"Sure thing," declared Joe, as he scratched a match to light a cigarette that he had just finished rolling; "a prairie or a mountain horse can go along in the dark without anybody guiding him a great deal better than he could if driven by the sharpest-sighted man."

"Donald might like to see it, but I hope with all my heart that we won't have a stampede on this round-up," Jack said.

"I hope not," replied Joe. "I have known of one man being killed and several men being hurt in stampedes, and if I can keep out of 'em I mean to do it. Now, look here, if one of you fellows will lend me his watch I'll set here and look after these cattle for an hour, and you two can go to sleep; then, after an hour, I'll call one of you and sleep myself, and an hour later he can call the other. By that time likely there'll be somebody out to relieve us."

"No," protested Donald; "you and Jack sleep, and let me watch. I have done less work than any one since I came here, and I can sit on this hill in the sun and see what the cattle are doing. If they make any movement I can call one of you."

"All right," assented Joe; "that'll suit me, if you feel like it."

Jack and Joe stretched themselves out on the ground and with their hats over their faces were soon breathing heavily in deep sleep. Donald sat on the hill and watched the cattle, but as time passed he grew more and more sleepy until finally he had almost made up his mind to stretch out and close his eyes—not really to sleep but just to think. However, as he looked at his watch just before this desire became overpowering, he saw that only ten minutes remained of his vigil, and so kept himself awake until it was time to call one of the others.

Joe on being roused shook himself, rose and walked a few yards back and forth in either direction and then, thoroughly awake, sat down and began to roll and smoke cigarettes.

Before the time came to call Jack, Mason and Charley Powell appeared on the scene, saying that they would stay with the cattle until it was time to bed them down. The other three gladly mounted their horses, trotted into camp and threw themselves on the ground in the shade, where they slept until the cook shouted the call for supper.

After the meal was over Jack sat down by the fire close to the Mexican.