Jimmie's first thought, as he saw the flattened head of the sea
monster sliding upward toward his helmet, was that he had encountered
the original sea serpent. There seemed to be a coil about the boy's
leg, and he dropped down lower to see what the chances were for
cutting it away with his weapon.
The prospects did not seem favorable, for his steel bar, while very
sharp at the point, was not intended for chopping work. He could
pierce the body of the reptile, but could not weaken its strength so
that the coil would drop away.
It was when he dropped down that the spasmodic jerks on the line were
given. The sea monster had included the line in his coil, and it drew
as the boy bent lower.
The air-hose seemed to be clear, but Jimmie was afraid that the
flounderings of the serpent might break it. The horror was certain to
do some thrashing about when he felt the keen edge of the steel.
The only way was to strike some vital spot. That would end the combat
at once. The serpent's head lowered with the boy, as if he had great
curiosity to find out exactly what sort of a being it was that had
invaded his kingdom.
The boy was cheered by the thought that the submarine had stopped,
although he did not realize at the time that the signal had been given
by the action of his enemy. If the boat had continued on her course,
the air-hose and the lifting line must both have been broken in a
short time, as the boy's progress was stopped by the great weight of
his terrifying foe. Then the end would have come instantly.
The coil about the leg was drawing tighter now, and the boy was in
considerable pain. Also the coils were ascending as the head of the
sea monster swung around.
It was not only the pain and the deadly danger that brought a
momentary shiver to the boy. It was the fact that the repulsive body
of the serpent was winding closer and closer about him.
He seemed to feel the slimy skin of the deep sea terror slipping
through his waterproof suit, although his common sense told him that
such could not be the case. He even thought he scented the sickening
odor which he had now and then experienced in the Central Park Zoo. He
knew, too, that this was purely imaginary, but the horror of a
nightmare was on him, and for only an instant he lost his nerve.
Once more the head swung around and the boy presented his weapon and
struck with all his might. The needle-like point entered the throat of
the serpent and passed through just at the back of the long, spotted
head.
There was a great switching in the water for an instant, and then the
coils loosened. The blow, as Jimmie afterwards discovered, had broken
the spinal cord.
While not yet dead, the serpent was incapable of moving the lower part
of his body. With a sense of loathing he pulled at the coils until he
was clear of them.
The water where he stood was now taking on a faint reddish hue, and
Jimmie hastened away. At first, weakened and shaken as he was by the
disgusting encounter, he determined to return to the submarine, then
the thought of what his chums would say to him if he gave up caused
him to proceed in the direction of the Shark.
He moved over the level bottom, looking for lines which would indicate
that the Shark people were out watching the movements of their rival,
but found none. When he came to the end of his line he signaled for
the submarine to go ahead.
In this manner, by slow degrees, and always keeping his eyes out for
creatures similar to the one he had vanquished, he advanced until he
saw the bulk of the Shark only a short distance away. Then he called
for a stop.
He remained there some moments, watching the Shark lift to the
surface. Then a dark object passed shoreward, and the boy was certain
that a boat had been sent to the little wharf.
"I guess that will be about all," he thought. "I've secured the
information Ned wants, and may as well go back."
To tell the truth, he was delighted at the thought of getting out of
the water again. His encounter with the serpent had considerably
lessened his enthusiasm for deep-sea work.
The Sea Lion dropped down when Jimmie gave the signal, and he was soon
in the water chamber, where he found Frank in sea dress. The two were
out of the water in a short time, with the chamber empty again.
"What did you do that for?" asked Jimmie, as soon as the helmets were
removed.
"Did you notice the color of the water?" asked Frank.
"Yes, down there, but up here--say," he added, "the blood of that
champion sea serpent never got to the surface, did it?"
"Just enough of it to cause me to think a shark was making a meal down
there," replied Frank.
Jimmie told the story of the encounter, laughing at the peril which
was past, but Frank looked grave.
"We'll have to be more careful how we wander about on the bottom of
the sea," he said. "It was just luck that brought you out alive. You
might wound a serpent a hundred times with that steel bar and never
again strike a vital spot."
