But as he sped along a fresh difficulty presented itself. The hillside at this point seemed to be alive with blue-jays. They flew screaming up, as he made his way along, and Nat knew that if they had acted as a warning to him of approaching danger the vociferous birds would be equally probable to arouse the suspicions of whoever was coming his way.
He paused to listen for a second, and was glad he had done so. The horsemen, to judge from their voices, had already reached the spot upon which he had been standing when he first heard them. What wind there was blew toward him and he could hear their words distinctly.
"Those jays are acting strangely, Manuello. I wonder if there is anybody here."
"I do not know, colonel," was the reply from the other unseen speaker, "if there is it will be to our advantage to find him. We don't want spies near the Wolf's Mouth."
"Wolf's Mouth," thought Nat, "If that's the name of that abyss it's well called."
"You are right, Manuello," went on the first speaker, "after what Dayton told us about those boys I don't feel easy in my mind as long as they are in our neighborhood. If Dayton and the others had not miscalculated yesterday we shouldn't have been bothered with them any longer."
"No," was the rejoinder, "it's a pity that boulder didn't hit them and pound them into oblivion. Just because they happen to be boys doesn't make them any the less dangerous to us."
At this unlucky moment, while Nat was straining his ears to catch every word of the conversation a stone against which he had braced one of his feet gave way. Ordinarily he would have hardly noticed the sound it made as it went bounding and rolling down the hillside, but situated as he was, the noise seemed to be as startling and loud as the discharge of a big gun.
"What was that?" asked the man who had been addressed as "colonel."
"A dislodged stone," was the reply, "someone is in there; the blue-jays didn't fly up for nothing."
"So it would seem. We had better investigate before going farther."
"Still, it is important that we find where those boys are camped."
"That is true, but it is more important that we find out who is in that brush."
Without any more delay, the two horses were turned into the hillside growth. Nat could hear their feet slipping and sliding among the loose rocks on the mountain as they came toward him. He did not dare to run for fear of revealing his whereabouts.
Close at hand was a piñon tree, which spread out low-growing branches all about. Nat, as he spied it, decided that if he could get within its leafy screen unobserved he would, if luck favored him, escape the observation of the two men – one of whom he was certain now, must be the famous, or infamous, Col. Morello himself.
Without any repetition of the unlucky accident of the minute before, he crept to the trunk of the tree and hoisted himself noiselessly up. As he had surmised, the upper branches made a comfortable resting place impervious to the view from below.
Hardly had he made himself secure, before the horses of the two outlaws approached the tree and, rather to Nat's consternation, halted almost immediately beneath it.
Could the keen-eyed leader of the outlaw band have discovered his hiding place? It was the most anxious moment of the boy's life.
CHAPTER XVI
THE HORNS OF A DILEMMA
Few men, and still fewer boys, have ever been called upon to face the agonizing suspense which Nat underwent in the next few seconds. So close were the men to his hiding place that his nostrils could scent the sharp, acrid odor of their cigarettes. He was still enough as he crouched breathless upon the limb to have been carved out of wood, like the branch upon which he rested. He did not even dare to wink his eyes for fear of alarming the already aroused suspicions of the two men below him.
"Guess those jays got scared at a lion or something," presently decided the man who had been addressed as "colonel."
Nat, peering through his leafy screen, could see him as he sat upright on his heavy saddle of carved leather and looked about him with a pair of hawk-like eyes.
Colonel Morello, for Nat had guessed correctly when he concluded that the man was the famous leader, was a man of about fifty years, with a weather-beaten face, seamed and lined by years of exposure and hard living. But his eye, as has been said, was as keen and restless as an eagle's. A big scar made a livid mark across his cheek indicating the course of a bullet, fired years before when Morello had been at the head of a band of Mexican revolutionists. In that capacity, indeed, he had earned his brevet rank of "colonel."
A broad-brim gray sombrero, with a silver embossed band of leather about it, crowned the outlaw chief's head of glossy black hair, worn rather long and streaked with gray. Across his saddle horn rested a long-barrelled automatic rifle, of latest make and pattern. For the rest his clothes were those of an everyday mountaineer with the exception of a wide red sash. His horse was a fine buckskin animal, and was almost as famous in Sierran legend as its redoubtable master.
