The next morning this was found to be the true explanation. Tracks on the bottom of the gully showed plainly how the strange desert wanderers had effected their disappearance in such a startling manner. But it was some time before Pete could sit down to a meal without being reminded of his "fire-spouting spook," which had cast such alarm into the camp the first night. The boys spent a week more at the mesa, during which time Professor Wintergreen obtained voluminous notes on one of the most interesting specimens of its kind in the south-west.
The days passed tranquilly, and, with the exception of the duty of removing the carcass of the dead camel, nothing to interrupt the routine of survey work occurred. The mates of the dead beast had evidently decided not to revisit their pasture grounds, for they did not put in a reappearance.
"Well, boys," said the professor one morning when they were all gathered at the summit of the mesa, "I guess that to-morrow morning we can say good-by to the scene of our rather tame adventures. My work is complete."
"How about the subterranean river?" asked Ralph, but a howl of derision from the others silenced him.
"Subterranean fiddlestick," burst out Jack, but the professor silenced him.
"The existence of such a stream is not so improbable as you seem to think," he said, "and Master Ralph is to be commended for his enterprising desire to locate it, but I think that our investigations have shown that if such a river ever did exist and the mesa dwellers had access to it, that the entrance, wherever it might have been, has vanished long ages ago."
Pete had taken no part in this conversation, but had wandered about the top of the mesa rather aimlessly, from time to time looking sharply at the surroundings beneath him in the alert manner of one whose life has been passed in the open places.
Suddenly he gave a quick exclamation and pointed off into the north-west.
"Look! Look there!" he exclaimed, riveting his eyes on something his keen vision had sighted, but which remained as yet invisible to the boys.
"What's coming—another storm?" asked Ralph.
"I don't know what it is yet," rejoined the other in a strangely uneasy tone, "it looks like—like——"
"A pillar of dust," exclaimed Jack, who had by this time sighted it, too, and had come to the aid of the unimaginative plainsman.
"So it does," cried the others, who now, with the exception of the short-sighted professor, could also see the approaching dust-cloud.
"What can it be?" wondered Walt, peering eagerly in its direction.
"Somebody riding. Several of 'em, I should say, by the dust they're raising," rejoined Pete bluntly.
The boys exchanged quick glances. Somebody riding across that arid waste? Their destination could only be the mesa, then, but who could it possibly be?
Had they been able to solve the riddle at that instant, they would have scattered pell-mell for their ponies, and made the best of their way from the Haunted Mesa, but, not being endowed with anything more than ordinary sensibilities, it was, of course, impossible for them to realize the deadly peril that was bearing down upon them in that dust-cloud.
"I can see things more clearly now," cried Jack, as for an instant a vagrant desert air blew aside the dust-cloud and revealed several riders, surrounding some cumbersome, moving object in their midst.
"There's a wagon!" he cried, "a big one, too, and surrounded by horsemen. What can it mean?"
"That we'd better be skedaddling as quick as possible," shot out Pete, brusquely.
The professor, who had wandered away from the group and was down inside the hollow altar, was hastily summoned and apprised of the strange approach of the mysterious cavalcade.
"Why, bless me, boys, what can it mean?" he cried, nimbly attempting a flying leap over the edge of the altar in his haste to ascertain for himself the nature of the approaching party.
Suddenly, however, as his feet touched the top, and he was scrambling over, he gave a sharp cry and fell back within the altar with a gasp of pain.
"Are you hurt?" asked Jack, running to the side of the ancient place of sacrifice.
The professor lay prostrate within. His face was white and set and beads of sweat stood out on his forehead.
"My—my ankle," he groaned. "I broke it some time ago, and in hurrying to clamber over the top of the altar I fear I have snapped it again. Oh!"
He gave a heartrending groan of pain. The boys stood stricken with consternation. It was going to be a long and difficult task to get the professor out of his present predicament, and there seemed need for haste.
