but
we’ll leave that part to him. If he lives, he’ll be hanged some day, so
he may as well drown now. Any man who will resort to physical torture to
extort money has no claims whatever on humanity.”

“Now,” Don observed, with a quiet smile, “suppose we go on up the river?
You boys were having trouble enough with me before this pack of pirates
took the notion to steal my money from you. It seems to me that the only
safe place for us is up in the Grand Canyon! I move that we get under
way to-night and keep going as long as the river will permit.”

“That’s good advice,” Clay replied. “We’ll get as far away from this
country as possible before daylight! This thing is getting on my own
nerves! I’ve been looking for a quiet week or two, but I haven’t found
them.”

The boys lost no time in getting the motors started. Then followed
beautiful days on the river. The boys fished and slept and held boxing
tournaments with Teddy, and sailed on under the sun and under the stars
until the banks grew higher, the mountains closer to the river, and they
knew that they must begin to take great care in navigating, for the
Colorado river is not noted for its peaceful disposition!

One night they drew into a little creek running into the Colorado from
the California side and built a roaring fire on the shore.

“Across the river,” Case said, pointing, “are the Blue Ridge mountains,
and the summits you see are Mount Perkins and Mount Davis. Ten or
fifteen miles up the river is Black Canyon, and thirty miles above the
entrance to the canyon is Fortification Rock! There the Colorado turns
to the east. Here our wild sport begins.”




CHAPTER XV.—TEDDY MEETS A RELATIVE.


“And right here is where we back up!”

It was one day later, and the _Rambler_ lay in what looked to be a great
lock, with gates out of sight! There were high walls on either side, and
just ahead the view was shut off by an abrupt bend in the rocky
formation. The Colorado river was pouring like a Niagara over a ledge
where the narrow canyon turned.

“This Black Canyon thing does seem to tell us to go back!” Don remarked,
with a sigh. “Looks like I’d have to leave you and take to the plateau
in order to get to the Grand Canyon, after all. “This seems to be a
locked door, all right! No boat can ever get above that tumble!”

“I’ve heard of boats going past Black Canyon,” Case insisted.

“They must have gone up in a balloon, then!” Alex suggested.

“There may be a passage around this series of falls,” Clay said.

“Well,” Alex sighed. “We’re out of sight of river pirates, anyway. We
can see the blue sky over our heads, and that is about all!”

“Fine place to camp, on that shelf of rock!” Case put in. “I’d like to
stay here a few days and investigate some of the caverns.”

“That’s a good idea,” Clay exclaimed. “And while we are looking in the
odd crevices the water has made we may find some way of getting the
_Rambler_ up the river. Anyway, I’m not going to give up the trip until
I have to! A man once went the whole length of the Grand Canyon in a
boat! He must have got many a ducking!”

“Yes, but he was coming down, while we want to go up! If we were up
above these falls, we might get down, by risking the boat and our own
lives, but I don’t see how we are ever to get up!”

“There’s always a way!” laughed Alex. “I’ll get some of that drift out
of the eddies and build a fire on that rock while you boys get supper.
If you want fish, catch ’em. Seems to be plenty here.”

“You’ll have a fine time making that wet wood burn!” cried Case.

Alex pointed to an opening in the wall of the canyon, back of the rock.

“I’ve been looking into that nest,” he said, “and I’ve discovered that
there’s dry wood and leaves in there. Some day when the Colorado was on
the rampage, logs and limbs drifted in there and never got out again.”

“Why wouldn’t that be a good place to camp?” asked Don. “Aren’t you boys
getting tired of sleeping in those narrow bunks every night?”

“You bet I am,” Alex answered, “and I’ll sleep in the cave if any one
else will. It seems nice and dry in there, and Captain Joe can keep
watch! Who’s in for it? Now, don’t all speak at once!”

“I am, for one!” Don explained. “I’ll just enjoy it.”

“The _Rambler_ is good enough for me,” Case asserted, and Clay expressed
the same opinion, so Alex and Don were the only ones to move their
blankets and pillows into the cavern that night when they were ready to
go to bed. Teddy went with them, but the dog crept back to the boat.

“Bears live in caves, anyway!” laughed Don. “I guess Teddy feels at home
here, the way he is tumbling about. Cute cub, that!”

There was a fire, fast dying down, just outside the mouth of the cave
where the two boys were, and they lay side by side in their blankets for
a long time watching the flickering blaze and talking of the strange
events which had brought them together. At length Don spoke of the
papers.

“Do you really hope to find the third paper in the shack your uncle
inhabited in the Grand Canyon?” asked Alex. “I ain’t so sure of it.”

“I am sure it is there,” Don answered, “but I can’t say whether we shall
find it or not. I’ve been thinking that we might find the spot marked by
an ‘X’ without it. I’m certain that the third paper tells only of
surroundings—perhaps points the way to some bend or cliff. By looking
over the locality very carefully, we may be able to find the sunburst
and the big X. Don’t you think so?”

“Why, of course,” Alex replied, sleepily.

“Oh, if you're going to sleep,” laughed Don, “you’ll get no more of my
wisdom! I'm sleepy myself, so here goes.”

But sleep did not come at once, for there was an interruption. Teddy
arose from the blanket he had chosen as his bed and moved toward the
entrance. The fire was low, now, and the boys could just see his figure
outlined against a mass of red coals. He was growling.

“Come here, you foolish cub!” Alex called to him. “Don’t you go to
starting anything here! We want to go to sleep. Understand, you cub!”

Teddy gave a low whine and moved back into the cave. Then the boys
closed their eyes. But Don was restless and sat up in a few moments.
Alex heard him, but kept his eyes closed. Then Don whispered in the
boy’s ear and pulled at his shoulder.

“Alex!” he whispered. “Look out to the door and tell me if I am seeing
double, will you? There’s Teddy outside again, but he is three times as
large as he was a little while ago. Do you think there’s something in
the atmosphere of this cave that induces growth in bears?”

“Aw, go to sleep!” was Alex’s response to the query.

“But that cub has grown to be about nine feet high!” Don went on. “He is
as big, now, as one of the grizzlies at the Lincoln Park Zoo! Just wake
up and see if you think we can get him on board the boat in the morning!
If he continues to grow, he’ll be too big to get on a man of war by
daylight! Come, wake up! This thing is getting on my nerves!”

Alex opened his eyes and looked, and the bear he saw was about as large
as four Teddies all rolled into one. The great bulk of the animal almost
closed the entrance! Alex sat up with a little cry of alarm.

“That isn’t Teddy,” he gasped. “That is a bear that wants to come to
bed! I’d give a year off my life to be out of here right now!”

“Will he bite?” asked Don, innocently. “Teddy doesn’t bite!”

“Will he bite?” repeated Alex, and retreated to the end of the cave, for
the big bear was entering, snuffing and growling, evidently angry
because there were intruders in his bedchamber! Soon he began nosing at
the blankets where the boys had lain.

The fire outside flared up and they saw Teddy advancing toward the
larger animal. The cub was walking sidewise, turning his head from right
to left, as playful puppies do when not quite certain of the character
of the reception their advances are to meet with.

The big fellow looked critically at the cub. The boys were sure they
could see an interrogation point in each eye! To them, at least, he
seemed to be asking:

“Now, whose baby are you, and what right have you to come into my
bachelor quarters, where babies are never allowed to come?”

Still sniffing the air, bruin rose on his rear feet as if to take the
intruder into a crushing embrace. This was too much for the little cub
who had been taught boxing lessons by three reckless boys.

He shot out of the obscurity of the interior of the cave, ambled up to
the person of the house, and gave him a cracking box on the ear! The big
bear went down under the impact of the blow, not having been prepared
for it, and Teddy stood there ready for another round! There was added
peril in every instant now, but, in spite of all, Alex snickered and Don
broke into a ringing laugh.

“Go it, Teddy!” Alex cried. “Give him another! Hand him one on the bread
basket!”

Just such words, just such advice, just such encouragement, had the cub
often heard while facing one of his instructors! He knew no more now
than to obey. Bruin received another wallop on the ear, but poor Teddy
went down for the count, and the larger animal sprang at him!

It seemed for an instant as if the last days of the cub had come, but
fortune favored him. Bruin hesitated for a moment whether to attack the
cub he had floored or to take a bite out of the boys who had invaded his
home. He chose the latter course and sprang for Don.

Now it began to look as if the boys would never get out of the cave
alive. The bear was between them and the entrance, so they could not run
away from him. Alex felt for his automatic, but remembered that he had
left it on board the _Rambler_.

Don managed to elude the claws of the bear as the rush came, but all the
time he was being crowded into a corner from which there would be no
escape. He, too, reached for his automatic, but did not find it.

He found something quite as useful, however, as the result showed, in
the form of an electric flashlight! As the bear advanced the boy opened
the sliding switch and turned the round eye of light full into his face.
Then he advanced, shouting wildly.

Bruin’s small eyes flinched under the strong flame. He threw up his
nose, sniffed at the intangible thing which cut such a path of fire in
his quarters, and began backing out. Don followed him, still shouting.

The bear stopped for an instant to give Teddy, now rising from the
floor, a box on the ear and backed out of the cave. At that moment Clay
and Case, who had heard the shouting, appeared on the deck of the motor
boat with weapons in their hands.

“Shoot him!” Alex cried out to them. “Shoot the big stiff! He’s injured
Teddy. Give him a couple of bullets!”

Both boys fired and the bear went down. Vital spots had been, in both
cases, reached by the bullets, and the big fellow moved only in
convulsive struggles after he dropped on the smooth rock in front of the
cavern.

“It seems a pity!” Case said, standing over the fallen giant with his
still smoking revolver in his hand. “The poor old chap had just as good
a right to life as any of us. I’m sorry I shot him!”

“I guess you didn’t see him slamming Teddy around, and backing Don up
into a corner!” Alex cried. “Only for the searchlight, there would have
been a dead boy instead of a dead bear—perhaps two dead boys!”

“How is Teddy?” Clay called out.

“He’s getting on his feet again!” Alex replied. Then he broke into a
laugh which echoed through the cave and out into the canyon and pointed
to the cub bear.

“Just look at him now!” he cried. “He’s game! He wants to box the big
fellow some more! Come here, Teddy!”

The cub dropped from his boxing position and approached the boy.

“Got knocked out, didn’t you?” Alex jeered. “Knocked plumb out!”

Teddy rubbed the sides of his face with his paws and snorted.

Alex and Don went back to the boat for the night. They had had quite
enough of the cavern. In the morning, the first thing, the hide was
stripped from the bear, rubbed faithfully with salt, and hung up to
cure.