His companion was a squat, evil-visaged Mexican, with none of the latent nobility visible under the cruelty and rapaciousness which marred what might have once been the prepossessing countenance of Morello. His black hair hung in dank, streaky locks down to the greasy shoulders of his well-worn buckskin coat, and framed a wrinkled face as dark as a bit of smoked mahogany, in which glittered, like two live coals, a pair of shifty black eyes. He was evidently an inferior to the other in every way – except possibly in viciousness.
Such were the two men who had paused below the tree in which was concealed, none too securely, the leader of the young Motor Rangers. As to what his fate might be if he fell into their hands Nat could hazard a guess.
All at once the lad noticed that the branch of the tree upon which he was lying was in motion. His first thought was that one of the men might be shaking it in some way. But no – neither of them had moved. They were seemingly following the remark of the colonel regarding the blue-jays, and taking a last look about before leaving. In another moment Nat would have been safe, but as he moved his eyes to try and see what had shaken the bough he suddenly became aware of an alarming thing.
From the branch of another tree which intertwined with the one in which he was hidden, there was creeping toward him a large animal. The boy gave a horrified gasp as he saw its greenish eyes fixed steadily on him with a purposeful glare.
Step by step, and not making as much noise as a stalking cat, the creature drew closer. To Nat's terrified imagination it almost seemed as if it had already given a death spring, and that he was in its clutches.
Truly his predicament was a terrible one. If he remained as he was the brute was almost certain to spring upon him. On the other hand to make a move to escape would be to draw the attention of the outlaws to his hiding place.
"Phew," thought Nat, "talk about being between two fires!"
Instinctively he drew his revolver. He felt that at least he stood more of a chance with his human foes than he did with this tawny-coated monster of the Sierran slopes.
If the worst came to the worst he would fire at the creature and trust to luck to escaping from the opposite horn of his dilemma. But in this Nat had reckoned without his host – or rather, his four-footed enemy – for without the slightest warning the big creature launched its lithe body through the air. With a cry of alarm Nat dropped, and it landed right on the spot where a second before he had been. At the same instant the colonel and his companion wheeled their horses with a startled exclamation. The horses themselves, no less alarmed, were pawing the ground and leaping about excitedly.
The boy's fall, and the howl of rage from the disappointed animal, combined to make a sufficiently jarring interruption to the calm and quiet of the mountain side.
"Caramba! what was that?" the colonel's voice rang out sharply.
"It's a boy!" cried his companion, pointing to Nat's recumbent form. To the lad's dismay, in his fall his revolver had flown out of its holster and rolled some distance down the hillside. He lay there powerless, and too stunned and bruised by the shock of his fall to move.
But the great cat above him was not inactive. Foiled in its first spring it gathered itself for a second pounce but the colonel's sharp eye spied the tawny outline among the green boughs. Raising his rifle he fired twice. At the first shot there came a howl of pain and rage. At the second a crashing and clawing as the monster rolled out of the tree and fell in a still, motionless heap not far from Nat.
"Even the mountain lions seem to work for us," exclaimed the colonel triumphantly, as he dismounted and walked to Nat's side.
"Yes, señor, and if I make no mistake this lad here is one of the very boys we are in search of."
"You are right. These Americans are devils. I make no doubt but this one was on his way to spy into our manner of living at our fort. Eh boy, isn't that true?"
"No," replied Nat, whose face was pale but resolute. He scrambled painfully to his feet. Covered with dust, scratched in a dozen places by his fall through the branches, and streaming with perspiration, he was not an imposing looking youth right then; but whatever his appearance might have been, his spirit was dauntless.
"No," he repeated, "I came up here to look for a horse that one of us had lost."
"That's a very likely story," was the colonel's brief comment, in a dry, harsh tone. His eyes grew hard as he spoke. Evidently he had made up his mind that Nat was a spy.
"It is true," declared Nat, "I had no idea of spying into your affairs."
"Oh no," sneered the colonel vindictively, "I suppose you will tell us next that you did not know where our fort is; that you were not aware that it is up that gorge there?"
"This is the first I've heard of it," declared Nat truthfully.
"I hold a different opinion," was the rejoinder, "if you had not been up here on some mischievous errand you would not have concealed yourself in that tree. Eh, what have you to say to that?"
"Simply that from all I had heard of you and your band. I was afraid to encounter you on uneven terms, and when I heard you coming, I hid," replied Nat.
"That is it, is it? Well, I have the honor to inform you that I don't believe a word of your story. Do you know what we did with spies when I was fighting on the border?"