"Here, put this under your head," said Jack, stripping off his jacket hastily, and throwing it within, "I'll tell Coyote Pete about your accident, and we can get remedies from the packs."
But when Jack turned, only Ralph and Walt stood beside him. The sturdy cow-puncher had vanished.
"He's gone to get the glasses," explained Walt.
Presently Coyote Pete, very much out of breath from his dash down the path and up again, stood beside them. He had the glasses in his hand, and lost no time in applying them to his eyes. He had not had them there two minutes when he gave a quick exclamation and turned hastily to the boys.
"Lie down; lie down, every one of you," he ordered sharply.
They lost no time in obeying, as they knew that the old plainsman must have an excellent reason for such a command. The next instant Pete himself followed their example. Crouching low, he once more peered through the glasses above the edge of the cup-like depression.
"Who are they?" asked Jack in a low voice, wriggling his way to Pete's side.
"I'm not sure yet, but they are all armed. I caught the flash of sunlight on their rifles. If they are Mexican insurrectos, we are in a bad fix."
"Mexicans! What would they be doing this side of the border?"
"That remains to be seen. But I don't like the looks of it."
"Suppose they are Mexicans, Pete, would they do us any harm?"
"That depends a whole lot on whether they are on lawful business or not."
"You mean——"
"That I don't like the looks of it. If there's an insurrection in Mexico, those fellows are after no good on this side of the border. They may be some band of cut-throats, who are taking advantage of the disturbances to raise Cain."
"Good gracious," exclaimed Jack, "and the professor's just injured himself so that we can't move him for some time anyhow."
Coyote Pete turned sharply on the boy.
"What's he done?"
"Broken his ankle, or, at any rate, seriously sprained it."
Pete's rejoinder to this was a long whistle of dismay. He said nothing, however, but once more applied the glasses to his eyes. Jack saw him gnaw his moustache, as he gazed out over the desert. The dust-cloud was quite close now—not more than a mile away. The boys, with their naked eyes, could easily catch the moving glint of metal.
"Well, Pete, what do you think?" inquired Jack eagerly, as the cowpuncher at length set down the glasses.
"That we're in Dutch," was the expressive rejoinder.
CHAPTER VIII.
THE DARK FACE OF DANGER.
"Are we in actual danger?"
It was Ralph who put the question. The Eastern lad looked rather white under his tan. Walt, however, seemed as imperturbable as ever, and gazed out at the approaching horsemen with no more sign of emotion than a tightening of the lips.
Coyote Pete's reply was a curious one. He handed the boy the glasses, and said curtly:
"Take a squint fer yourself."
Ralph gazed long and earnestly. Pete talked the while in low undertone.
"Do you recognize him—that fellow on the big black horse? I'd know that horse ten miles away, even if I didn't know the man. He's——"
"Black Ramon de Barros!" burst from the Eastern lad's astounded lips, while the others gave a sharp gasp of surprise.
"That's the rooster. Here, Jack; take a look."
The boy, as you may suppose, lost no time in applying the glasses to
his own eyes. Viewed through the magnifying medium, a startling moving-picture swung into focus.
Surrounding a big, covered wagon, of the prairie-schooner type, were from ten to a dozen wild-looking Mexicans, their straggling elf-locks crowned by high-peaked sombreros, and their serapes streaming out wildly about them, whipped into loose folds by the pace at which they rode. As Coyote Pete had said, there was little difficulty for any one who had seen him once, in recognizing Black Ramon de Barros. His magnificent black horse—the same on which he had escaped from the old mission—made him a marked man among a thousand. The wagon was drawn by six mules, and driven by a short, stocky, little Mexican. The horsemen seemed to act as escort for it. Evidently they had no fear of being observed by hostile eyes, for, as they advanced, they waved their rifles about their heads and yelled exultingly.
Fortunately for the party on the summit of the mesa, their stock was tethered on the opposite side of the formation to that on which the cavalcade was approaching. Thus, Black Ramon and his men could not see that the mesa was occupied. Jack caught himself wondering, though, how long it would be before, and what would happen when, they did.
