Wallace, Frank and Jim were stationed at a point below the break where Stewart had evidently gone up and out. How a horse could have climbed that streaky white slide was a mystery. Jones's instructions to the men were to wait until the mustangs were close upon them, and then yell and shout and show themselves. He took me to a jutting corner of cliff, which hid us from the others, and here he exercised still more care in scrutinizing the lay of the ground. A wash from ten to fifteen feet wide, and as deep, ran through the cañon in a somewhat meandering course. At the corner which consumed so much of his attention, the dry ditch ran along the cliff wall about fifty feet out; between it and the wall was good level ground, on the other side huge rocks and shale made it hummocky, practically impassable for a horse. It was plain the mustangs, on their way up, would choose the inside of the wash; and here in the middle of the passage, just round the jutting corner, Jones tied our horses to good, strong bushes. His next act was significant. He threw out his lasso and, dragging every crook out of it, carefully recoiled it, and hung it loose over the pommel of his saddle. "The White Mustang may be yours before dark," he said with the smile that came so seldom. "Now I placed our horses there for two reasons. The mustangs won't see them till they're right on them. Then you'll see a sight and have a chance for a great picture. They will halt; the stallion will prance, whistle and snort for a fight, and then they'll see the saddles and be off. We'll hide across the wash, down a little way, and at the right time we'll shout and yell to drive them up." By piling sagebrush round a stone, we made a hiding-place. Jones was extremely cautious to arrange the bunches in natural positions. "A Rocky Mountain Big Horn is the only four-footed beast," he said, "that has a better eye than a wild horse. A cougar has an eye, too; he's used to lying high up on the cliffs and looking down for his quarry so as to stalk it at night; but even a cougar has to take second to a mustang when it comes to sight." The hours passed slowly. The sun baked us; the stones were too hot to touch; flies buzzed behind our ears; tarantulas peeped at us from holes. The afternoon slowly waned. At dark we returned to where we had left Wallace and the cowboys. Frank had solved the problem of water supply, for he had found a little spring trickling from a cliff, which, by skillful management, produced enough drink for the horses. We had packed our water for camp use. "You take the first watch to-night," said Jones to me after supper. "The mustangs might try to slip by our fire in the night and we must keep a watch or them. Call Wallace when your time's up. Now, fellows, roll in."