"No, no—please, Uncle Will," begged the lad. "They can't get me as long as I'm on Sheep."

Phil and the Dean laughed.

"I'll look out for him," said the young man. "Only," he added to the boy, "you must keep out of the way."

"And see that you stick to Sheep, if you expect him to take care of you," finished the Dean, relenting.

Meanwhile the gate between the corrals had been thrown open, and with Bob to guard the opening Curly rode in among the unbroken horses to cut out the animal indicated by Phil, and from within that circular enclosure, where the earth had been ground to fine powder by hundreds of thousands of frightened feet, came the rolling thunder of quick-beating hoofs as in a swirling cloud of yellow dust the horses rushed and leaped and whirled. Again and again the frightened animals threw themselves against the barrier that hemmed them in; but that fence, built of cedar posts set close in stockade fashion and laced on the outside with wire, was made to withstand the maddened rush of the heaviest steers. And always, amid the confusion of the frenzied animals, the figure of the mounted man in their midst could be seen calmly directing their wildest movements, and soon, out from the crowding, jostling, whirling mass of flying feet and tossing manes and tails, the black with the white star shot toward the gate. Bob's horse leaped aside from the way. Curly's horse was between the black and his mates, and before the animal could gather his confused senses he was in the larger corral. The day's work had begun.

The black dodged skillfully, and the loop of Curly's riata missed the mark.

"You better let somebody put eyes in that rope, Curly," remarked Phil, laconically, as he stepped aside to avoid a wild rush.

The chagrined cowboy said something in a low tone, so that Little Billy could not hear.

The Dean chuckled.

Bob's riata whirled, shot out its snaky length, and his trained horse braced himself skillfully to the black's weight on the rope. For a few minutes the animal at the loop end of the riata struggled desperately—plunging, tugging, throwing himself this way and that; but always the experienced cow-horse turned with his victim and the rope was never slack. When his first wild efforts were over and the black stood with his wide braced feet, breathing heavily as that choking loop began to tell, the strain on the taut riata was lessened, and Phil went quietly toward the frightened captive.