CHAPTER XVI.

THE FIGURE ON THE CLIFF.

The boys held a hasty consultation as soon as they had retreated a safe

distance from the reeking fumes of the Toltec excavation. Till the foul

air of the place, probably stagnant for many hundred years, had been

given a chance to pour out, it would have been folly to have wasted time

on an attempt to descend into the black hole that the swinging back of

the huge rock had revealed. There seemed to be little doubt, after the

mystery had been discussed again and again, that Harry’s lucky shot had

released some spring hidden in the quesal’s eye and caused the boulder

to open. It seemed incredible;—but there was no other explanation, and

it was decided to defer all discussion of the matter till a thorough

examination could be made of the interior of the cavern they had

stumbled upon for the hidden mechanism.

In the meantime a hasty camp was pitched, although there was little

thought of sleep in the minds of any of the boys and after supper had

been despatched they sat up long, with eyes that refused to grow drowsy,

talking over what they were likely to find on their exploration trip,

which they had agreed to undertake as soon as it grew light enough to

make a start—always providing that the foul air of the place had cleared

sufficiently to make such a thing feasible.

At Frank’s suggestion watches were finally set, the night being divided

into three sections. Harry volunteered for the first, Frank for the

second and Billy agreed to tackle the last. He was given the opportunity

to select a short period of watching as both boys realized, although he

indignantly disclaimed it, that he must be still feeling some effects of

exhaustion from his wound.

Harry kept up a fire, for although it was not chilly the boys knew that

once in a while a jaguar, bolder than his fellows, had been known to

attack rubber-cutters, and they were by no means inclined to have the

success of their expedition marred by anything approaching a tragedy.

Having nothing better to do the lad amused himself by singing in a not

particularly melodious way. Harry knew more about aeroplanes than he did

of music and the tone effects he produced were something weird.

He had just attained a particularly high note and was congratulating

himself—as is the way of people who have accomplished something they

didn’t think they could do—when a sound that had startled both Frank and

himself before, suddenly brought his satisfaction to an abrupt period.

It was the mysterious bell again!

It was pealing with the same frenzied, timeless clamor that it had

manifested on the two previous occasions they had heard it, but it

sounded somehow much nearer than it had from the camp on the plateau.

“Ahoy there!” shouted Harry; determined if there was a human agency at

work to get some sort of reply, “ahoy!”

There was only the echo of his voice coming hollowly back from the face

of the cliff for an answer.

His shouts, however, awoke Frank and Billy.

“Whatever is the matter, Harry?” demanded Frank.

“It’s the bell again,” replied Harry in awestruck tones.

Before Frank could frame an answer or Billy could speak, the furious

pealing broke out anew.

“Why, it’s close at hand—somewhere!” exclaimed Frank, after he had

listened attentively, his head on one side, for several seconds.

“Sounds as if it might come from the cliff itself;” said Billy; who was

feeling rather nonplussed as the metallic clashing continued without

interruption, but in the same furious aimless way already familiar to

the boys.

“That’s right, Billy,” agreed Frank, “if I’ve got any ear for location

of sound it is coming from the cliff.”

“How can it come from there!” protested Harry, as the bell ceased as

suddenly as it had begun, “I’m sure we looked carefully enough over that

wall of rock, and there’s nothing even resembling an opening in it—even

supposing,” he added “that anyone would be crazy enough to climb up

there—which they couldn’t do anyhow—and ring a bell.”

“Perhaps it’s some kind of a bird or animal,” suggested Billy, eager to

find some satisfying solution of the uncanny sound.

“Yes, a chimes-bird or a bell-rabbit,” scornfully snorted Harry, “no,

we’ll have to do better than that.”

“There’s no doubt it’s a sure-enough bell,” decided Frank.

“And a good loud one, too,” replied Harry. “I never heard a clearer or

better one even on a church.”

“But who in thunder can be ringing it?” resumed Frank.

“There we are, back at the beginning of the question again,” rejoined

Harry disgustedly.

“You can’t convince me that it hasn’t got something to do with the

cave,” exclaimed Frank. “Possibly with the very door we uncovered

to-day.”

“I suppose the man who rings it marches in prompt at midnight every

night—when we had to dig up the ground with pick-axes before we could

get it loose enough to shovel—try again, Frank;” laughed Harry.

“Mightn’t it be monkeys?” was Billy’s contribution.

“Where would they get the bell?” demanded Frank.

“Hum; that’s so,” replied Billy, abashed at the dashing to earth of the

theory he had so hopefully advanced.