After breakfast Clay and Don climbed to the lip of the canyon and walked
a long way to the north, the idea being to see if the river above the
falls was suitable for navigation. They returned at noon and reported
that if they could get over the falls they could run up for miles with
little difficulty. There were rapids, but none the _Rambler_ could not
make headway against, they declared.

“And we discovered another thing,” Don exclaimed. “This rock we are on
is an island! The river splits something about a mile above here.”

“Then where does the new channel come into the canyon again?” asked
Case. “Perhaps we can follow up this new channel and so get around the
falls. It is worth looking into, at any rate.”

“It must be down stream,” Clay suggested, “for we did not pass any
junction. Perhaps we’d better drop down and find it.”

They found it half a mile below. The new channel was carrying a swift
current, but the water was deep and there were no falls, so the boys got
up full power and started up. The motor boat had the fight of her life,
but she went up gallantly, sometimes hesitating, but always gaining in
the end, until they came out above the falls.

“A few more like that,” Clay declared, wiping the sweat from his face,
“and we’ll have to take the _Rambler_ to the repair shop. That was a
hard struggle for the old boat.”

From that time the voyage was not so strenuous, still, the going was
rather more difficult than that encountered on the Columbia river trip.
There were times when the boys were obliged to unload the boat and
almost carry her, times when ropes were used to assist her up swift
sweeps of water; but, then, there were wide valleys where Indians tilled
small patches of earth, and where there were green things in view
always. Whenever opportunity offered the boys procured water from
springs in the hills, for the waters of the Colorado are full of the
silt washed down from the mountains.

The Colorado river was born when the Rocky Mountains lifted their peaks
above the continent. From their lofty heights the collected moisture
flowed down on the plains below until a river was formed. From the base
of the mountains to the ocean level there is a fall of a mile, so the
river runs swiftly. The water cuts out the light soil and also heaps it
up. In the canyons the river runs 6,000 feet below the level of the
plateau, and people on the desert above might die with thirst because of
the impossibility of getting down to the water.

The Colorado is forever changing its course and currents. Here mud flats
are forming, there a bank is being washed away. Here a mighty rock
topples into the stream, there the water cuts around a tower, leaving a
pillar three hundred feet high, standing out alone! The river, ages ago,
entered the Gulf of California where Yuma is now; in a few centuries it
will fill up and make a level plain of the entire Gulf. It deposits silt
enough in one year to cover sixty-six square miles of territory with
sediment a foot deep! It is working hard to level the continent, ably
assisted by the Columbia, the Mississippi, the Frazer, the Snake and the
Gila!

The boys will never forget those days and nights on the Colorado. It was
a golden time, and at last the Grand Canyon opened before them!




CHAPTER XVI.—CONCERNING A HEADLESS GHOST.


“Now,” Clay suggested, on the morning following the arrival at the mouth
of the mightiest canyon on earth, “we may as well make up our minds that
we can’t go very much farther in the _Rambler_. We will go in as far as
we can, then tie up and investigate the great mystery.”

“If you want to see the Grand Canyon to good advantage,” Don advised,
“get up on the plateau and look down and across. At the level of the
river you see little save blue sky and rock, and you see those like one
looking out of a well! Besides, it is pretty hot down here.

“There is little breeze, and we are a mile or more nearer the center of
the earth than those at the lips of the cut. When it snows up above it
rains down here. Clumps of willows which grow in the canyon look like
fringes of grass from above. The houses where the guides and a few
Indians live look like soap-boxes from the top.

“And, then, from the top, you can get the full contrast of the colors in
the layers of rocks. You’ll see a wall of black granite rusty with the
iron that is in it, and, a short distance away, you’ll see red, amber
and green pinnacles with white tops. We’ll have to climb some to get to
the shack where Uncle David lived, and so you may be able to satisfy
your love of nature without going to the top.”

“Did any one ever sail down through this canyon?” asked Alex.

“Yes,” Don answered, “Major Powell succeeded in getting through with a
boat, but some members of his party lost their lives. We can nose the
_Rambler_ up for quite a distance yet, but of course we can’t go
through.”

“Then suppose we camp in the canyon itself to-night?” Alex questioned.
“It will be fine to hear the waters singing!”

“We may safely do that,” Don answered. “We will, of course, be in what
is known as the inner gorge, that is, away down to bed rock! We can get
to within a couple of miles of the shack by night and make camp there.
Then, in the morning, we can climb up and have a look at the old place.”

“You lived there for a time with your uncle?” asked Case.

“Yes, for a couple of years. But Uncle never made much of us boys. He
seemed to want to be alone, and, besides, he often said that we ought to
be out in the world learning to fight humans! Uncle had a notion that
men and women were worse than wild animals!

“So, after a time, he sent us away, giving us tickets to Chicago by way
of San Francisco and the S. P. While on the way back, as I have already
told you, we visited the old house at Yuma. I never saw Uncle again. He
was a strange old fellow. Where he got all his wealth is more than I
know, but he certainly was rich.”

It was hard work sailing against the currents of the Colorado, but the
motors were strong and reliable, and at night the boys found themselves
shut in by towering walls of rock. Above, on either side, were shelves,
ledges and precipices. Away at the top grew yellow pine and fir, below
juniper thrived, and farther down were willows and various kinds of
bushes. The light was dim long before sunset, and the river ran dark and
sullen between the frowning walls.

“We’ve got to stop here,” Don declared, as the _Rambler_ reached a point
where the inner gorge widened out into a small valley—a very small
valley indeed—“for the shelf where the shack stands can be reached only
from this point.”

“How far up is it?” asked Clay.

“Something like two thousand feet.”

“Almost to the surface?”

“Not half way,” was the laughing reply. “There was a copper mine there,
once, years ago, and the shack was left by the miners when the drive was
deserted. It is an uncanny place!”

“How do you get there?” asked Alex. “Is it a hard climb?”

“Rather! In places the path is only thirty inches wide, with a wall a
thousand feet up on one side and a drop of a thousand feet on the other!
In places the way is so steep that steps have been cut in the rock, to
prevent the burros slipping.”

“Burros!” echoed Alex. Walking up and down that wall!”

“Both burros and horses, after proper training,” Don answered.

“I think I'd rather walk!” Alex muttered, and Case nodded agreement.

“You’ll find that horses’ feet are surer than your own,” Don predicted.
“There is rarely an accident here.”

The boys anchored the _Rambler_ close to the shore, opposite the little
spread-out of rocky soil and built a fire of driftwood. When night
settled down the stars looked into the gulch bright and clear, and in
time the moon arose and lighted the upper air, though its rays did not
penetrate to the inner gorge at first, of course.

After supper the lads sat on the deck of the motor boat and watched the
line of moonlight drop down on the west wall. Now it touched the top of
a monument erosion had wrought, now it painted a shadowy wall where
rocks were tottering to a fall.

“It is going to be a ghost night!” Don said, presently.

The other boys laughed at the expression, and Clay asked:

“Do they have ghost nights at the bottom of the canyon?”

“The ghost nights,” Don explained, gravely, “are found only near the
broad level made by the dumpings of the old copper mine. Anybody who
ever lived hereabouts can tell you that ghosts come forth at midnight
and walk the ledges where they came to their deaths!”

“Bunk!” grunted Case. That’s all bunk!”

“About the ghosts? Of course, but there is something mysterious in the
Grand Canyon! There are noises no one can account for, and sights which
no one can explain are common. It is a haunted place!”

“I’m glad of that!” Alex exclaimed. “I’ve always wanted to form the
acquaintance of a really, truly ghost! One may come to-night!”

“If one should,” laughed Clay, “you would be the first one to jump out
of your skin with fright! I don’t want to be bothered with ghosts, for
one, for I’m tired and sleepy. Besides, we have a hard climb before us
for to-morrow.”

When the boys went to bed the west wall of the canyon was silvered with
moonlight, while the east wall was still clothed in shadows. Case’s bunk
was nearest to the door of the cabin, and Captain Joe, seeking
companionship, snuggled down by it.

The last thing the boy heard, before he dropped into a sound sleep, was
the uneasy breathing of the dog. After a time he awoke with a start.
Captain Joe was bristling and growling.

“You ornery pup,” Case whispered, “keep still! You’ll wake the boys up!
What do you see out there to growl at?”

Captain Joe advanced to the prow of the boat and pointed with a
quivering nose to the east wall of the canyon. Then he looked back at
Case and invited an apology for previous coarse treatment!

Case looked and turned back to awake the other boys, then changed his
mind and stood waiting. On a descending shelf of rock five hundred feet
above the level of the river, a white object could be seen creeping
slowly downward. It was in the shadow at first, but presently came into
a light reflected from the opposite wall.

Then the boys saw a white horse without a head and a white rider, also
without a head! The horse moved slowly down the shelf toward the river,
and the rider sat upright and stiff, not swaying at all with the motions
of the horse! While Case looked the pair, the white horse and the white
rider, came to an abrupt ending in the shelf.

To the amazement of the lad they did not stop there. They went on over
the edge of the precipice and something white fell down, down, to a
rocky bed below. As the white thing shot through the air a shriek of
terror echoed over the canyon, and then all was still.

Case watched and listened with a wildly beating heart. The horse and
rider had certainly gone down the precipice! He awoke Don and told him
of what he had seen. Don looked serious.

“It is the ghost of the canyon,” he said. “For years, on moonlight
nights, the horse and rider have gone over the precipice. It is said
that a rider met death there years ago, and that his bones, and the
bones of his horse, were found at the bottom of the precipice by a
hunter. For a long time no one would come within sight of that shelf at
night.”

“I don’t believe in ghosts!” Case asserted. “I don’t believe it was a
ghost at all! It is some trick to drive us away!”

“But the sight has been seen for a long time—years before we ever
thought of coming here,” urged Don.

“You don’t actually believe in it?” asked Case.

“There is something strange about it,” was all the boy would say.

“Will it ride again to-night?” asked Case. “If I thought it would I’d
sit up and watch for it. I’m interested in this ghost.”

“It is never twice seen on the same night,” Don replied. “In fact it
comes only when the moon reaches just such a position in the heavens.
Always when the rider moves down the ledge you will see the shadow of
that granite monument resting on the white boulder which nestles like a
setting in that cliff.”

“Who compiled all the ignorance there is in the world regarding ghosts?”
Case grinned. “I guess if people got a chance to return to earth after
death, they wouldn’t be monkeying around in fool ways like that! This is
some trick! You’ll see if we don’t get to the bottom of it before we go
away! Headless horse, and headless rider! Why, even Captain Joe knew
that they were not ghosts, for he woke me up growling at them!”

“Where is he now?” asked Don, looking around for the dog.

“He was here a minute ago,” Case replied. “He is not far away.”

“Don’t let the ghosts get him,” laughed Don, and went back to his bunk.

