He waited until in obedience to his suggestion Betty had withdrawn to a safe distance toward the ranchhouse. Then with Kelton holding the black's head he placed the saddle on, then the bridle, working with a sure swiftness that brought an admiring glint into Betty's eyes. Then he deliberately coiled his rope and fastened it to the pommel of the saddle, taking extra care with it. This done he turned with a cold grin to Kelton, nodding his head shortly.

Kelton pulled the neckerchief from the black's eyes, let go of its head, and scurried to the top of the corral fence. Before he could reach it Calumet had vaulted into the saddle, and before the black could realize what had happened, his feet were in the stirrups.

For an instant the Black stood, its legs trembling, the muscles under its glossy coat quivering, its ears laid flat, its nostrils distended, its mouth open, its eyes wild and bloodshot. Then, tensed for movement, but uncertain, waiting a brief instant before yielding to the thousand impulses that flashed over him, he felt the rowels of Calumet's spurs as they were driven viciously into his sides.

He sprang wildly upward, screaming with the sudden pain, and came down, his legs asprawl, surprised, enraged, outraged. Alighting, he instantly lunged—forward, sideways, with an eccentric movement which he felt must dislodge the tormentor on his back. It was futile, attended with punishment, for again the sharp spurs sank in, were jammed into his sides, held there—rolling, biting points of steel that hurt him terribly.

He halted for a moment, to gather his wits and his strength, for his former experiences with this strange type of creature who clung so tenaciously to his back had taught him that he must use all his craft, all his strength, to dislodge him. To his relief, the spurs ceased to bite. But he was not misled. There was that moment near the corral fence when he had not moved, but still the spurs had sunk in anyway. He would make certain this time that the creature with the spurs would not have another opportunity to use them. And, gathering himself for a supreme effort, he lunged again, shunting himself off toward a stretch of plain back of the ranchhouse, bounding like a ball, his back arched, his head between his forelegs, coming down from each rise with his hoofs bunched so that they might have all landed in a dinner plate.

It was fruitless. Calumet remained unshaken, tenacious as ever. The black caught his breath again, and for the next five minutes practiced his whole category of tricks, and in addition some that he invented in the stress of the time.

To Betty, watching from her distance, it seemed that he must certainly unseat Calumet. She had watched bucking horses before, but never had her interest in the antics of one been so intense; never had she been so desperately eager for a rider's victory; never had she felt so breathlessly fearful of one's defeat. For, glancing from the corners of her eyes at Kelton, she saw a scornful, mocking smile on his face. He was wishing, hoping, that the black would throw Calumet.

At the risk of danger from the black's hoofs she urged Blackleg forward to a more advantageous position. As she brought him to a halt, she heard Kelton beside her.

"Some sunfisher, that black," he remarked.

She turned on him fiercely. "Keep still, can't you!" she said.