"Cut it out, Nort!" came from the fat lad, who looked enough like the daring rider to be his brother, as, indeed, he was.

"Oh, let me alone, Dick!" snapped the other. "I can ride!"

"Some ridin'! Oh, boy, some ridin'!" murmured the fat assistant foreman of Diamond X, while his companions grinned.

"You may know how to ride an ordinary horse," admitted Bud with a smile, as he coiled the rope which one of the men handed to him. "But Tartar isn't a regular pony. He's an outlaw, and even Del Pinzo won't take a chance on him. I don't see how they come to let you," he added, gazing somewhat reproachfully at the assembled cowboys.

They had begun to slink away, for they recognized the pseudo-authority held by the son of the ranch owner. Still they could justify their action, somewhat.

"He wanted to ride," declared Babe Milton. "Would have it so, and we roped Tartar for him. I told him your pa wouldn't like it if he was here, but——"

"I reckon you thought you'd see some fun," said Bud, half smiling, for though he realized that the strange lad had been in some danger, he also realized that the cowboys, fond as they were of fun and practical jokes, would not have allowed the matter to go too far.

"It's up to me!" declared the slim lad, trying to brush some of the dust and horse hair from his clothes. "'Tisn't their fault at all."

"Good kid," murmured some of the cowboys, glad to be thus vindicated.

"I told him to keep off," said the fat lad, following Bud and the daring rider from the corral. "I told him to pick a quiet horse, but he said he wanted a bucker."