Case did not go to sleep. He was wondering if there really were people
who actually believed in supernatural visitations! Reared in the hard
school of the streets, he had long ago learned to accept nothing as true
which did not comply with the standards of the knowable.

He wondered, too, where Captain Joe had taken himself off to. Usually
the dog remained close to the boat at night, so his sudden disappearance
was a puzzle to the boy. He whistled softly, but the dog did not come.

Then Case remembered the remarks Alex had made concerning the moonlight
and the ghost nights. The lad certainly would be ripe for a visit to the
bottom of the precipice. Case did not know what he might find there, but
he had his suspicions as to what had gone down!

Alex kicked out vigorously and rubbed his eyes sleepily when Case shook
him up in his bunk. He had no thought of getting up! Then Case whispered
in his ear—whispered because he did not want the others to awake and
learn that they were going away on a ghost hunt!

“The ghost walks!” Case rumbled in the boy’s ear!

“Leave mine in my pocket!” Alex yawned. “Where is he?”

“Not the money ghost,” Case snickered, “but the ghost that falls off
mountains without being injured, and rides about the country with his
head under his arm, or somewhere else out of sight. Get up!”

“Me for the ghost!” Alex exclaimed. “Bring him to me!”

“We’ve got to go and get him!” Case replied. “And you’d better keep
still, or the whole bunch will want to go. Get up and dress.”

“I’m dressed,” replied the boy. “I was going out anyhow as soon as the
others got to sleep. Where’s Captain Joe?”

“The ghost carried him off!” laughed Case. “Indeed he did,” he went on,
as Alex expressed disapproval. “He hasn’t been seen since the headless
ghost rode the headless horse down the bottomless precipice!”

“Wheels!” cried Alex, in derision. “You’ve got buzzing wheels!”

Case got the sleepy youngster out of the cabin and told him about the
white rider and also about Don’s account of the tradition.

“Now,” he added, “I propose that we go down the shore a little way and
climb up the slope to the foot of that precipice. You can see from here
where the shelf ends. Well, anything dropped off the break would fall
into a coulee on the other side of the ridge. See?”

“Perhaps we can get to the foot of the precipice, and perhaps we can
not,” Alex said, “but we’ll try, anyway. What do you expect to find
there? The dead ghost of a headless horse and rider?”

Case laughed and the two started away, following the river bank down
until the rise to the east ran out, and then following the coulee back
of it. In a very short time they were at the foot of the smooth wall of
rock which dropped down from the shelf above. The moon was now far up in
the sky, and its light fell directly into the canyon.

The lads looked carefully about the foot of the wall, but were not
rewarded in any way for their labor. Presently, however, Case bent over
a depression in the soil which had gathered in a corner—washed down from
the heights above—and called to his chum.

“What do you make of it?” he asked, flashing his electric on the spot
indicated. “Does that look like a ghost’s track?”

“Dog’s track!” Alex exclaimed. “Captain Joe’s track! Now what was he
doing here? But here’s another footprint!” he went on, all excitement,
“and it wasn’t made by a dog, either. Healthy ghost, that!”

“The ghost that made that track,” Case answered, “wore a No. 10 shoe
with the taps worn down so as to show the nailheads! And the shoe was
here not long ago, at that. Now, what was the dog doing with a
stranger?”

“I reckon Captain Joe has been abducted!” grinned Alex. “I’d like to see
the man that did it. He’d be some chewed up, I take it!”

“Well,” Case went on, “the dog has been captured, for here are the marks
where he pulled back as he was dragged away! And I guess it was no ghost
that did it, either. Just listen to that!”




CHAPTER XVII.—THE SUNBURST ON THE WALL.


The sound to which Case called attention was a long, quavering howl,
such as a dog in captivity will sometimes make. It sounded far away.

“There’s the proof of it!” the boy said. “Captain Joe has been taken
prisoner, and he’s trying to tell us about it. Now, how the Old Harry
did any living person get him into a mess he couldn’t get out of?”

“What we want to know, just now,” said Alex, “is where he is, and not
how he got there. The sound came from up above?” he asked.

“I thought so,” was the reply.

“Well, how are we going to get up there?” demanded the other.

The boys passed to the east of the precipice and came to a rugged
incline which seemed to lead to the vicinity of the shelf of rock from
which the ghostly visitors had apparently fallen. It was hard climbing
for those unused to such exercise, but at last they stood on a summit
which connected with the shelf farther along.

Below, five hundred feet or more, ran the Colorado river, its red waters
hidden from the moonlight except in spots, for the outcropping walls
make a view of the river from the top almost impossible. The boys could
see the _Rambler_ lying at anchor, however, and see the embers of the
cooking fire not far away. There were no lights on board the boat when
they first looked, but presently a glimmer was seen on the aft deck.

“What is it?” asked Case, mystified.

“Some one boarding the boat!” Alex cried. “The boys are asleep and
Captain Joe is gone! Now do you see why the dog was abducted? We’ve got
to get down there just as soon as we can. No knowing what may happen!”

“I guess we’re not going to lack for excitement!” Case mused. “We’ve got
out of the path of commerce, but we seem to have struck a live wire,
after all!”

“Shall we go back, or just wake the boys and go find the dog?” asked the
other.

“If we don’t go back, we may not have any boat to go back to!” Case
predicted. “The people down there are never prowling around for their
health.”

“But the boys would be all right, awake, and I hate to leave the dog in
bad company!” Alex protested.

“Say,” Case suggested, “suppose we take a couple of shots at the chaps
who are monkeying with the _Rambler_? That will wake the boys!”

“That surely will wake the boys, anyway,” was the reply, and before Case
could get his gun out Alex was peppering away at the air a few feet
above the cabin of the motor boat.

The effect, below, was instantaneous. A light flashed out in the cabin,
and then the prow lamp was turned on. Clay and Don could be seen
scrambling out of the doorway, only half dressed.

There was no one else in sight. The intruder had made himself scarce at
the instant the revolvers had been fired. It was evident that he had not
visited the _Rambler_ with the intention of attacking the boys.

“Hello, the boat!” yelled Alex, directly.

“Hello yourself!” came back in Don’s voice.

“What’s the shooting about?” demanded Clay.

“Take a run around the boat and see!” Case called back. “There is some
one hiding near there! He can’t be very far away.”

“Why don’t you come on down?” asked Don. “Where are you?”

“Looking for the ghost!” Alex called out. “Come up and help.”

Finally Clay, who had made a quick circuit of the shore near the fire,
reported that there were tracks of heavy shoes, such footgear as no one
but a heavy man would be apt to wear, all around the remains of the
fire! He asked the boys to return to the boat, but they advised a close
watch and decided to continue their search for the dog.

“Because,” Alex reasoned, “they’ll take him farther away before morning,
and, then, we want to see the ghost before he fades away at the coming
of the dawn! The ghost with big feet!”

“He’ll fade away before the coming of the dawn if I get a shot at him,”
grumbled Case. “He’s too free with our property!”

The boys heard the voice of the dog no more. Below they saw the motor
boat blazing with light, the boys stealthily on guard in the cabin.
Above, the moonlight flooded the lips of the canyon. To north and south
the great river roared away, ever diving deeper into the bowels of the
earth, as if to hide its red waters from the light of the sun.

From shelf to shelf, from coulee to coulee, from slope to slope! It was
a weary night! Many times they thought they heard the dog calling to
them. Once or twice they thought they heard voices. But always
investigation of the localities from which the sounds had seemed to come
brought no satisfactory result.

“Suppose we go back to the boat?” asked Alex.

Case threw himself down on a rock, yawned, and pointed to the western
lip of the big canyon. It showed a tinge of pink.

“It is time, I think,” he said. “This light is not that of the moon, but
of the sun! We’ve been all night blundering around here!”

But it was not possible to reach the boat in a few minutes. The lads
were far up the east side of the canyon, and the path to the bottom was
long, winding, and uncertain. They had wandered far to the north, too,
and the location of the boat was hidden by a rocky summit.

Below them lay the level filling in front of the old copper mine. At the
northern extremity of the fill stood a single shack, built of the boles
of yellow pine and roofed with shingles rough-hewn from the same useful
tree. Case pointed down and gave his chum a nudge in the ribs.

“Uncle David’s home!” he said. “The deserted shack!”

“Deserted!” echoed the other. “If it is deserted, tell me what the
dickens the chimney is smoking for?”

What the boy said was true, for a thin column of smoke was ascending
from the chimney of the old mine house, supposed to have been deserted
by mankind long ago!

“Suppose we go down and make a social call?” suggested Case.

“It would be all right to find out who lives there,” Alex agreed.

“Probably some old hermit, like Don’s uncle,” Case ventured.

“Yes, probably; still, it may be the headless ghost! What do you make of
that ghost business, anyway?” the boy added.

“I think it is easy enough to solve that puzzle,” Case replied. “Some
man rode a horse down that shelf. Both were sheathed in white except
their heads, which were wrapped in black. When they reached the end of
the shelf the white garments, or blankets, or whatever they were, were
tossed down the precipice. Then the black-clad horse and man went softly
up the shelf again. There you have the solution according to Sherlock
Holmes’ methods! Now, who is it that is playing ghost, and why is he
doing it? That’s the question now.”

“But we went to the bottom of the precipice and found nothing white
there. How do you account for that, wise one?”

“But we found footprints, didn’t we? That shows that there was some one
there to-night, doesn’t it? And we found tracks showing that Captain Joe
had been seized, muzzled, and dragged along, didn’t we? No ghost would
do that! Circumstantial evidence is good in this case, but it wouldn’t
convict the ghost of falling over the ledge or of stealing the dog,
because, you see, there is proof that some other person had a chance to
do these same things! Do you understand me?”

“All right, figure it out to suit yourself,” Alex agreed. “Perhaps
you’ll be able, after a time, to reason out the purposes and personality
of this false-alarm ghost, and to release the dog by induction!”

“I half believe you think there is a ghost here,” Case argued, half
provoked at the mental attitude of the other. “Don’t you, now?”

“I certainly do not,” was the answer. “What I object to is your lofty,
cocksure manner of accounting for everything. Here you go ahead and
explain the events of the night as if you had seen every move made. But
you may be right! Really, I half believe you are, and I’m sorry I didn’t
beat you to it by figuring the thing out for myself!”

“Well, then, as we agree on the ghost matter, suppose we go down to the
house and see who is there? Perhaps the occupant of the shack will
invite us to eat! I’m hungry as a wolf, and then some.”

As the boys were about to descend to the level space in front of the old
mine bore, Case caught Alex by the arm and pointed to the opposite wall
of the canyon, some distance away. There was excitement in the boy’s
tone and manner as he said:

“You remember the sunburst on the paper?”

“I should say so,” replied Alex. “I’ve got a copy of it right here with
me. Why do you bring that mystery up now?”

