The wind died down suddenly. The sun, just above the horizon, glowed like a disk of burnished copper. The wagon ruts were filled with fine sand. Waring read the trail. The buckboard had traveled briskly. It had stopped at the line. The tracks of the fretting ponies showed that clearly. Alongside the tracks of the ponies were the half-hidden tracks of a single horse. Waring glanced back at the sun, and put Dex to a lope. He swung into the main road, his gaze following the half-obliterated trail of the single horseman. Suddenly he reined up. The horseman had angled away from the road and had ridden north across the open country. He had not gone to Stacey. Waring knew that the horseman had been riding hard. Straight north from where Waring had stopped was the Starr Ranch. He rode on, his heart heavy with a black premonition. The glowing copper disk was now half-hidden by the western hills. At the brink of the arroyo he dismounted. He could see nothing distinctly in the gloom of its depths. Stooping, he noted the wagon tracks as he worked on down. His foot struck against something hard. He fumbled and picked Pat's gun from the sand. Every chamber was loaded. "He didn't have a chance." Waring was startled by his own voice. He thrust the gun in his waistband. The twilight deepened rapidly. Rocks and ridges in the arroyo assumed peculiar shapes like those of men crouching; men prone; men with heads up, listening, watching, waiting. Yet Waring's instinct for hidden danger told him that there was no living thing in the arroyo--unless--Suddenly he sprang forward and dropped to his knees beside a huddled shape near a boulder. "Pat!" he whispered. Then he knew; saw it all as clearly as though he had witnessed it--the ambushment in the blinding sandstorm; the terror-stricken Waco; the frightened ponies; the lunging and swaying buckboard. And Pat, left for dead, but who had dragged himself from the roadway in dumb agony. The dole of light from the sinking sun was gone. Waring's hands came away from the opened shirt shudderingly. He wiped his hands on the sand, and, rising, ran back to Dex. He returned with a whiskey flask. