The lad suspected the identity of the red-skin, although, having never seen him, it amounted only to a suspicion. No matter who he was, however, he was prepared for him. The Apache showed his usual cunning. He was evidently attempting to steal upon the sentinels, and, having risen to his feet, he remained motionless and upright, listening for any sign that might betray any motion of the individuals whom he was seeking to slay, as does the assassin at night. “He must have been after _me_, for he is right behind where I stood,” thought the boy, as he grasped his rifle more firmly than ever, resolved to fire upon the wretch the moment he attempted to advance. Lone Wolf stood but a minute in the position described, when, seemingly, he was satisfied that the way was clear, and, throwing one moccasin on the trunk, he climbed over as silently as a shadow, and stood again holt upright upon the other side. This brought the Indian and boy within ten feet of each other, and still the advantage was all upon the side of the latter, who stood in such deep shadow that he was not only invisible, but his presence was unsuspected. The Indian was not gazing in the direction of the lad, but seemed to turn his attention more to the left, toward the spot where Mickey O'Rooney, the Irishman, was stationed. In ignoring the proximity of a boy, it cannot be said that he acted unreasonably. Lone Wolf remained like a carven statue for a few seconds longer, and then began a cautious movement forward. In the moonlight, Fred could observe the motion of the foot, and the gradual advance of the body. He felt that it would not do to defer any longer his intention of obstructing him. If permitted to go on in this manner, he might kill Mickey O'Rooney, and bring down a whole host of red-skins upon the sleeping settlers, cutting them off to a man. Fred had his rifle to his shoulder, and pointed toward the Indian. Suddenly stepping forward, he placed himself in the moonlight, and, with the muzzle of his piece almost at the breast of the chief, he said: “Another step forward, and I'll bore you through!” The lad did not stop to consider whether it was likely that the Indian understood the English tongue; but, as it happened, Lone Wolf could use it almost as if to the manner born; and it would have required no profound linguistic knowledge upon the part of anyone to have comprehended the meaning of the young hero. It was one of those situations in which gesture told the meaning more plainly than mere words could have done. But if ever there was an astonished aborigine, Lone Wolf was the same.