"Oh, say, thet thar won't do—I tells yer it won't, fer we know er blamed sight better! Rodeo, lying is dangerous with me 'round."

"Señor, I do not lie; I tell you the truth. One month ago Pacheco was the leader of the band; now he is dead, and another is in his place. This other killed him in a battle, and by that he won the right to be leader of the band. He has taken my brother's name, and he calls himself Pacheco. Señors, I swear to you I speak the truth—I swear by all the saints! My brother is dead, and there is an impostor in his place."

Frank was impressed, and his hand fell on Bushnell's arm.

"I believe the fellow really speaks the truth," he said. "He seems sincere, and his eyes are square and steady."

"Yer can't tell about ther skunks," muttered the Westerner; "but still this one does seem ter be layin' a straight trail."

"I have taken my oath," continued the half-blood, a red light in his dark eyes—"I have sworn to kill the murderer of my brother, and I will keep the oath. That's why I am here. I have been watching the band for two weeks; I know every move they will make. I know when you leave Huejugilla el Alto, and I know they will follow. I make sure of that, and then, with my heart full of joy, I ride fast in advance. At last—at last they go to my country in the mountains! My people are there—my other brothers, my cousins, my relatives. They will all stand by me, and they will be ready to avenge Pacheco. The wrath of my people shall fall on the head of the impostor! You wonder why I warn you? I will explain. You are bound far in the mountains, and the false Pacheco will follow. If you are captured, he may turn back. I want him to follow you—I want you to lead him into the snare. That is why I am here, and that is why I have warned you, señors. It is done, and now I will go."

He arose to his feet, heedless of Bushnell's command to "keep still," and strode toward the horses. They saw an extra animal was there, and, in a moment, he had flung himself on the creature's back.

"Buenos dias, señores."

A clatter of hoofs, the flutter of a poncho, and a crimson serape, and Rodeo's horse was galloping up the ravine that still led deeper into the mountains. Man and horse soon vanished from view.