Few sounds are so thrillingly terrible as the dying scream of a mangled horse, and yet this was far more awful. Only the throat of a human being could emit that chilling cry. It rose in shrill crescendo, to die away in a sobbing wail that lifted the hair on the listener's head. Again and again it came—a moan born of the frightful torture of mortal agony.

Giving his mount a touch of spur, the horseman turned the animal westward toward the Llano Estacado. So horrible were the sounds that he had paled under his tan. But he headed directly toward the direction of the cries. He knew that some human being was suffering frightful pain.

Crossing a sun-baked gully, he climbed upward and onto a flat-topped, miniature butte. Here he saw a spectacle that literally froze him with horror.

Although accustomed to a hundred gruesome sights in that savage land, he had never seen one like this. Staked on the ground, feet and arms wide-stretched, and securely bound, was a man. Or rather, it was a thing that had once been a man. It was a torture that even the diabolical mind of an Indian could not have invented. It was the insane creation of another race—the work of a madman.

For the suffering wretch had been left on his back, face up to the sun, with his eyelids removed!

Ants crawled over the sufferer, apparently believing him dead. Flies buzzed, and a raven flapped away, beating the air with its startled wings. The horseman dismounted, took his water bag from his horse, and approached the tortured man.

The moaning man on the ground did not see him, for his eyes were shriveled. He was blind.

The youth with the water bag tried to speak, but at first words failed to come. The sight was too ghastly.

"Heah's watah," he muttered finally. "Just—just try and stand the pain fo' a little longah. I'll do all I can fo' yo'."

He held the water bag at the swollen, blackened lips. Then he poured a generous portion of the contents over the shriveled eyes and skeletonlike face.