“There’s a sunburst over there on the smooth wall!” Case said. “The sun
shines on the rocks so as to produce the effect of one, anyway.”

“You’ve got to show me!” Alex exclaimed, with a provoking grin.

Case took out his watch and noted the time. Six o’clock.

Alex, puzzled, held the paper he had taken from a pocket out to his
chum, asking:

“Six o’clock, you say? Now, look here! On this paper there is a figure
six marked by the side of the drawing of the sunburst exactly at the
point where the sun now strikes the sunburst on the wall. What does that
mean?”

“Well,” Case answered, scratching his head, “there is a seven below the
six. We’ll see if the seven stands in the same relation to the sunburst
that the six does.”

“What do you mean by that?” asked Alex. “I don’t understand.”

“Look here! The figure six marks where the line of sunlight lies on the
wall at six o’clock! That’s easy, isn’t it? Does the figure seven stand
so as to show where the line of sunlight will lie on the wall at seven
o’clock? Do you get that, muddlehead?”

“Well, what of it? I don’t see no sustenance in that?”

“Look at the other paper?” suggested Case. “Look at the big ‘X.’ That
means ten o’clock, what? Suppose it means ten o’clock? Does that give
you no idea? I guess you’re dense this morning, kid!”

“My head is so empty that it rattles, just as my stomach does!” Alex
replied. “I don’t know a thing!”

“Well,” Case went on, “I’d like to be here at exactly ten o’clock and
see where the line of sunlight lies on the wall then!”

“Oh,” cried Alex, “you think the papers point to time! When the line of
sunlight reaches ten on the wall, as shown by the paper, a door will
open and a troop of trained bankers will issue forth bearing chests of
gold in their hands. Something like that, old chum? Do I get you at
last?”

“No use trying to explain anything to you!” Case replied, turning away
in a rage. “You’d better run back to the boat before you get lost.”

“Now, don’t get a grouch!” laughed Alex. “You know what I mean. When ten
o’clock comes the line of sunlight will lie over the place where Don’s
uncle hid something. Is that your idea?”

“Exactly!” was the reply. “Why didn’t you say that before, instead of
giving out fool talk about trained bankers?”

“Then we’ve found the treasure!” Alex cried, eagerly.

“That depends,” answered Case. “We’ll come back here at ten this
forenoon and see where the line is. There may be a cross on the wall
there, or there may be a rock formation which resembles an ‘X.’ We’ll
have to investigate. But wouldn’t it be fine if we could dig up this
secret while Clay and Don were puzzling over it?”

“Indeed it would! But suppose we go down to the shack and see what kind
of people live there. There may be something to eat in it!”

“If I had your appetite,” Case grumbled, “I’d go somewhere and run a
restaurant! You’re either hungry or sleepy all the time!”

The lads laughed at the idea of Alex owning a restaurant, and scrambled
down the slope to the level dump where the shack stood.

Smoke was still coming from the chimney. The windows had been covered
with boards, securely nailed on, and the boys found the doors locked
when they, after knocking, tried to enter. Circling around the shack,
which was of good dimensions, they finally discovered a small door which
was unfastened, and through this they entered.

They passed, with their electric lights on, through what must at one
time have been a storeroom, came out in an old kitchen, passed on to a
sitting room, which faced the front of the shack, and stopped to listen.

The smothered breathing of a dog came from an adjoining room, and they
hastened to open the door. Captain Joe was tied up with a chain to a
hook in the wall, the chain so short that he could not move more than a
few inches. His head was covered with a heavy burlap bag, which was tied
tightly around his neck.

When released and caressed, the dog appeared to be dazed, and the boys
saw at once that he had been doped with some stupefying drug. This
undoubtedly accounted for his being in captivity. In his usual health
the dog would have made the tying of him up a difficult and dangerous
proceeding. After a time Captain Joe lay down and rubbed the sides of
his head with his paws, as if he had a very bad headache!

In the room where the dog was there was a bed, rumpled and dirty, and a
couple of chairs. Under the bed was a pair of heavy boots, and Alex
whispered to his chum as he looked at them.

“Big boots,” he said, “and the taps have been worn so that the nails
protrude. Our ghost wore them, all right.”

Case went to a closet and began rummaging about. Presently he came out
with a couple of milk-white sheets and a couple of black bags with eye
and nose holes in them.

“We have either struck the home of a train robber or a ghost!” the boy
said. “I’d like to know which!”

“You are likely to be informed soon,” Alex replied, “for there is some
one coming in at the front door right now!”




CHAPTER XVIII.—CASE AND ALEX UNDER ARREST.


Clay and Don remained awake after the shooting. They kept the lights
burning and waited anxiously for the return of Case and Alex, but they
did not come.

While they waited Don told Clay the story of the headless horse and
rider, expressing the opinion that the boys had gone out on a ghost
hunt!

Clay was all interest in a moment, and indignant, too, because he had
not been called in time to view the ghostly procession.

“That’s just what the boys have done!” he agreed. “They’ve gone off in
search of that ghost! I’d like to be with them!”

“All the ghosts they find won’t fat them up any,” laughed Don.

“But they may solve the mystery!” Clay insisted. “That will be worth
while, won’t it?”

“Of course! Now, I have an idea where they will bring up,” the lad went
on, “and I suggest that we head them off as soon as it is daylight. The
boat will be safe in the daytime, I think.”

“Where will they go?” asked Clay. “I’d like to surprise them.”

“If they follow along that shelf, after once getting to the top of it,”
Don went on, “they will come out in time near the old mine, at the shack
where Uncle David lived so long. They will go into the house and look
for the ghost. Let us get there first!”

“All right! We’ll go just as soon as it gets light.”

But with the first glimpse of the summer sun came two husky men in a
shell of a boat. They rowed up to the shore and stepped out close to the
place where the _Rambler_ was anchored. They were rough-looking fellows,
with half-breed faces and cruel black eyes. The boys felt for their guns
as they approached, although their movements were intended to be
friendly.

“Hello!” one of the men shouted. “Hello, strangers!”

“Come aboard,” Clay said, thinking that he could do no less than invite
the unwelcome guests to join in a cup of coffee, as the beverage was
then bubbling on the electric coils at the back of the cabin.

The strangers re-entered their boat, pushed over to the _Rambler_, and
mounted to the deck, their snaky eyes taking in every detail of the
craft as they did so. Clay served them coffee and such food as had been
prepared for breakfast, and waited for them to make their business
known. At length one of them broached the subject.

“You’re Don Durand?” he asked, facing the boy.

“Yes; but how did you know that?” answered Don.

“I was about here when you lived with Dave.”

“I don’t remember you,” the boy said, suspiciously.

“I’m Flint,” reminded the other. “I worked in the mine for Dave.”

“I was a little chap, and didn’t know the miners,” Don hastened to say,
for he was nervous under the evil eyes of the fellow who called himself
Flint and claimed acquaintance.

“Uncle died after you left,” Flint continued, and Don nodded.

“You’ve come back to look up his property?”

Don hesitated, but decided to tell the exact truth.

“I came back to see the country, and if there is anything here that
belongs to me I’ll take it away with me.”

“There’s nothing here,” Flint said, with a scowl. “A man named Frost
came and took everything there was in the house.”

“And the papers?” asked Don. “Where are they?”

“He took them also. He hunted for a buried treasure until he got the
whole county to laughing at him! I reckon Dave didn’t have any treasure
to hide when he died! He was as poor as the rest of us.”

“I’m going to look through the old house,” Don said. “There may be
something there this man Frost overlooked. By the way, I think I know
this man Frost. But what right had he to come here and remove the
property?”

“He had some kind of a writing, he said. I never saw it.”

“Do you know where he came from?” asked Don, then. “From Chicago?”

“He said he lived in Chicago,” was the evasive reply.

“Well,” Don concluded, “I’m going to tear the old house down, if it is
necessary to do so to find the papers I want.”

“The old house belongs to me and Ike, here,” with a nod at his
companion, “and we wouldn’t like to have it torn down.”

“Who gave it to you?” demanded the boy, angrily.

“I got it from this man Frost. He sold it to me. I let Ike in on a half
interest, so, as I was sayin’, I wouldn’t like to have it torn down—not
right away! In fact, I’ll shoot any person that even tries to get into
it. Nothing personal, lad! I just speak generally.”

“Will you give me permission to look through it?” asked Don.

“I can’t see as it would do you any good to look through it. There is
nothing there but dust and a few living things, such as dishes and the
like. You wouldn’t care to see them, I take it.”

Don was about to make a hasty reply, but Clay seized him by the arm and
drew him to one side. The boy was shaking with anger.

“Keep cool!” Clay warned. “We’ll get into that house, all right, but
we’ll do it without permission from him.”

Flint and Ike went away while the two boys talked together. When they
had disappeared down the river, the lads finished their breakfast and
prepared for a visit to the old mine. It was nearly seven o’clock when
they came within sight, from the south, of the building. They had been
climbing for three hours or more.

At first they saw no one on the old dump, but before long they saw a
heavy, flabby man in a broadcloth coat and silk hat working away at the
front door of the house. Don’s voice shook as he said:

“That’s Josiah Trumbull! I guess he’s got me at last!”

“Looks more like you had him!” Clay retorted. “He seems to have a key to
that door. I reckon he’s been here before.”

“A good many times!” Don replied. “Too many times!”

“I wonder if King is anywhere about?” asked Clay. “I don’t think
Trumbull came here alone. I hope he’ll get kicked out of the house, if
he gets in!”

Trumbull unlocked the door and swung it open. The house was in the
shadow, for it was on the east side of the canyon, but there was a
strong light across the great cut, where the morning sun was shining on
the rocks. Trumbull stopped in the doorway, lighted a cigar, drew a long
breath and turned to enter.

Then two quick shots came from the interior, and Trumbull crinkled up on
the slice of stone which stood for a platform in front of the door.
Thinking only of the tragedy which had taken place before their eyes,
and not of themselves on their own safety, Clay and Don ran forward and
bent over the fallen man. They saw in a moment that he was quite dead.

Then Case and Alex came rushing through the doorway, the latter carrying
a smoking revolver in his right hand, his face white and pinched.

“Great God, lads!” Clay shouted. “Why did you do it? Why didn’t you
wait? Why did you do it?”

Alex threw down the weapon and was about to make some reply when he was
grabbed from behind. In an instant steel handcuffs were on his wrists as
well as those of Case. There was no struggle. The boys were too dazed to
resist and Clay and Don were too dumfounded to say a word.

Then, in another moment, King, Flint, and Ike appeared beside the body,
bending over it, and Clay and the others dumbly realized that it was
King who had manacled their chums.

“You’re caught with the goods!”

The man who had been called Ike was the speaker, and there was a note of
triumph in his tone.