"Have you got any plan in your head?" he asked, turning to Pete, as he laid the glasses down. But for once, to his dismay, the old plainsman seemed fairly stumped. The danger had come upon them so suddenly, so utterly unexpectedly, that it had caught them absolutely unprepared. They had not even a rifle with them on the mesa summit, and it was now too late to risk exposing themselves by descending for weapons. There was nothing to do, it seemed, but powerlessly to await what destiny would bring forth.
"You boys get back to the altar. You can act as company fer the profusser, and it will be a snug hiding-place in case of trouble," whispered Pete. "I wish to goodness we'd brought the stock up inside the mesa, and then those fellows might never have discovered we were here. I don't see how they can help it, as things are, though."
"They'll be bound to see our footmarks in the assembly hall," said Jack.
"Not bound to, lad," rejoined Pete. "You see, they may be only going to make this a watering-place fer their stock, and then press right on."
"Press right on across that rocky range yonder?"
"Hum," resumed Pete, "that's so. They couldn't very well get that wagin across that, could they?"
"Whatever do you suppose they've got a wagon for, at all?" asked Jack.
"I've got my own ideas, lad, and I'll find out afore long if I'm right. Now, you and the other boys get back in that altar. If it gets too hot here, I'll jump in and join you. If the worst comes to the worst, we ought to be able to lay hid in there fer a while."
"In the meantime what are you going to do?"
"Keep my eyes and ears open. There's something mighty strange about this whole thing."
The boys knew that obedience to Pete's commands was about the best thing they could do at the moment, so they hastened to conceal themselves within the altar, which afforded a comfortable hiding-place, even if it was a trifle hot. The poor professor was in great pain from his ankle, but Jack, after as able an examination as he could give the injured member, was unable to find that it was anything more than a severe sprain.
It did not take the professor long to become acquainted with what had happened within the last fifteen minutes, and, in his anxiety over the outcome of their situation, his pain was almost forgotten.
"If we only had the rifles," he breathed in such a savage voice that had the circumstances been different the boys could have smiled at the odd contrast between his mild, spectacled countenance and his bloodthirsty words.
It seemed hours, although in reality not more than half an hour elapsed, before Coyote Pete returned. His reappearance was not an orderly one. Instead, he landed in the interior of the altar in one bound. His face was streaming with sweat, and he looked anxious and worried.
"What news?" asked Jack.
"The worst," was the rejoinder.
"Have they found our camp?"
"Not yet, but that's only a question of a few minutes now. At present they are unhitching and cooking a meal. Luckily the shade at this time of day lies to the north-west of the mesa, so that they may not explore the other side for some time."
"Let us hope not. But what have you found out about them? What are they doing here?"
"Just what I suspicioned. They are a part of a gang of gun-runners."
"Gun-runners?"
"Yes. From listening to their conversation, I have found out that this insurrection's a heap worse than we ever supposed. Half of Chihuahua is up in arms ag'in the government, and they are plotting to blow up railroad bridges, cut wires, and paralyze the country generally. Then they are goin' ter raid all the American mines and get the gold."
"Why, dad's mine's in Chihuahua, close to the border," gasped Jack.
"I know it. I heard that greaser ragamuffin, Black Ramon, mention his name. Your dad's the first one they're goin' after——"
"The scoundrels."
"They owe him a grudge, you know, and now's their chance to get even."
"Do they know that dad is in Mexico now?"
"I didn't hear that. All I found out was what I told you, and that, as I said, they are running guns across the border. That wagon's loaded up with machine-guns in heavy cases. They are labeled as agricultural machinery, and were taken off the train by white accomplices seventy miles or more from here. They chose this part of the border, I guess, as even Uncle Sam would never suspect any one of trying ter get guns over them hills yonder."
"Well, they can't take a wagon over those rocky, desolate places. How are they going to get them across, do you suppose?" asked the professor, his pain almost forgotten in the tense interest of the moment.
