It was a five-days' journey on foot, as he calculated it--nobody in that country ever had walked it, as far as he could learn--to Tim Sullivan's ranch on Poison Creek. Now, in the decline of the fifth day he had come to Poison Creek, a loud, a rapid, and boisterous stream which a man could cross in two jumps. It made a great amount of noise in its going over the boulders in its bed, as a little water in a vast arid land probably was justified by its importance in doing. It was the first running water Mackenzie had met since leaving the Big Wind, clear as if it came unpolluted by a hoof or a hand from its mountain source. But somewhere along its course Tim Sullivan grazed and watered forty thousand sheep; and beyond him were others who grazed and watered many times that number. Poison Creek might well enough merit its name from the slaver of many flocks, the schoolmaster thought, although he knew it came from pioneer days, and was as obscure as pioneer names usually are obscure. And some day he would be watering his thousands of sheep along its rushing vein. That was John Mackenzie's intent and purpose as he trudged the dusty miles of gray hills, with their furze of gray sage, and their gray twilights which fell with a melancholy silence as chilling as the breath of death. For John Mackenzie was going into the sheeplands to become a master. He had determined it all by mathematical rule. There was the experience to be gained first, and it was cheaper to do that at another man's expense than his own. He knew how the right kind of a man could form a partnership with a flockmaster sometimes; he had heard stories of such small beginnings leading to large ownership and oily prosperity. Jasper had examples of its own; he was familiar with them all. Some of them began as herders on the basis of half the increase from a stated number of sheep not more than ten years past. Now they looked upon a sixty-dollars-a-month schoolteacher with the eyes of superiority, as money always despises brains which it is obliged to hire, probably because brains cannot devise any better method of finding the necessary calories than that of letting themselves out by the month. Tim Sullivan needed herders; he had advertised for them in the Jasper paper. Besides, Tim had the name of a man who could see the possibilities in another. He had put more than one young fellow on the way of success in the twenty years he had been running sheep on the Poison Creek range. But failing to land a partnership deal with Sullivan, Mackenzie was prepared to take a job running sheep by the month. Or, should he find all avenues to experience at another man's expense closed to him, he was ready to take the six hundred dollars saved out of his years of book bondage and buy a little flock of his own. Somewhere in that wide expanse of government-owned land he would find water and grazing, and there his prosperity would increase.