"Then," Jimmie laughed, "when we get back to New York you put in a
claim for a Carnegie medal for me! It would look fine on the front of
me hat." "I'll have Ned make you a medal out of a fish's fin," laughed
Frank.
"All right!" cried Jimmie. "It will be all right, just so it is a
medal."
Then Jimmie told of what he had seen in the vicinity of the Shark, and
Frank complimented him on his courage and good judgment in keeping
down until he had secured the desired information.
"We know now,' he said, "that the Shark people are communicating with
the shore. Perhaps Ned and Jack will learn just what they are doing
there. If they do, we shall know just what course to pursue."
"Why, if the Shark people dispose of the documents--if there were any
documents in the plunder--we'll have to chase after the men who take
them. The gold doesn't count."
"Yes," laughed Jimmie, "and I suppose we'll leave the Sea Lion and go
over the mountains in an open boat! I'm goin' to stick to the little
old Sea Lion."
"Well," Frank remarked, after a short wait, "we must get back to the
spot where Ned left us."
"Never thought of that!" Jimmie cried. "He may be yelling his head off
because he can't come on board."
The boys lost no time in getting back to the first position, and then
lifted to the surface. The conning tower, as before, was out of sight
of anyone on the bay, the point of land intervening.
As the time passed the boys became anxious about Ned and Jack. They
might have returned while the Sea Lion was away, they thought, and
gone into the interior thinking that some accident had happened to the
submarine.
"Anyway," Jimmie declared, "Ned told us to move along as my line gave
out, and he must know that we'd come back to pick him up."
While the lads speculated on the possible outcome of the visit to the
shore there came a sharp collision which keeled the Sea Lion over to
port. Both were active in an instant.
Frank did not answer for a moment. He was still standing back of the
little fellow and looking over his shoulder, out of the glass panel.
"Because," he said, "the Shark takes chances in bumping us at a
considerable depth. She is higher than we are, and her prow sits a
great deal above our vulnerable parts. If she strikes us when we are
nestling on the bottom, her blow will glance off."
"If she knows it, then," Jimmie said, "she won't follow us down. What
will she do?"
"It beats the Old Scratch why Ned and Jack don't come," Frank said,
presently. "I'm afraid something has happened to them."
"There is no use of their staying ashore," Jimmie said, "for I found
out what Ned wanted to know. He asked me to find out if the Shark
communicated with the shore, and I did it. He ought to know I wouldn't
fall down on a little thing like that," the boy added, with a grin.
"I'm the only original snake charmer!"
While this sharp exchange of ideas had been going on, Frank had been
working the various levers which controlled the altitude of the
submarine, and the gauge showed that she was close to the bottom as
the last word was spoken.
Jimmie turned away from the panel and caught hold of a railing which
ran along in front.
Then there came a shock which threw both boys off their feet. The
staunch craft shivered for an instant, then righted, swaying just a
little under the heavy pressure of the depth she was in.
Frank sprang to the delicate machinery which controlled the air supply
and the lights. No harm seemed to have been done to them.
"The Shark can't do that again!" Jimmie said, with a sigh of relief.
"We're on the bottom now, and her prow would slip over our back. The
only mischief she would do would be to knock off our conning tower,
and that would not disable us."
"Bet I can go ashore an' find a Boy Scout!" returned Jimmie. "We've
found 'em in every part of the world."
The Shark was still in view, her lights creating faint mists under the
water, but the boys did not consider her a formidable opponent now, so
they lifted to the top of the ocean.
Jimmie was first out on the conning tower. The sun was still shining
brightly and the water lay as quiet as the surface of a pond on a
still day.
When the boy turned to the white line of sand at the rim of the sea he
saw Ned and Jack standing there with two others. He waved his hat and
Jack swung back from where he stood.
"Guess they've found some one worth talking with," Frank remarked,
stepping up on the conning tower.
"Guess they have," responded Jimmie, "but there's some one creeping up
to 'em from the thicket," he added, lifting his glasses. "Look out,
boys!" he shouted, waving one hand frantically. "Look out! There's
some one makin' a sneak on you!"
"They don't catch what you say!" Frank exclaimed. "Look there!"