Some few hundred rods to the left of Gale the raider put his horse to the weathered slope. He began to climb. The horse was superb, infinitely more courageous than his rider. Zigzag they went up and up, and when Ladd reached the edge of the slope they were high long the cracked and guttered rampart. Once--twice Ladd raised the long rifle, but each time he lowered it. Gale divined that the ranger's restraint was not on account of the Mexican, but for that valiant and faithful horse. Up and up he went, and the yellow dust clouds rose, and an avalanche rolled rattling and cracking down the slope. It was beyond belief that a horse, burdened or unburdened, could find footing and hold it upon that wall of narrow ledges and inverted, slanting gullies. But he climbed on, sure-footed as a mountain goat, and, surmounting the last rough steps, he stood a moment silhouetted against the white sky. Then he disappeared. Ladd sat astride Blanco Sol gazing upward. How the cowboy must have honored that raider's brave steed!

Gale, who had been too dumb to shout the admiration he felt, suddenly leaped up, and his voice came with a shriek:

A big horse, like a white streak, was bearing down to the right of the ranger. Blanco Diablo! A matchless rider swung with the horse's motion. Gale was stunned. Then he remembered the first raider, the one Lash had shot at and driven away from the outlet. This fellow had made for the mesquite and had put a saddle on Belding's favorite. In the heat of the excitement, while Ladd had been intent upon the climbing horse, this last raider had come down with the speed of the wind straight for the western outlet. Perhaps, very probably, he did not know Gale was there to block it; and certainly he hoped to pass Ladd and Blanco Sol.

A touch of the spur made Sol lunge forward to head off the raider. Diable was in his stride, but the distance and angle favored Sol. The raider had no carbine. He held aloft a gun ready to level it and fire. He sat the saddle as if it were a stationary seat. Gale saw Ladd lean down and drop the .405 in the sand. He would take no chances of wounding Belding's best-loved horse.

Then Gale sat transfixed with suspended breath watching the horses thundering toward him. Blanco Diablo was speeding low, fleet as an antelope, fierce and terrible in his devilish action, a horse for war and blood and death. He seemed unbeatable. Yet to see the magnificently running Blanco Sol was but to court a doubt. Gale stood spellbound. He might have shot the raider; but he never thought of such a thing. The distance swiftly lessened. Plain it was the raider could not make the opening ahead of Ladd. He saw it and swerved to the left, emptying his six-shooter as he turned. His dark face gleamed as he flashed by Gale.

Blanco Sol thundered across. Then the race became straight away up the valley. Diablo was cold and Sol was hot; therein lay the only handicap and vantage. It was a fleet, beautiful, magnificent race. Gale thrilled and exulted and yelled as his horse settled into a steadily swifter run and began to gain. The dust rolled in a funnel-shaped cloud from the flying hoofs. The raider wheeled with gun puffing white, and Ladd ducked low over the neck of his horse.

The gap between Diablo and Sol narrowed yard by yard. At first it had been a wide one. The raider beat his mount and spurred, beat and spurred, wheeled round to shoot, then bent forward again. In his circle at the upper end of the valley he turned far short of the jumble of rocks.

All the devil that was in Blanco Diablo had its running on the downward stretch. The strange, cruel urge of bit and spur, the crazed rider who stuck like a burr upon him, the shots and smoke added terror to his natural violent temper. He ran himself off his feet. But he could not elude that relentless horse behind him. The running of Blanco Sol was that of a sure, remorseless driving power--steadier--stronger--swifter with every long and wonderful stride.