“If he’d start up again,” said Frank suddenly, “we could get a line on

just where the sound is coming from and then when it gets light examine

every foot in that direction.”

Both his listeners agreed that this would be a good idea. But if the

bell-ringer had heard them and maliciously made up his mind not to grant

their wish he could not have remained more silent.

“Perhaps if you’ll sing again, Harry,” remarked Frank, unkindly, after

the younger boy had related for the dozenth time how the bell-ringing of

that particular night had started; “he will get mad and start pulling

the rope once more.”

Overlooking the deliberate insult, in his desire to find out if the

bell-ringer would not oblige, Harry lustily started an old high-school

song. But though he sang till his throat cracked, and his listeners’

ears ached, he disturbed nothing but an old white owl that flew from

some hiding-place on the face of the cliff, and flapped solemnly round

the boys’ camp,—its great yellow eyes gleaming wickedly.

“R-r-r-r-r,” shivered Billy, as the silent bird wheeled by them so close

they could almost have touched it, and suddenly let out an ear-splitting

screech that made all the boys jump in spite of themselves. “I hope that

it isn’t some spirit, or something, of the old Toltecs that has been

ringing the bell to keep us away from their cave. I don’t mind anything

I can hit with a firearm but I haven’t much fancy for going into a

haunted cave.”

“The only ‘hants’ you’ll find in there will be bats and a few relatives

of our white-feathered friend that just disturbed you—I hope you are not

going to sport any plumage of his color,” laughed Frank.

“Come, Frank, that isn’t fair,” protested Billy, indignantly, “and I saw

you jump yourself when that old owl let out that holler.”

“I didn’t mean it seriously,” laughed Frank, good-naturedly, seeing that

he had really hurt Billy’s feelings, “but you don’t, for a moment

suppose that there is anything in whatever those steps may lead down to

but dust and darkness and bad air, do you?”

“I don’t, eh?” retorted Billy angrily, “well, what do you think I dug

till I nearly dropped dead for—my health?”

“I suppose you are figuring on running into a treasure trove as soon as

we get in there,” grinned Harry. “If they took as much care to hide

their valuables as they did to lock the front door we’ll be a long time,

and have a lot of hard work before us,—before we discover the Toltecs’s

secret.”

“Pshaw,” replied Billy magnanimously, “what do you suppose I care for

the hard work? Anyhow I wasn’t serious with you fellows. There might be

all the treasure the Toltecs ever saw,—and Captain Kidd and Sir Henry

Morgan thrown in, concealed in that cave, or whatever it is at the

bottom of that passage, but I’ve no right to even a share of it—I’m far

too deeply in the debt of you fellows for anything like that.”

“No, Frank; no, Harry; it isn’t the money I care about at all—though I

don’t deny I can always use all I get my hands on. That’s not the point,

however, this is your discovery, not mine, and I’m going to help you out

on it all I can. I don’t want a penny, but if we really find any buried

treasure the very idea of it will be all I want in the way of a big

sensation.”

“Nonsense, Billy,” rejoined Frank, touched at the reporter’s

earnestness. “We are in this thing as partners. We all share the

dangers, we’ll each take an equal share of the reward, always supposing

there is any.”

“Of course we will, Billy,” put in warm-hearted Harry, “and when we get

back to America you’ll be able to buy the _Planet_ and fire your

managing editor.”

“I don’t know of anything I’d like better,” replied Billy in all

seriousness, while the boys shouted with laughter at his grave face,

“although,” he added, “I do owe him a debt of gratitude for sending me

down here.”

“I don’t see what you’ve done for the paper, Billy, however,” returned

Frank.

“The wires are all tied up, aren’t they?” replied the business-like

Billy, “what could I get through? As a matter-of-fact I’m getting more

good material, sticking round with you fellows, than I could collect in

a year by myself.”

Further conversation was cut short at this point by a sudden cry from

Harry, who had been sitting with his knees clasped gazing up at the dark

sky, which was dissected as though by a knife-blade by the black wall of

the cliff-summit where it cut across it.

“What is it, Harry?” demanded Frank.

“Well, there’s something very funny about that cliff, that’s all,—or

else I’ve got optical delusions,” rejoined the youth in an earnest tone.

“Yes,” said his hearers breathlessly, for Harry’s startled face was

sufficient evidence that he had seen something surprising.

“You can believe me or not, as you like,” returned Harry, “but a few

seconds ago, as you and Billy were talking, I’ll swear I saw a man’s

figure outlined against the sky at the top of the cliff.”

The Boy Aviators in Nicaragua; or, In League with the Insurgents · 第 16 / 29 章