“You boys went too far this time. I’m sheriff here, and I saw the
shootin’.”

“What does it mean?” asked Case. “Neither one of us did the shooting.
Alex’s gun lay on a chair, and we missed it, and the next—”

“That will do for you!” broke in Ike. “Tell it to the judge.”

“Let him talk if he wants to,” King said, lifting his eyes bravely to
the accusing ones of the boys. “He has a perfect right to make any
statement he desires to make.”

“You’re a new one on me!” the man who had been called Ike said, with a
scowl at King. “Who are you, and how did you get into the house? I saw
you running, too, when the shots were fired.”

“I came here with Trumbull,” was the reply. “He went to the front door
to get in, while I walked around to the rear to see what was going on
there. I had noticed a window up when we approached.”

“How do we know that you didn’t do the shooting?” demanded Clay.

“The truth will come out in the end,” King said. “I was in there when
the shots were fired, and so were these men. Who are they?” he asked,
addressing his conversation to Clay.

“I’m the sheriff,” declared Ike, “and this man and me own the house. We
seen the boys do the shootin’. Yes, we’ve got a clear case.”

He picked up the revolver Alex had thrown down.

“Is this yours, kid?” he asked.

“Yes,” was the dazed reply.

Ike whirled the cylinder, showing two empty cartridges. Then he put the
weapon into his pocket with a grin.

“I guess that settles it,” he said. “We’ll take ’em to jail!”

“I never shot him!” Alex cried out. “I laid my gun down on a chair while
I wrestled around with the dog, getting the bag off his head, and some
one picked it up and fired! Next time I saw it, it was lying on the
floor in front of the door to the side room, and I picked it up.”

“I saw you with it in your hand, a moment after Trumbull fell,” King
said. “These men appeared in a moment, and must have seen you there,
too.”

“Indeed we did,” Flint cut in.

“But you don’t believe he killed this man?” Clay appealed to King.

“It looks bad!” was the answer. “It looks bad, boys!”

“You’re prejudiced,” Clay said. “You’ve been sneaking around after us
ever since we came on the river! You stole on board our boat, too, and
tried to rob us. I believe you did the shooting yourself.”

Clay was angry and excited. His eyes flashed and his cheeks flamed as he
accused King. The deputy made no direct reply, but stood looking at the
revolver and at the prisoners.

“Well, we may as well take the boys to jail,” Ike suggested. “We’ve got
a long climb to the top, and some distance to go after that.”

“If the people about here get wind of this cold-blooded murder,” Flint
cut in, maliciously, “there may be a necktie party, so you’d better get
them in a safe place as soon as possible.

He stared at Clay and Don as he spoke, and finally turned to the
sheriff, who was moving closer to the boys, a triumphant look in his
eyes.

“I think it might be well to take these two with the others,” he
remarked, including Clay and Don with a swing of his long arm. “If I
make it out right, this is a conspiracy-to-murder case, and these other
lads are just as guilty as the others. Bring ’em along, Ike.”

Clay and Don sprang back as the sheriff approached to do the other’s
bidding, but King interposed, preventing the advance of the other.

“Wait a minute!” he said, coolly. “Don’t move, boys,” as the two
continued to retreat, evidently resolved to gain the boat. “This is my
case, and these are my prisoners. I made the arrest, you must remember,”
he continued, turning to Ike. “You can’t take them away from me!”

“Your prisoners!” shouted the sheriff. “We’ll see about that! Who are
you? I’m the sheriff here! Keep away, or I’ll do something you won’t
like! Keep away,” as King stepped forward.

King, perfectly calm, indeed, with a cynical smile on his face, took a
long, folded document from a pocket and held it out to Ike. There was a
moment’s pause, and then the other took the paper and glanced at it.

“You see,” King went on, with provoking composure, “that I am a deputy
sheriff in this county, the same as you are. This commission gives me
the same powers that you have, if you really are a deputy! Now, these
are my prisoners, and when I require your help I’ll ask for it.”

The boys were still prisoners, but, somehow, Clay felt greatly relieved
at the change in the situation. He regarded King as his enemy, but of
two evils he considered him the least. Flint and Ike slunk back and
stood glowering at the little group.

“I arrest the four for trespass!” Ike finally roared. “I’ll take them to
jail for that, and you can’t stop me!”

“They are all my prisoners,” King insisted, “and I’m going to take them
back to the boat. If you are an officer, you may summon the coroner and
have him empanel a jury. And one of you would better remain with the
body, without disturbing it in any way, until the coroner comes.”

“Are you really going to take us back to the _Rambler_?” asked Clay, his
attitude toward King changing instantly. “You’re a squarer man than I
thought!” he went on, “and I’ll withdraw all I said against you a minute
ago! You won’t lose anything by giving Case and Alex a chance to show
that they didn’t do the shooting!”

“No officer ever loses anything by being fair,” King said. “Now,” he
went on, “I’m trusting to the honor of you boys, and I want you to do
the right thing by me. I’m going to take off the irons and let the
prisoners move about as they please, and—”

“If you do,” roared Ike, “I’ll have a man down here to watch ’em! I’ll
have the boys out for a lynching! I’ll show you that no eastern sleuth
can come here and run this county.”

“Will you remain here while this other man goes for the coroner?” asked
King, paying no attention to the threats of the angry man.

“It is my duty,” answered the other, sullenly.

King unlocked the handcuffs and told the boys to wait while he entered
the house. He was gone some minutes, and when he returned his face
showed more excitement than the boys had ever before seen there.

“Come on, boys,” he exclaimed, without noticing the others, “we’ll get
back to the _Rambler_. It has been some time since I have been aboard
the good old craft.”

“I hope they’ll get away from you!” howled Ike.

“I’ll see that they don’t get out of the country if they do!” Flint
cried out. “I’ll see that they get what’s coming to them!”

Without paying the slightest attention to the oaths and sneers of the
two, King and the boys moved off down the incline, and, after hours of
hard walking, came out on the bank where the _Rambler_ lay.

“Now,” King said, as they all stood looking at each other with
questioning eyes, “we’ve got as strange a murder case to handle as ever
Holmes undertook to straighten out!

“It looks black for you two lads, but I’m going to see that you get a
fair show!”

There was a smile on his face as he spoke!




CHAPTER XIX.—TWO GUESTS FROM CHICAGO.


“Why does it look worse for us than for the two men who were in the
house with us?” asked Clay. “They had as fair a chance to do the
shooting as we did, and they are none too good to shoot a man in the
back!”

“But Alex’s gun is the one that did the work,” King explained, still
smiling, “and he came out of the house, an instant after the man fell,
with it, still smoking, in his hand! You’ll have to account for the gun
getting away from him, and then back into his hand the next instant!”

“I can do that, all right,” Case hastened to say, motioning to Alex to
keep still. “When we went into the house we found Captain Joe tied up in
a sleeping room off the sitting room, at the front of the house. There
was a heavy bag tied over the dog’s head, to keep him still, I suppose,
and Alex laid his gun on a chair by the door of the sleeping room while
he took the bag off.”

“Was the chair in the sitting room or the bedroom?” asked King,
critically.

“It was in the sitting room, and Alex put it there because he rushed for
the dog the instant we saw him in that plight, laying his gun, which he
carried in his hand, on the first convenient thing he came to. It was
dark in the house, with the windows all nailed up, and I was carrying an
electric flashlight.”

“Where was the gun the next time you saw it, Alex?” asked King, gravely.

“It was on the floor, just outside the sleeping room door. I didn’t see
it after I laid it on the chair until the shots had been fired. When I
picked it up it was smoking. Some one grabbed it and fired, then threw
it on the floor. It was done to get us into trouble!”

There was a short, gloomy silence, and then Clay asked:

“Mr. King, where were the men when you entered the house?”

“I did not see them when I first entered,” answered the deputy, with a
quiet smile. “They were somewhere ahead of me.”

“When did you first see them?” questioned Don, in a moment.

“I was in the room back of the sitting room when the shots were fired
and I naturally rushed forward, thinking that Trumbull had been foolish
enough to do some shooting. When I passed through the rear door to the
sitting room, the two men were in a back corner of the apartment, and
Alex stood in front of the sleeping room with the smoking gun in his
hand.”

“Did you hear any noise after the firing of the shots?”

“Several. Tell me the sort of noise you refer to.”

“A noise like the sliding of a metal substance across a bare floor.”

“You have the detective instinct, son,” King replied, with a grin. “Yes,
I did hear a noise which might have been made by a gun sliding across a
bare floor! But we’ll talk of that later. What I want to know now is
what these men said to you boys this morning.”

“So you know of that, too?” asked Clay, in amazement.

Very briefly the boy then told of the morning interview, adding:

“They said they’d shoot any one who tried to enter the house.”

“But why are they guarding the house?” asked Case. “Why did they shoot
Trumbull when he entered? They must have a notion that there is
something of great value hidden there.”

“That’s the idea!” King agreed. “They think there’s a third paper
somewhere in the shack! What do you think about it, boys?”

“Say!” Alex broke in. “We found the sunburst and the big ‘X’ this
morning! If you’ll go at ten some day where we were at six, you’ll see
something! We just happened to notice the wall, when we came to the top
of a shelf, and there the things were!”

“And so you think you can find the treasure—if there is one hidden
here—without the aid of the third paper?” asked the deputy.

“I can tell you better after I see where the sun-line touches the
formation we called a sunburst at ten o’clock,” Alex answered.

“I’ll go with you to-morrow at ten o’clock,” King declared.

“I should think you’d be taking us to jail!” Alex grinned.

“You ought to be taken to jail for breaking into that house,” King
laughed, “but if you’ll go get fish enough for us five and a couple of
more fish-hungry people, I’ll let you remain at liberty a little
longer!”

“If you think I’m going to catch fish for those big stiffs, you have
another think coming!” Alex answered. “I’ll catch fish for you, but not
for the others!”

“Other people came in here with me,” King went on. “They’ll be here
directly, I think. There! That’s their knock, now!”

The “knock” was the sharp report of a pistol. King started away in the
rowboat, leaving the boys gathered on the deck of the _Rambler_, all
anxious to be moving, yet not caring to swim ashore.

Directly the officer came back around a bend in the wall of rock. In the
boat was a man Don recognized on the instant.

“That’s Myron G. Frost, the manager of the bank where I worked!” he
explained. “I guess he’s come out after me and the handbag!”

“Where do you think he came from?” asked Case. “How long has he been
prowling around here? You don’t think he’s the ghost, do you?”

All these questions were asked at random, and to no one in particular,
as King rowed the banker to the _Rambler_. Don moved back as Frost
stepped on the deck, but the banker seized the boy by the hand and gave
him a friendly little shake.

“You little runaway!” he cried. “I’ll keep track of you after this.”

