The herd leaders, reading the signs of a spring close at hand, quickened the pace. With necks outstretched, bawling loudly, they hurried forward. Forty-eight hours ago they had last satisfied their thirst. Usually Doble watered each noon, but the desert yesterday had been dry as Sahara. Only such moisture was available as could be found in black grama and needle grass.

The point of the herd swung in toward the cottonwoods that straggled down from the draw. For hours the riders were kept busy moving forward the cattle that had been watered and holding back the pressure of thirsty animals.

Again the outfit took the desert trail. Heat waves played on the sand. Vegetation grew scant except for patches of cholla and mesquite, a sand-cherry bush here and there, occasionally a clump of shining poison ivy.

Sunset brought them to the Salt Flats. The foreman gave orders to throw off and make camp.

A course was chosen for the race. From a selected point the horses were to run to a clump of mesquite, round it, and return to the starting-place. Dug Doble was chosen both starter and judge.

Dave watched Whiskey Bill with the trained eyes of a horseman. The animal was an ugly brute as to the head. Its eyes were set too close, and the shape of the nose was deformed from the effects of the rattlesnake's sting. But in legs and body it had the fine lines of a racer. The horse was built for speed. The cowpuncher's heart sank. His bronco was fast, willing, and very intelligent, but the little range pony had not been designed to show its heels to a near-thoroughbred.

"Are you ready?" Doble asked of the two men in the saddles.

His brother said, "Let 'er go!" Sanders nodded. The revolver barked.

Chiquito was off like a flash of light, found its stride instantly. The training of a cowpony makes for alertness, for immediate response. Before it had covered seventy-five yards the pinto was three lengths to the good. Dave, flying toward the halfway post, heard his friend Hart's triumphant "Yip yip yippy yip!" coming to him on the wind.

He leaned forward, patting his horse on the shoulder, murmuring words of encouragement into its ear. But he knew, without turning round, that the racer galloping at his heels was drawing closer. Its long shadow thrown in front of it by the westering sun, reached to Dave's stirrups, crept to Chiquito's head, moved farther toward the other shadow plunging wildly eastward. Foot by foot the distance between the horses lessened to two lengths, to one, to half a length. The ugly head of the racer came abreast of the cowpuncher. With sickening certainty the range-rider knew that his Chiquito was doing the best that was in it. Whiskey Bill was a faster horse.