"That's just the funny part uv it," said Pete; "they never mentioned the mountains. You don't suppose there's any other way they could get 'em over the border, do you?"
"Maybe they have an airship," suggested Walt Phelps.
"Maybe," said Pete quite gravely, "I wouldn't put nothin' past a greaser."
"Hush!" exclaimed Ralph suddenly, "somebody's coming."
With beating hearts they sank into absolute silence. The three boys crouched at one end of the hollow altar, the professor and Coyote Pete bundled together into as small a space as possible at the other.
Voices, conversing in Spanish, could now be heard, and, from the inflection, the boys judged that whoever was talking was very much astonished over something.
"I recognize that voice," said Jack suddenly, in a low whisper, "it's Ramon de Barros."
The other two boys nodded. Ralph Stetson's heart beat so hard and fast that it fairly shook his frame. Truly the predicament of the party was a terrible one. Discovery by as wolf-hearted a band of ruffians—if they were all like their leader—as ever infested the border, was inevitable within the next few minutes. Taking into consideration their connection with Black Ramon in the past, it was unlikely in the extreme that any mercy would be shown them. Never had any of them looked so closely into the dark face of danger.
Suddenly the listeners, crouching in their hiding-place, heard a shout of astonishment from the Mexicans.
"They've seen our camp over the edge of the mesa!" exclaimed Pete in a low, tense voice; "in another minute they'll start looking for us."
As he spoke, the voice which Jack had recognized as Black Ramon's, uttered a crisp, curt command of some sort. The lads could hear footsteps hurrying hither and thither. Without doubt, the order that meant their probable doom had just been given.
"I can't stand this a minute longer," cried Ralph suddenly. The boy's eyes were blazing wildly. Clenching his fist, he sprang to his feet.
"Come back here, you blockhead," snapped Jack, tugging his friend down. Ralph came backward sprawling, and landed in a heap in Jack's lap, knocking Walt Phelps with him. Together the three boys were tangled in a struggling heap.
"Get up," whispered Jack. "They'll hear us. You——"
He stopped short. All
at once an astonishing—an incredible thing—had happened. The floor beneath them,—the solid floor, as it had seemed,—began to tremble.
Before any of the amazed lads could utter a word, the foundation upon which they rested tipped, and, with a loud, ringing cry of terror from Ralph, they were plunged out of the sunlight into blackness as impenetrable as the pocket of Erebus.
CHAPTER IX.
IN THE MESA DWELLERS' BURIAL GROUND.
Down, down, they plunged, bumping and scraping painfully in the darkness. Terror had deprived them of speech or the power of uttering a sound, or they would have shouted. As it was, however, when they finally landed in a heap on some hard surface at the foot of the steep declivity down which they had fallen, it was some seconds before any of them breathed a word. Then it was Jack who spoke.
"Fellows!"
"Yes, Jack." The rejoinder came out of the darkness in Walt Phelps' voice.
"Ralph, are you there?"
"No; I'm dead. That is, I feel as if every bone in my body had been broken. What in the name of Old Nick has happened?"
"Thank goodness there are no bones broken," breathed Jack thankfully, as Ralph spoke, "as to what happened, you can take your own guess on it. My idea is that there was some sort of hinged trap-door at the bottom of that altar, and that when our combined weight came upon it at the time I pulled Ralph down, the blamed old thing tipped and dumped us down in here."
"That's my idea, too," chimed in Walt. "Can't account for it in any other way. But what is 'here'? Where are we?"
"You can answer that as well as I can," was the rejoinder. "Anybody got a match? Oh, here; all right, I've got some, plenty in fact—a whole pocketful."
Jack struck a lucifer, and as its yellow glare lit up their surroundings, they could not repress a cry of astonishment. They had landed at the foot of a steep flight of stairs, at the summit of which they correctly surmised was the trap-door through which they had been so startlingly dumped.
The Border Boys Across the Frontier Page 5