"A jack rabbit, by the powers!" Sure enough, a big white jack leaped up and darted away. A jack is speedier than a coyote, so Hartigan could not resist. "Hi, Hi, Hi!" he shouted to Blazing Star; and with flat hand on the croup, he raised the speed to top gear in a few jumps. It was a fair sight to behold, and to many a cow-man it would have been information. The jack rabbit, next to the antelope, is the speediest quadruped on the plains. The cowboy does not try to follow the jack rabbit, but the blooded racer did. In a quarter of a mile the horse was nearly on him. He dodged like chain lightning--dodged as his life had taught him to dodge before the coyote and the hawk. The horse slowed up; the rabbit crossed a ridge; and when the rider reined upon the top, the jack was no more seen. But just ahead was a finer sight. A band of antelope sprang forward with their white sterns shining. Of all the quadrupeds on the Plains, the antelope is the speediest. The greyhound can catch the hare; but is left a hopeless laggard by the swift-footed courser. No mounted Indian ever dreamed of overtaking the antelope in open chase. In speed it stands the highest in the West. Jim had often wished to match his steed against these plains-born coursers; but, hitherto, although antelope were often seen, they were protected by rough gullies or boulders or badger holes. A band of antelope on a level, open stretch was a glorious chance. Bending low over his horse's neck, he shouted: "Now, Blazing Star, go it; ho! boy, go it!" and struck the flank behind for clear interpretation. The horse sprang forth at speed. The bounding wild things, just ahead, laid back their ears and went so fast that not a leg was seen, only a whizzing, blurred maze. And Blazing Star took in the thought and travelled faster and faster. The furlong start they had began to shrink. "Good boy!" the rider shouted in elation. "Go it! go it, Blazing Star!" The antelope spurted--for a moment held their own; then, weakening at a mile, they lost so fast that Jim yelled and swung his hat, and in a little more the herd was overtaken. Fear seemed to rob them of power as Blazing Star dashed in among them. The bright-eyed pronghorns swerved; and the band split wide, and the horse dashed through. As he wheeled and galloped back, he shouted: "You saw that, Belle? You saw it? It has never been done before. In a fair race, on open stretch, they had two hundred yards' start and I caught them in a mile. Now I know what Blazing Star is. No creature on legs can beat him; no horse in the West can match him." In a little while the riders turned again to Cedar Mountain. Hartigan led the way--and the talk. It was a stirring ride, but Belle's face wore a worried look when he left her. CHAPTER XXX The Fire