“All she needed to know now,” snapped back Chet. “Look alive!”

He was astride of Hero in a moment and the noble animal took the trail without urging. Dig whistled for Poke. Then he whistled again. The ugly, sleepy-looking animal stopped for just one more bite.

“Isn’t that just like you, you ornery brute!” growled Digby. “If ever I wanted you in a hurry you wouldn’t mind. Come on!”

He jumped for the horse, caught at the trailing bridle, and Poke stood on his hind legs and pawed the air, his eyes suddenly afire, striving to wheel about and escape Dig’s clutching hand.

Digby Fordham wasn’t afraid of any horse. He sprang right in under the pawing hoofs, and seized the dangling reins. His hold was secure; his wrist firm. At his first jerk Poke’s head came down and, naturally, the horse’s forefeet as well.

The instant the hoofs struck the ground, and before Poke could begin any further display of antics, Dig was in the saddle. Chet, looking back over his shoulder as Hero set the pace up the mountain, saw that his chum was securely astride Poke. Give Dig both feet in the stirrups, and no horse living could dismount him. He rode as though he were a part of the horse.

Digby and Poke were not always in accord, but Poke was tireless and carried the heavy boy as though he were a feather-weight. Poke could go without food and water much longer than most mountain-bred mustangs. Dig declared there must be a strain of camel in him. But there was not an attractive thing about the brute, either in temper or appearance.

In a minute he was neck and neck with Hero, and both horses were carrying their young masters up the slope at a fast pace. Dig grumbled:

“This old rascal always cuts up when I want him in a hurry. I’m going to trade him off for a horned toad, and then use the toad for a currycomb. Your Hero is a regular lady’s horse ’side o’ him.”

“You know you wouldn’t take any money for old Poke,” returned Chet, reaching out and smiting the black across his ugly nose with his own palm. “Why do you give him a chance to get away from you?”