Along with the wagon had come the fresh horses—among them Peroxide Jim, a supple, powerful, clean-limbed buckskin, that had, I think, as fine and intelligent an animal-face as any creature I ever saw. And why should he not have been saved fresh for just such a need as this? Are there not superior horses as well as superior men—a Peroxide Jim to complement a Wade?

The horse plainly understood the situation, Wade told me; and though there was nothing like sentiment for horse-flesh about the boss of the P Ranch riders, his faith in Peroxide Jim was absolute.

The other night-horses were saddled and tied to the wheels of the wagon. It was Wade's custom to take his turn with the second watch; but shifting his saddle to Peroxide Jim, he rode out with the four of the first watch, who, evenly spaced, were quietly circling the herd.

The night, for this part of the high desert, was unusually warm. It was close, still, and without a sky. The near, thick darkness blotted out the stars. There is usually a breeze at night over these highest rim-rock plains which, no matter how hot the day may have been, crowds the cattle together for warmth. To-night not a breath stirred the sage as Wade wound in and out among the bushes, the hot dust stinging his eyes and caking rough on his skin.

Round and round moved the weaving shifting forms, out of the dark and into the dark, a gray spectral line like a procession of ghosts, or some morris dance of the desert's sheeted dead. But it was not a line, it was a sea of forms; not a procession, but the even surging of a maelstrom of hoofs a mile around.

Wade galloped out on the plain for a breath of air and a look at the sky. A quick cold rain would quiet them; but there was not a feel of rain in the darkness, no smell of it on the air. Only the powdery taste of the bitter sage.

The desert, where the herd was camped, was one of the highest of a series of table-lands, or benches; it lay as level as a floor, rimmed by a sheer wall of rock from which there was a drop to the bench of sage below. The herd had been headed for a pass, and was now halted within a mile of the rim-rock on the east, where there was a perpendicular fall of about three hundred feet.

It was the last place an experienced plainsman would have chosen for a camp; and every time Wade circled the herd, and came in between the cattle and the rim, he felt the nearness of the precipice. The darkness helped to bring it near. The height of his horse brought it near—he seemed to look down from his saddle over it, into its dark depths. The herd in its milling was surely warping slowly in the direction of the rim. But this was all fancy, the trick of the dark and of nerves—if a plainsman has nerves.

At twelve o'clock the first guard came in and woke the second watch. Wade had been in the saddle since dawn, but this was his regular watch. More than that, his trained ear had timed the milling hoofs. The movement of the herd had quickened.

If now he could keep them going, and could prevent their taking any sudden fright! They must not stop until they stopped from utter weariness. Safety lay in their continued motion. So the fresh riders flanked them closely, paced them, and urged them quietly on. They must be kept milling and they must be kept from fright.