We were on his track at last, thanks to himself. The Dogs joined in with a louder baying, the Greyhounds yelped and made straight for him, and the Horses sniffed and sprang more gamely as they caught the thrill. The only silent one was the black-maned Wolf, and as I marked his size and power, and above all his long and massive jaws, I knew why the Dogs preferred some other trail.

With head and tail low he was bounding over the snow. His tongue was lolling long; plainly he was hard pressed. The wolvers' hands flew to their revolvers, though he was three hundred yards ahead; they were out for blood, not sport. But an instant later he had sunk from view in the nearest sheltered cañon.

Now which way would he go, up or down the cañon? Up was toward his mountain, down was better cover. King and I thought "up," so pressed westward along the ridge. But the others rode eastward, watching for a chance to shoot.

Soon we had ridden out of hearing. We were wrong—the Wolf had gone down, but we heard no shooting. The cañon was crossable here; we reached the other side and then turned back at a gallop, scanning the snow for a trail, the hills for a moving form, or the wind for a sound of life.

"Squeak, squeak," went our saddle leathers, "puff-puff" our Horses, and their feet "ka-ka-lump, ka-ka-lump."

X

WHEN BILLY WENT BACK TO HIS MOUNTAIN

We were back opposite to where the Wolf had plunged, but saw no sign. We rode at an easy gallop, on eastward, a mile, and still on, when King gasped out, "Look at that!" A dark spot was moving on the snow ahead. We put on speed. Another dark spot appeared, and another, but they were not going fast. In five minutes we were near them, to find—three of our own Greyhounds. They had lost sight of the game, and with that their interest waned. Now they were seeking us. We saw nothing there of the chase or of the other hunters. But hastening to the next ridge we stumbled on the trail we sought and followed as hard as though in view. Another cañon came in our path, and as we rode and looked for a place to cross, a wild din of Hounds came from its brushy depth. The clamor grew and passed up the middle.

We raced along the rim, hoping to see the game. The Dogs appeared near the farther side, not in a pack, but a long, straggling line. In five minutes more they rose to the edge, and ahead of them was the great Black Wolf. He was loping as before, head and tail low. Power was plain in every limb, and double power in his jaws and neck, but I thought his bounds were shorter now, and that they had lost their spring. The Dogs slowly reached the upper level, and sighting him they broke into a feeble cry; they, too, were nearly spent. The Greyhounds saw the chase, and leaving us they scrambled down the cañon and up the other side at impetuous speed that would surely break them down, while we rode, vainly seeking means of crossing.

How the wolver raved to see the pack lead off in the climax of the chase, and himself held up behind. But he rode and wrathed and still rode, up to where the cañon dwindled—rough land and a hard ride. As we neared the great flat mountain, the feeble cry of the pack was heard again from the south, then toward the high Butte's side, and just a trifle louder now. We reined in on a hillock and scanned the snow. A moving speck appeared, then others, not bunched, but in a straggling train, and at times there was a far faint cry. They were headed toward us, coming on, yes! coming, but so slowly, for not one was really running now. There was the grim old Cow-killer limping over the ground, and far behind a Greyhound, and another, and farther still, the other Dogs in order of their speed, slowly, gamely, dragging themselves on that pursuit. Many hours of hardest toil had done their work. The Wolf had vainly sought to fling them off. Now was his hour of doom, for he was spent; they still had some reserve. Straight to us for a time they came, skirting the base of the mountain, crawling.