His companion was one who thought of himself last. It humiliated Cameron that in spite of growing keenness he could not hinder him from doing more than an equal share of the day's work. The man was mild, gentle, quiet, mostly silent, yet under all his softness he seemed to be made of the fiber of steel. Cameron could not thwart him. Moreover, he appeared to want to find gold for Cameron, not for himself. Cameron's hands always trembled at the turning of rock that promised gold; he had enough of the prospector's passion for fortune to thrill at the chance of a strike. But the other never showed the least trace of excitement. One night they were encamped at the head of a canyon. The day had been exceedingly hot, and long after sundown the radiation of heat from the rocks persisted. A desert bird whistled a wild, melancholy note from a dark cliff, and a distant coyote wailed mournfully. The stars shone white until the huge moon rose to burn out all their whiteness. And on this night Cameron watched his comrade, and yielded to interest he had not heretofore voiced. "Pardner, what drives you into the desert?" "Do I seem to be a driven man?" "No. But I feel it. Do you come to forget?" "Yes." "Ah!" softly exclaimed Cameron. Always he seemed to have known that. He said no more. He watched the old man rise and begin his nightly pace to and fro, up and down. With slow, soft tread, forward and back, tirelessly and ceaselessly, he paced that beat. He did not look up at the stars or follow the radiant track of the moon along the canyon ramparts. He hung his head. He was lost in another world. It was a world which the lonely desert made real. He looked a dark, sad, plodding figure, and somehow impressed Cameron with the helplessness of men.