Billie, even while galloping at full speed, began a long-distance fire upon the enemy. One of the Mescaleros had caught the bridle of the young woman's horse and was stopping the animal. It looked for a moment as if the raiders were going to make a stand, but presently their purpose became clear to those in pursuit. The one that Billie had picked for a renegade white dropped from the horse upon which he was riding double and swung up behind the captive. The huddle of men and ponies opened up and was in motion again toward the head of the valley.

But though the transfer had been rapid, it had taken time. The pursuers, thundering across the valley, had gained fast. Rifles barked back and forth angrily.

The Indians swerved sharply to the left for the mouth of a cañon. Here they pulled up to check the cowboys, who slid from their saddles to use their ponies for protection.

"That gorge to the right is called Escondido Cañon," explained Prince. "We combed it for cattle last year. About three miles up it runs into the one where the 'Paches are! Don't remember the name of that one."

"I'll give it a new name," answered the boy. He raised his rifle, rested it across the back of his pony, and took careful aim. An Indian plunged from his horse. "Shoot-a-Buck Cañon—how'll that do for a name?" inquired Thursday with a grin.

Prince let out a whoop. "You got him right. He'll never smile again.
Shoot-a-Buck Cañon goes."

The Indians evidently held a hurried consultation and changed their minds about holding the gorge against such deadly shooting as this.

"They're gun-shy," announced Thursday. "They don't like the way we fog 'em and they're goin' to hit the trail, Billie."

After one more shot Prince made the mistake of leaving the shelter of his horse too soon. He swung astride and found the stirrup. A puff of smoke came from the entrance to the gulch. Billie turned to his friend with a puzzled, sickly smile on his face. "They got me, kid."

"Bad?"