"Hi, there, you old reprobate! Beat it!" he cried.
The bull stood his ground with lowered head and rumbled threats until the horseman was almost upon him; then he turned quickly aside as the rider went past.
"That's better," remarked Custer, as the girl joined him.
"You're not a bit afraid of him, are you, Custer? You're not afraid of anything."
"Oh, I wouldn't say that," he demurred. "I learned a long time ago that most encounters consist principally of bluff. Maybe I've just grown to be a good bluffer. Anyhow, I'm a better bluffer than the Emperor. If the rascal had only known it, he could have run me ragged."
As they rode up the side of the basin, the man's eyes moved constantly from point to point, now noting the condition of the pasture grasses, or again searching the more distant hills. Presently they alighted upon a thin, wavering line of brown, which zigzagged down the opposite side of the basin from a clump of heavy brush that partially hid a small ravine, and crossed the meadow ahead of them.
"There's a new trail, Grace, and it don't belong there. Let's go and take a look at it."
They rode ahead until they reached the trail, at a point where it crossed the bottom of the basin and started up the side they had been ascending. The man leaned above his horse's shoulder and examined the trampled turf.
"Horses," he said. "I thought so, and it's been used a lot this winter. You can see even now where the animals slipped and floundered after the heavy rains."
"But you don't run horses in this pasture, do you?" asked the girl.
"No; and we haven't run anything in it since last summer. This is the only bunch in it, and they were just turned in about a week ago. Anyway, the horses that made this trail were mostly shod. Now what in the world is anybody going up there for?" His eyes wandered to the heavy brush into which the trail dis-
