Slim Degnan and Bud had ridden off to look for a break in one of the many long lines of wire fences that kept the stock of Diamond X somewhat within bounds, and it had taken longer to locate and repair the break than they had counted on.

They had been obliged to remain out all night—not that this was unusual, only they had not exactly prepared for it—and, in consequence, did not have all the ordinary comforts. But, as Bud had said, he had not minded it. However, the ponies were rather used up, and the riders in the same condition, and it was with equal feelings of relief that they came within sight of the last hill that lay between them and the ranch.

"Well, might as well mosey along," spoke Slim, at length. "Sooner we get some water inside us, an' th' ponies, th' better we'll all be."

"I reckon," agreed Bud. "But I don't believe Zip Foster could have done the job any quicker than we did."

"Who?" queried Slim, with a quizzical look at his companion.

"Zip Foster," answered Bud.

"Never heard of him. What outfit does he ride for?" asked the foreman, but he saved Bud the embarrassment of answer by suddenly rising in his saddle and looking off in the distance.

Bud had his own reasons for not answering that seemingly natural question, and he was glad of the diversion, though he was not at once aware of what had caused it. But he followed the direction of the foreman's gaze, and, like him, saw arising in the still air, about two miles away, a thin thread of smoke—a mere wisp, as though it had dangled down from some fleecy cloud. But the smoke was ascending and was not the beginning of a fog descending.

"Can't be any of our boys," murmured Slim. "They aren't out on round-up yet. An' it's too early for grub."

"Indians?" questioned Bud. Sometimes the bucks from a neighboring reservation felt the call of the wild, and slipped out to have a forbidden feast on some cattleman's stock, only to be brought up with a round turn by the government soldiers.