“Where’s the use?” asked Don, dolefully. “I’m going to be put in jail
for murder!”

“Poor Trumbull!” said Frost. “He was a crook, but he was trying to do
the right thing when he was shot down! That was a brutal crime!”

“But you can’t lay it to me!” Alex declared. “I didn’t do it!”

The banker looked at King questioningly.

“Don’t they know?” he asked, and King smiled and shook his head.

“Flint did the shooting,” the banker said, then. “King and I came near
seeing it done! We came to the door of the sitting room at the moment
Flint was sliding the gun over the bare floor to the place where Alex
found it. We, Trumbull, King, myself, and—well, one more!—came up here
together last night and camped out not far from the old mine, with
others! We saw you boys entering the shack, and King and myself followed
on after you, while Trumbull went to the front door to head you off if
you tried to run away from us.

“You see,” continued the banker, with a smile, “we did not know exactly
what view you would take of our following you up here! I came near going
to the front door, instead of Trumbull, but he had the key and thought
it advisable to go that way in, himself. If I had, I presume I should
have been shot, just as he was. My idea is that you boys would have been
murdered, too, for the men who did the shooting are suspicious of any
one who even looks at the old shack.”

“Why didn’t you tell us of this before?” asked Alex, turning to King.
“You scared me out of a year’s growth. I don’t think I’ll ever get over
it!”

“I arrested you for two reasons,” King replied. “One was to keep the
murderers from doing it. The other was to prevent the murders
discovering they were known to be the guilty ones. If I had done
otherwise, there might have been more shooting, or there might have been
a rush on their part to get away. I’m sorry if I frightened you, boys,
but the scare didn’t last long!”

“The men may get a hunch, even now, and make off,” Case put in.

“You heard that shot, a few moments ago?” asked the deputy.

“Yes; of course we did—and thought some one was shooting for our
benefit! What about it?”

“That was the signal that the men are under arrest.”

“But who did it? Say!” Alex blurted out “You make me weary! I’m all up
in the air! Who arrested them? Where was this audience when we entered
the house? How many of you came in here?”

“Trumbull, King, a couple of officers, and myself—and another!—came
together,” the banker explained. King sent Flint off after the coroner
in order to get the two apart. I have no doubt that each has confessed
on the other before this. They are bad men when well backed up, but
cowards when alone, I am told. Now, what about the third paper?” he
added, with a sly smile. “Have you found it yet?”

“It is up there under the ‘X’ near the sunburst!” Alex insisted.

“There is supposed to be a glorious nest of ore under the sunburst,” the
banker remarked, “but the third paper is in my possession! If Don hadn’t
got out of Chicago so quickly, I should have told him about it, and also
saved him a lot of trouble!”

“Trouble!” echoed Don. “Why, I’ve had the time of my life! But I don’t
see what got you interested so suddenly, Mr. Frost,” he continued. “It
was good of you to come out to us, but it must have been a great
inconvenience to you. Why did you do it? Did King ask you to come?”

“There was a thin little lad came to the bank, one day, lately, and told
me about an old house at Yuma, and what had happened there, and about
King, and all the rest, so I wired King, and we met on the road. It was
the lean little boy who brought me out here!”

“And it is the lean little boy who wants a fish dinner!” cried Tom,
dashing out of a hiding-place in the rocks, above the _Rambler_, yet not
so very far away. “Who’s going to catch those fish?”

“Tom, you rascal!” shouted Don. “Come down here and give an account of
yourself!”

The lad was soon on board, and the subsequent ceremonies of reception
caused King and the banker to shake their sides with laughter. The boy
was pulled about and mussed over, and hugged until it seemed that there
would be nothing left of him! Captain Joe and Teddy looked on in wonder.

“Now,” Clay remarked, when the physical reception was all over, “I’m
going to catch some fish. You see that swirl down stream? Well, there’s
a big one in there waiting for me. See me get him.”

Clay and Don took the rowboat and dropped down with the current. The
river was fairly smooth where the _Rambler_ lay, but farther down there
were obstructions which threw the current over to the west, making a
treacherous passage for a small boat. Those on the _Rambler_ saw the
boys drop down to the fishing ground, and then gave their attention to
the work of the day, which they discussed gravely for a long time.

When Frost brought out his “third paper” it was discovered that it did
not describe the actual means of getting into the mine which David
Durand had discovered years before, or even what was in it! told of the
bonds in the old house at Yuma, and mentioned the mine, but said that
those who found it should receive the proceeds thereof!

So the location of the wonderful mine was as much of a mystery as ever,
except that the boys believed they had come pretty close to it in
discovering the formation which resembled a sunburst on the canyon wall!
It was decided that the bonds and the $50,000 belonged to the Durand
boys, the money having been taken from their uncle. The mine was to
become the property of whoever found it!

“I’m going up to the summit to take a look at that wall again,” Alex
declared. “I can’t get there by ten o’clock, but I can look it over!”

“And I’ll go with you!” Tom insisted. “I want to see the place where our
fortune is.”

“Why not three?” asked the banker. “I want to get a look at the cliff
now, as we may have to blow it down to find the ore!”

So the three went away, and Case and King set about getting ready for
the return of Alex and Don with the fish. Some moments before the lads
had slipped around an angle in the canyon, so they were not in sight.

“Suppose we drop down and see if they are there?” suggested Case.

So the _Rambler_ was swung down around the angle. There a surprise
awaited the occupants. The rowboat was there, far over on the west side,
crushed and broken, washed up on a rocky shelf, but the boys were
nowhere to be seen!




CHAPTER XX.—A JOURNEY IN THE DARK.


“I’ve a hunch,” Don said, as the boys rowed off after fish, “that we
would better land on the east shore, at the point where others have
beached the boats, and try our luck fishing off the bank. That current
looks ugly to me!”

Clay, who was rowing in order to give steerage way, rested a moment and
looked over his shoulder at the water, sweeping toward the west shore
with resistless force. The Colorado river, in passing through the Grand
Canyon, makes many sharp turns in drift because of great rocks which
have tumbled down from the cliffs, and so block the flow, turning it
aside in angry swirls. It was one of these eccentricities the boys
faced.

“There’s where I want to fish!” Clay explained, bending to the oars
again. “Keep her over to the west, and we’ll get a big one in that deep
pit next to the shore. If we ease along with the current, we won’t tip
over. Don’t let the current strike her on the side!”

But the current did strike the boat on the side, struck her like a shot
and whirled her round and round. One oar was twisted out of Clay’s hand,
and Don lost the paddle he was steering with.

“Hang to the boat!” shouted Clay, and Don clung like death to an oarlock
as the boat went over, half filled, righted, and swung toward the west
shore. Striking a rock near the shore, she turned turtle, but the boys
held on, and were dashed out of water where the current beat against a
narrow beach which lay between the shoreline and the cliff.

Clay scrambled up, limping, and Don made his way farther up holding his
right arm with his left hand. The former caught the boat as the wash
moved it toward the current and drew it up on the shore, a
dilapidated-looking craft, with the prow on one side crushed in!

“We are having great luck with rowboats!” Clay said, viewing the craft
whimsically. “We ought to buy ’em by the dozen!”

“The boat be hanged!” Don grunted, rubbing his elbow, “what we need is a
dozen lives! Say, but that was a dump!”

“Cheer up!” grinned Clay. “All we’ve got to do now is to swim a mile or
so across the stream and get back to the _Rambler_! We’re stranded on a
desert coast, with nothing to eat and nothing to catch fish with!”

“Perhaps we can follow the shore up and attract the attention of the
boys,” Don suggested. “I can’t swim across!”

“I don’t believe the _Rambler_ can get over to this shore,” Clay said,
looking over the mass of broken waters. “There’s more than a million big
rocks in there. You know, we kept off this shore when we came up.”

“Well we can walk up and see what the chances are,” Don grunted.

But the lads did not walk up very far before they came to a cliff which
stood out flush with the water, and against which the current thundered
with a sound like the booming of heavy artillery. To the west the canyon
wall rose sheer a thousand feet.

“Right here is where we get ours,” Don exclaimed. “A fly couldn’t climb
up that wall! We’ll have to wait here until the boys look us up.”

“It won’t take them long to find the broken boat!” Clay mourned.

“And they’ll want to know about the fish for dinner!” Don finished, with
a grin.

The cliff which blocked the narrow beach set out from the main wall of
the canyon like the leg of the letter “L,” and the lads sat down in the
angle to dry their clothes in the hot sunshine. In a moment Clay sprang
to his feet and began running up and down the beach.

“That’s the first symptom!” Don grinned. “You’ll be fit for the foolish
house in an hour or two. Go on and play you’re an aeroplane and lift us
both out of this!”

“Where does this cold wind come from?” asked Clay, paying no attention
to the facetious remarks of his chum. “There’s an open passage in the
west wall here! Can’t you feel the current of air?”

“I certainly can,” Don answered. “Perhaps it comes from above!”

“No, sir! It is right down here in this angle—the opening, I mean! And
it is a strong current of air, too, so it must come from some canyon to
the west. The rocks are piled in here in all kinds of shape, anyway.
When the Colorado bored down, it upset things and left lots of layers
standing on end. Here! See that little opening? Well, there she blows!
Little bit of a hole for so much wind.”

“Just like a campaign orator!” Don commented.

Clay looked at his friend reproachfully and crowded into the aperture,
which was formed by two layers of rock, stacked up on end, as he had
before expressed it, much farther apart at the bottom than at the top.
The passage was about four feet in width, and not much more than that in
height. The bottom was covered with a fine sand, laying in wrinkles, and
showing the action of running water.

“You see,” Clay observed, pointing down, “this is a water channel at
certain seasons of the year, so it must lead to some open place.”

“You’re never going in there!” shouted Don. “How do you know what kind
of wild animals you’ll run against?”

“Of course I’m going in,” Clay replied. “For all we know, this hole
leads to a parallel canyon which we can ascend to the vicinity of the
motor boat. If we had our searchlights it would be a picnic.”

But their searchlights were on board the _Rambler_, and so it was
anything but a picnic the boys had following the dark passage. The walls
brushed their elbows at times, and occasionally they ran their heads
full tilt against the roof of the cavern, but the floor, being at times
the bottom of a torrent, was comparatively level, except that it mounted
up at an angle of about twenty-five degrees.

The atmosphere was remarkably pure, for the cool wind which had
attracted Clay’s attention to the opening, continued to sweep through
the passage, but it was dark—wretchedly, miserably, uncannily dark, and
the boys imagined many times that they heard the warning growls of wild
animals or felt the touch of slimy reptiles. Twice they came to places
where their progress seemed blocked, but these were only twists in the
rock, and directly they found their way on again.

