"I reckon it's a Yaqui hunting-ground," replied Lash. "That trail we hit must be hundreds of years old. It's worn deep and smooth in iron lava."

"Well, all I got to say is--Beldin' was shore right about the Indian. An' I can see Rojas's finish somewhere up along that awful hell-hole."

Camp was made on a level spot. Yaqui took the horses to water, and then turned them loose in the arroyo. It was a tired and somber group that sat down to eat. The strain of suspense equaled the wearing effects of the long ride. Mercedes was calm, but her great dark eyes burned in her white face. Yaqui watched her. The others looked at her with unspoken pride. Presently Thorne wrapped her in his blankets, and she seemed to fall asleep at once. Twilight deepened. The campfire blazed brighter. A cool wind played with Mercedes's black hair, waving strands across her brow.

Little of Yaqui's purpose or plan could be elicited from him. But the look of him was enough to satisfy even Thorne. He leaned against a pile of wood, which he had collected, and his gloomy gaze pierced the campfire, and at long intervals strayed over the motionless form of the Spanish girl.

The rangers and Thorne, however, talked in low tones. It was absolutely impossible for Rojas and his men to reach the waterhole before noon of the next day. And long before that time the fugitives would have decided on a plan of defense. What that defense would be, and where it would be made, were matters over which the men considered gravely. Ladd averred the Yaqui would put them into an impregnable position, that at the same time would prove a death-trap for their pursuers. They exhausted every possibility, and then, tired as they were, still kept on talking.

"What stuns me is that Rojas stuck to our trail," said Thorne, his lined and haggard face expressive of dark passion. "He has followed us into this fearful desert. He'll lose men, horses, perhaps his life. He's only a bandit, and he stands to win no gold. If he ever gets out of here it 'll be by herculean labor and by terrible hardship. All for a poor little helpless woman--just a woman! My God, I can't understand it."

"Shore--just a woman," replied Ladd, solemnly nodding his head.

Then there was a long silence during which the men gazed into the fire. Each, perhaps, had some vague conception of the enormity of Rojas's love or hate--some faint and amazing glimpse of the gulf of human passion. Those were cold, hard, grim faces upon which the light flickered.