For a few terrible seconds Hollis sat in the saddle while the world reeled around him; while the rocks and cliffs danced fantastically. Courage he had to be sure; he had already become resigned to death before the man's rifle, but he had imagined the man to be in full possession of his senses; imagined his death to have been planned out of the deliberate coolness of reason. Such a death would have been bad enough, but to meet death at the hands of a man mentally unbalanced! Somehow it seemed different, seemed horribly unreal--like a terrible nightmare. It was some seconds before he regained control of himself, and then he steadied himself in the saddle, assuring himself in a burst of bitter, ironic humor that death at the hands of a crazy man could be no worse than death at the hands of a rational one. He looked up again, a defiant smile on his lips, to see that both man and rifle had disappeared. In a flash he saw his chance and took advantage of it. In an instant he was off his pony; in another he was behind a convenient rock, breathing easier, his senses alert. For some little time he remained in the shelter of the rock, awaiting the other man's movements. He did not doubt that acting upon some freakish impulse, the man had left his boulder and was even now stalking him from some other direction. He peered carefully about him. He had no thought of shooting the man--that would be murder, for the man was not mentally responsible for his actions. His efforts must be centered solely upon some plan for saving his own life. To do this he realized that he must be careful. In view of the man's unerring marksmanship it would be certain death for him to expose himself for an instant. But he must take some chances. Convinced of this he peered around the edge of his rock, taking a flashing glance around him. The man was nowhere to be seen. Hollis waited some little time and then taking another glance and not seeing the man, rose slowly to his feet and crouched. Then, filled with a sudden, reckless impulse, he sprang for another rock a dozen feet distant, expecting each instant to hear the crash of the man's rifle. But he succeeded in gaining the shelter of the other rock intact. Evidently the man was looking for him in some other direction. Emboldened with his success he grimly determined on advancing to another rock some twenty or thirty feet farther on. As in the first instance he succeeded in gaining it in safety. His maneuvering had been circuitous, bringing him into a position from which he could see partly behind the rock where the man had been concealed.