Presently, at his very feet, Clay heard the rush of water, and halted.
The boys stood together for a time and listened. It was falling and not
running water they heard. Somewhere in the interior of the mysterious
passage, there was a waterfall.

“If we only had a light!” wailed Don. “We’re likely to break our necks
or get drowned if we go on without one.”

“You just wait a second!” Clay announced, gleefully. “I’ve got a few
matches in a water-tight case! Why didn’t I think of them before? I’ve
carried them with me ever since we left Chicago, and never found use for
them until now. Now, suppose I’ve lost the case!”

There was a moment of suspense, and then the boy’s searching hand came
upon the smooth metal of the match case. There was a chance that the
matches would be worthless, because of the long time they had been kept,
but the boy opened the case and struck one.

A blue flame sprang up, sizzled, wound around the pine stick, and went
out. It was clear that no match flame could live in that breeze unless
better protected. Clay opened his wet coat and struck another. This one,
protected by the coat and the body of the boy, flamed up.

Then, with the stick burning brightly, Clay pushed it ahead, shielding
it with his hands as much as possible. At his feet he saw a current of
water disappearing into a hole in the bottom of the passage. Beyond that
point they would be obliged to wade!

“This accounts for the passage being dry below,” Clay said. “And it
indicates that there’s a passage under this one. The old cliff is
honey-combed with water-bores, I guess!”

The traveling was more difficult now, but the boys kept on, sloshing
through water up to their ankles. At last they saw a speck of light some
distance ahead, and gradually the passage widened out. The water,
however, grew deeper under their feet as they advanced toward the light.

“This is a blooming river, that’s what it is!” Don shouted. “If we had a
line we might catch fish in it!”

“I’ll be swimming in a minute!” Clay called back. “I’m up to my waist
now! And the current is strong enough to lift me off my feet.”

The pitch of the passage was now greater than before, and the water the
lads were wading in came down with a rush. When they got to the entrance
they were obliged to cling to the wall to avoid being carried back into
the subterranean passage.

When the boys came to the full light of day, they saw the sun shining on
a pool of clear, glistening water, which lay in a cup-like depression in
a narrow canyon sloping up to the north. Judging from the time they had
been in the passage, Clay concluded that they were at least six hundred
feet from the river, and not far from two hundred feet above it.

The canyon in which they found themselves was little better than a deep
wrinkle in the massive formation of the west shore, but it seemed to
point the way to an exit up stream. After wading the pool, which was
supplied by springs in the walls, they gained a dry bottom and proceeded
northward, still climbing.

“If this crack in the earth keeps on this way for a mile or two,” Clay
suggested, “we will come out on the wide shelf that divides the west
wall not far south of the old mine. From there we can signal to the boys
who went up there, and they can come in the motor boat and get us. We
never can swim across. In the first place, it is too far; and in the
second, the current is too strong.”

“You heard the story Case and Alex told about the sunburst on the wall?”
asked Don.

“I thought that rather fishy!” Clay replied.

“We’ll soon have a chance to find out whether it is or not,” Don
continued, “for we’ll come out on the shelf near the place they
described—if we come out on the river bank at all.”

“But we’d be too close to the sunburst and the ‘X’ to see them,” Clay
remarked. “You have to look at such large things from a distance in
order to discern them at all.”

“If we can get there some day by ten o’clock,” Don hastened to say, “we
can mark where the line of sunlight lies, and that will help some. But,”
he added, with a frown, “I guess we’re not going to get out to the river
wall by following this old scratch in the earth! Here’s where it turns
to the west! Now, what about it?”

“It may bring us to the top, anyway!” Clay said, encouragingly.

But it did not bring them to the top, for directly it ran into a cavern
not unlike that which the boys had passed through! Disgusted and
disheartened, the lads took to the tunnel and pressed on in the
darkness. The only satisfaction they felt was that they were still going
up.

“If this pitch keeps on,” Don declared, “we’ll come out at the very top
before long!”

“We’re not far from some top now,” Clay replied, “for it is getting
lighter in here, and the light comes from the roof!”

But this was true for only a short distance. It soon became dark in the
passage again. After a time, still ascending, the passage turned to the
east, narrowed, and then the boys heard the rush of the river.

“We’re getting there!” Don shouted. “Look out there!” as he peered out
of the hole. “There’s the river, and there’s the old mine, and there’s
the shelf of rock above which they saw the sunburst!”

“That’s all right,” grumbled Clay, “but if we drop out of this hole
we’ll fall into the river. The door to this blooming cave doesn’t open
out on the shelf! And it isn’t a very big door at that!”

“I’ll bet we’re in the mine!” cried Don.

“No wonder it was never found, then, if people had to reach it the way
we did!” Clay exclaimed. “Say!” he went on, in a moment, “let me get to
that opening again. I wonder if we can’t climb up out of it! I’ve seen
such places! The shelf seems to be only a few feet away, and we may be
able to gain it if we can creep on a wall like flies!”

“I can!” Don laughed. “Let me get out and show you!”

But Clay was half out of the narrow entrance, clinging to points of rock
with his fingers, digging his toes into crevices which were too shallow
for much of a hold.

“Can you make it?” Don called out, anxious and afraid for his chum.

“Sure I can! Wait until I get up on the shelf and I’ll help you out of
the passage! And, say, there’s the mine dump away up to the north, and
some one on it! I believe it is Alex and Tom. Yes, and there’s the
banker! They are looking through field glasses!”

“Give me a hand!” cried Don. “I want to be in this procession myself.
Look there,” the boy added, as he stepped up on the shelf of rock, “they
are motioning to us to stand aside! Do you know what that means? It
means that we are standing on the line between them and the sunburst or
the big ‘X.’ I reckon we’ve just come out of the mine!”

“Hello!” came a call from across the great chasm.

Clay put his hands to his mouth and called back:

“Hello yourself! We’ve found the mine!”

“Where’s your fish?” shouted Tom. “Where’s the f-i-s-h!”

“Fill your pockets with gold and jump over!” Alex shouted.

“Send the boat after us!” Don called back.

Alex made a trumpet of his hands and shouted back:

“I’ve just been up on the cliff looking for the _Rambler_. She’s gone!
There’s no sign of her anywhere. Where’s the little boat?”

“Busted!” Clay called back. “Wrecked! smashed!”

“Then you’ll have to swim!” Alex decided. “And you’ll have to be quick
about it, for there’s a lot of natives climbing up on that shelf who
don’t look very good to me.”




CHAPTER XXI.—THE CLUE IN THE ROCKS.


Clay looked quickly about, but there was no one in sight. Alex, from the
old mine dump, pointed downward, so the boy knew that the natives
referred to were near the river and working upward.

“If they get up by that route they’ll be doing something,” Don remarked.
“Never heard of any one doing it.”

“Well, there are people coming up, just the same,” Clay went on.

“Then they’re coming up to look up the mine!” Don declared. “There’s
probably been a lot of talk about the mine lately, and the people of the
county are all stirred up over it!”

“They haven’t got anything on us,” Clay grinned. “We saw it first!”

“You’re right about that, but here’s the bunch coming! Hear their
voices? Suppose we duck out of sight? Can we get back into the mine?”

“I can,” replied Clay, and in a minute the shelf where the boys had
stood was empty.

In five minutes’ time, however, half a dozen roughly dressed men were
talking in front of the opening from which the lads looked out; that is,
as near in front of it as they could get without standing on air!

“I say there was some one up here!” a harsh voice insisted. “The people
over there were shouting across to him.”

“Where is he, then?” asked another voice.

“I don’t know! I half believe some of those confounded boys have found
the mine opening and hidden it in!”

“I guess they can’t find it if we can’t,” came another voice.

“But Flint said it was somewhere off this shelf.”

“If he knew where it was, why didn’t he find it?”

And so the talk went on, while the men searched every foot of the shelf
and the wall back of the shelf. It was clear that Flint, after being
arrested for the murder of Trumbull, had tried to buy his liberty by
proclaiming a discovery of the famous Durand mine!

“We don’t have to discover it to-day,” was finally said. “We can come
back at any time and locate it.”

“But what about those boys? Old Dave Durand left a paper, so I’m told,
saying that whoever found this mine might have it. Now, if these boys
find it, what good does that do us?”

“Well, keep right on looking if you want to!” was the surly answer.
“I’ve had enough of climbing to-day. Besides, those people on the old
mine dump are watching us. We wouldn’t dare enter the mine if we should
find it—not with them looking on!”

“I wish we had our searchlights,” Clay remarked, as soon as the others
had disappeared. “We may be in the mine and we may not be! I don’t
believe there is any gold or silver here, anyway! If there was gold
here, there would be outcroppings in other places close by.”

“That is the way it strikes me,” Don returned. “If there is anything of
value in here, I reckon Uncle David put it here. If you knew what a
queer old fellow he was, you would think so, too.”

“What would he have to hide here? He secreted the bonds in the old house
at Yuma, and it seems to me that if he had possessed other things of
great worth he would have put them with the bonds.”

“There is no knowing how much money the old fellow had,” Don continued.
“He made a million or more in Chicago real estate, and at the time of
his death, I am told, there wasn’t a cent of his money in any of the
Chicago banks. He was afraid of banks. I guess that Mr. Frost was the
only banker he ever trusted, and he trusted him with his nephews and not
with his money! Oh, yes,” the boy went on, with a sigh, “the poor old
man sent word to Frost to look after Tom and I! So Frost says. I never
knew that Uncle cared enough about us to do even that!”

“What would he naturally leave in a place like this?” asked Clay.

“Bonds or money—money, probably.”

“I’ve got a few matches left,” Clay insisted, “and I’m going to use them
to see what sort of a place this is. If there is any money here we ought
to be getting it out.”

“Yes; before the natives come back,”

Clay lit a match and looked about. Where he stood there was merely a
long passage, high and roomy at the back but narrowing down to the small
opening the boys had used in front. There were no openings in the walls,
no places where anything might have been stored away.

“Now, go on in farther before you light another,” Don suggested. “He may
have made a hiding-place of the next angle.”

The flame of the match revealed a shallow niche in the north wall. In
the niche lay a metal box the size of a sardine box. It was covered with
rust, and did not open readily when Clay drew at the cover.

It came open after a time, however, and both boys bent over it.

“This isn’t a treasure!” Don exclaimed. “This is a clue! A sure enough
clue in the rocks! And only paper!”

Clay put the box, closed, into a pocket and moved toward the entrance.
Don followed on behind, gloomily enough. He had expected so much of the
discovery they had made, and a tin box had been the only product of it!

“Just our luck!” he complained, as the two stumbled along.

“Never you mind!” Clay said. “How do you know what this box contains? It
is only a paper, but even a paper may tell where a million is hidden!
Wait until we get out into the sunshine, and we’ll see what it says.
Your Uncle David certainly was an odd one! The idea of any one in his
right mind hiding a paper in a dreary place like that!”

