Dawn roused him to his tasks, stronger physically, eager and keen, but more watchful than he had been the preceding day and with less thrill than he had felt. He packed in half an hour and was traveling west when the sun rose. Gradually with the return of his habit of watchfulness came his former instinctive tendency to look back over his shoulder. He continually drove this away and it continually returned. The only sure banishment of it came through action, with its attendant exercise of his faculties. Therefore he rested less and walked more, taxing his strength to its utmost that morning, until the hot noon hour forced him to halt. Then while Jinny nibbled at the bitter desert plants Adam dozed in the thin shade of a mesquite. Close by grew a large _ocatilla_ cactus covered with red flowers among which bees hummed. Adam never completely lost sense of this melodious hum, and it seemed to be trying to revive memories that he shunned. The sun was still high and hot when Adam resumed travel, but it was westering and the slanting rays were bearable. After he got thoroughly warmed up and sweating freely he did not mind the heat, and was able to drive Jinny and keep up a strong stride for an hour at a time. His course now led along the base of the mountain wall, and that long low ridge which marked his destination began to seem less unattainable. The afternoon waned, the sun sank, the heat declined, and Jinny began to show signs of weariness. It bothered Adam to keep her headed straight. He searched the line where desert slope met the mountain wall for another green thicket of brush marking a water hole, but he could not see one. Darkness overtook him and he was compelled to make dry camp. This occasioned him some uneasiness, not that he did not have plenty of water for himself, but because he worried about the burro and the possibility of not finding water the next day. Nevertheless, he slept soundly. On the following morning, when he had been tramping along for an hour or more, he espied far ahead the unmistakable green patch of thicket that heralded the presence of water. The sight stirred him. He walked well that morning, resting only a couple of hours at noon; but the green patch, after the manner of distant objects on the desert, seemed just as far away as when he saw it first. The time came, however, when there was no more illusion and he knew he was getting close to the place. At last he reached it, a large green thicket that choked the mouth of a narrow canyon. He found a spring welling from under the mountain base and sending a slender stream out to be swallowed by the sand.