Dropping his rifle beside the other he lowered himself over the edge and slid rapidly down. When half-way down the last rope his burning hands slipped and he fell head over heels, and landed on Doc, knocking him over and partially stunning him. Cavalry's only idea now was to escape from the men who, as he thought, were guarding the rope and, hastily picking himself up, he dashed towards the chaparral to the west as fast as he could run, every moment expecting to feel the hot sting of a bullet. At last, when the chaparral closed about him he plunged through it recklessly and ran until sheer exhaustion made him drop insensible to the sand. He had run far, much farther than he could have gone were it not for the stimulus of the fear which gripped him; and had he noticed where he was going he would have known that he was running up a slope, a slope which eventually reached a level higher than the top of the mesa. And when he dropped if he had been capable of observation he would have found himself in a chaparral which arose above his head, and seen the narrow lane through it which led to a great expanse of sand, tawney and blotched with ash-colored alkali, an expanse which stretched away to the desolate horizon. Shortly after Cavalry's descent Antonio stirred, opened his eyes, stared vaguely about him and, feeling his bruised and aching throat, staggered to his feet and stumbled to the east, hardly conscious of what he was doing. As he proceeded his breath came easier and he began to remember having seen Doc lying quiet against a rock. He hesitated a moment as he wondered if Doc was dead and if so, who had killed him. Then he swore because he had not given him a shot to make sure that he would not rejoin his friends. Hesitating a moment he suddenly decided that he would be better off if he put a good distance between himself and the mesa, and ran on again, eager to gain the shelter of the chaparral. When Doc opened his eyes and groped around he slowly remembered what had occurred and his first conscious act was to look to see if his expected victim were dead or alive. It did not take him long to realize that he was alone and his hand leaped for his Colt as he peered around. Limping out on the plain he caught sight of the running Mexican, rapidly growing indistinct, and hazarded two shots after him. Antonio leaped into a new speed as though struck with a whip and cursed himself for not having killed the H2 puncher when he had the chance. A moment more and he was lost in the thickets. Doc tried to follow, but his leg, hurt by Cavalry's meteoric descent, was not equal to any great demand for speed and so, turning, he made his way towards the camp to get a horse and return to take up the Mexican's trail.