At last the boys reached the ledge again. Mr. Frost, Alex and Tom were
still on the level dump in front of the old mine. They motioned to Clay
and Don as they came out, indicating that they were going away to look
for the _Rambler_. Clay held up the box, drew the paper out, and held
that up, too. There was excitement across the great chasm!

Alex seemed to be pointing the way down, and Banker Frost was motioning
to Clay to be careful of the box and the paper.

“If those natives got down from here, we can!” Don exclaimed. “We can go
anywhere they can! How we are going to get across the river is what gets
me! Can you swim it?”

“I’m not going to take the risk,” was the reply. “They will have to come
after us in the _Rambler_.”

“But the _Rambler_ has disappeared,” Don reminded the other.

“I don’t believe anything serious has happened to her!” Clay insisted.
“Case and King ought to be able to take good care of her.”

Just as the boy finished speaking the clamor of the motors of the
_Rambler_ was heard. King and Case had picked up the broken rowboat and
started up toward the old anchorage.

But the motor boat did not stop at the landing. Instead, she ran up
toward the old mine. It was pretty risky, but the _Rambler_ was staunch
and true to her helm, and finally passed the perilous places and lay in
reasonably quiet water opposite the mine. Under ordinary circumstances
King would not have countenanced such an undertaking, but both were
anxious over the fate of the boys who had gone off in the small boat,
and they were anxious to confer with Frost and the others on the
subject.

The three on the dump, after a long and difficult downward climb,
reached the water’s edge and managed to get on board without getting
wet, as the river was deep and still at the end of the dump, and the
motor boat ran up close to the bank.

They had scarcely begun telling the story of the missing boys when Alex
pointed to Clay and Don, crawling down the opposite wall like flies.

“How did they ever get there?” asked King, amazement in his face.

“We’ll never know until they tell us!” laughed Alex. “Can’t you run the
boat over and get them?”

Here was another risk, but finally, by running far up stream and coming
down on the west side and tossing out a long rope, Clay and Don, wet but
triumphant, were hauled on board. Clay with the precious metal box
containing the paper wrapped up in his coat and held as much out of the
river as possible.

When the box was opened and the paper spread out, it was found to hold
only a map of the old shack by the mine. Under the location of the
window in the sitting room where Trumbull had been shot to death, the
paper showed a black mark—a great cross, evidently made to imitate the
rocky formation above the cave where the paper had been discovered.

“So it wasn’t a treasure you found in the mine,” laughed Frost, looking
at the map, “it was only a clue!”

Clay insisted that the boat be put back to the mine landing, and again
they all made the long climb to the old house. There was no mark of any
description under the window designated by the map, but Alex found a
hatchet and went at the ceiling with which the room was lined.

In a moment he came to a metal surface off which the hatchet slipped.

“Work around it! Dig it out! It is a treasure chest!”

Don laughed as he spoke, for, to tell the truth, he had no idea that
anything more of great value would be found. His idea was that the bonds
already found had constituted the greater part of his uncle’s wealth.

Directly a steel box which weighed at least fifty pounds was brought
out. The cover was on tight, and there was no key. In fact, it did not
seem possible to get the box open without having it cut with tools
secured for that special purpose.

Frost looked at the box closely and smiled as he noted how neatly the
lock was concealed—even the keyhole, if one there was, being out of
sight. The box was carried aboard the _Rambler_, with great difficulty,
and then a start for the old landing was made.

The surprise of the day was when the mysterious box was opened!




CHAPTER XXII.—THE END OF A LONG JOURNEY.


It was growing dusk when the motor boat reached its old anchorage. The
hungry lads set themselves at work getting supper at once, and Alex and
Case volunteered to bring in fish! Clay and Don had made such a mess of
their fishing expedition that the boys roared when a fish supper was
mentioned.

“If we didn’t get fish,” Clay replied to their taunts, “we got something
more valuable! I guess that iron box is worth more than a fish!”

“I don’t see as it is,” Tom grunted. “No one can get it open!”

“There ain’t no place to open it!” Alex complained. “I believe it is
just a solid block of metal. It is heavy enough to be that!”

Case and Alex went ashore and followed down the bank, dropping lines
into deep pools until they were out of sight of the _Rambler_. In the
meantime Frost and King stood regarding the iron box. Indeed, there
seemed to be no way of opening it. While they contemplated the puzzle a
hail from shore was heard, and directly a man sprang aboard, the
_Rambler_ having been drawn close to the bank because of the loss of the
rowboat.

“This is the sheriff,” King explained, as the boys regarded the newcomer
with suspicion. “I presume he has news of Flint and Ike.”

“They confessed about as soon as they were placed under arrest,” the
sheriff began, “and each one lays all the blame on the other. It seems
that they knew from David Durand himself that articles of value would be
left for his nephews to find, and ever since his death they have been
looking for the treasure. They believed it to be a mine.”

“And they have been living in the old house?” asked Don.

“Yes, most of the time.”

“Then they weren’t far from something that was hidden,” the boy
declared. “This box was secreted in the wall.”

“What is in it?” asked the officer.

“We don’t know. We can’t open it!” was the discouraged reply.

“But there must be a key somewhere,” the sheriff said.

“There isn’t even a keyhole,” Don grinned. “It’s shut tight!”

“Well,” the officer went on, “Flint and Ike have confessed, and they
will be hanged. That is what I came here to tell you. The body of the
dead man will be buried near the old mine, if that is satisfactory to
you all,” he continued. “He was a crook, too, wasn’t he?” he added.

“For years he was,” the banker replied, “but at last he came to his
senses and offered to help me in restoring the dead man’s fortune to his
nephews. He employed King—the man you made a deputy at my request—to
assist in finding the boys, after Don took the handbag and got away. He
came out here to help solve the mystery of the mine. He had the third
paper at one time, but returned it to me.”

“David Durand found strange hiding-places for his money!” the sheriff
mused. “Think of the bonds in the old house, and this box in the cave. I
have been thinking of the queer old chap ever since Mr. King told me
about him. It is a wonder the bonds were ever found—and the old wallet!
What a place for property!”

“There’s a letter somewhere which explains everything!” Don insisted.

“It wasn’t in the wallet, was it?” asked King. Don shook his head, and
Clay brought out the wallet to prove it.

“Here’s some banknotes,” he said. “They will have to be sent in for
redemption, they’re so rotten, and this thin piece of steel. That’s all
there is in here. Look and see for yourselves.”

While they were examining the wallet and the half-rotten banknotes. Clay
stood with the key in his hand, looking at it thoughtfully. In a moment
he walked over to the iron box and began an inspection of that. He felt
over every part of the surface several times before his fingers came to
a little perturbance.

Then, in a moment he had the key pushed into a slit of a hole which had
been brought to view by the removal of a small plug-like piece of metal
which had been set into the body of the box. He moved the key this way
and that for a moment, and then there came a sharp click. The top of the
box, working on rusty springs, flew back, revealing a mass of papers,
with a sealed envelope lying on top.

They all gathered around while Don, to whom the letter was addressed,
opened the message from his dead uncle. The writing was very brief. It
said:

“If you find this the bonds belong to you and Tom. There are more bonds
in the strong room at the old house in Yuma. I have given you all the
trouble I could think of, my boy, before delivering my property into
your hands. I don’t think it good for boys to get money easily. If this
box is never found until the bonds have rotted, then so much of the
government debt will have been paid. If you should ever get locked in
the Yuma treasure room, the key to the iron door is in the wall-safe
with the bonds. From your cranky uncle.”

“That is all!” Don said, slowly. “And we might have gotten out of that
cellar if we had only looked closer into the wall-safe!”

“A strange old man!” mused the banker. “He never provided for Don and
Tom, personally, yet he interested me in them. He trusted Trumbull
instead of me—unless Trumbull stole the two papers which were in the
handbag with the money!”

“He did steal them!” King declared. “Don knew he had stolen them, for
his uncle had, in a measure, told him about them. When Trumbull
mentioned papers revealing the location of a mine in the Grand Canyon,
Don knew of course. I presume, however, that David thought Don would
have the two papers, so he gave me the third one, which Trumbull stole
and afterwards returned!”

“It has been a great muddle!” Clay laughed, “and we came along with the
_Rambler_ just in time to get mixed up in it.”

“Look in the packages,” the banker advised, “and see how much of a
fortune you have. The letter speaks of bonds.”

There were in the iron chest government bonds to five times the value of
those found in the treasure room at Yuma, so Don and Tom were very
wealthy boys.

“We are always finding wealth for others!” laughed Clay, “but none for
ourselves! However, we are planning to take a trip down the Mississippi
next, and we may have better luck there! But here come the boys with
plenty of fish, and we’ll have supper right away!”

And such a supper as they had! All the precious dainties the lads had
been hoarding for some such event were brought out, and there was
feasting until a late hour. Captain Joe and Teddy had their full share
of the good things, and the dog was forgiven for permitting himself to
be doped by Flint! If he could have talked he would have explained that
the drug was eaten in a very fine piece of meat, and would have added
that he would never more take food from a strange hand!

“By the way,” the sheriff said, as he arose to go, “with the arrest of
Flint and Ike the ghost of the Grand Canyon is laid! They have been
playing ghost a long time to keep people away from the supposed mine.”

Then Alex explained how he had found the white wrappings they had worn,
and also the black head coverings, in the closet at the old shack.

“And now, can we get up any farther?” asked Clay, as the lads were
preparing for sleep. “Is this the end of navigation for us?”

“You can’t have any fun in going on,” Don declared. “It would be a great
task to get the motor boat up farther.”

“Then we’ll turn back,” Clay decided, “and see if we can find as much
excitement in the down trip as we did in the up trip!”

“I don’t see how you can!” Don laughed. “You won’t have the two trouble
makers with you, for Tom and I have decided to go back to Chicago with
Mr. Frost, and meet you there later.”

“If you boys don’t mind,” King said, “I’d like to go down the Colorado
with you. I’m in need of just such a loafing spell.”

The permission was given, and the next morning, after Frost, Don, and
Tom had climbed to the plateau and started away to the nearest railroad
station, the _Rambler_ was gotten under way, and the down trip begun.

It was a glorious river trip. The desert shone and glistened in the sun,
the mountains laughed from under their white caps, the river sang its
everlasting song of peace and quiet!

The boys took a month to reach Yuma. There the _Rambler_ was placed on
board a platform car and started on its journey eastward. It was the
plan to ship the motor boat to as near the head waters of the
Mississippi as possible and sail down that mighty stream in the early
fall.

An account of this exciting trip will be found in the next volume of
this series, entitled:

“The Motor Boat Boys on the Mississippi; or, the Trail to the Gulf!”

  THE END





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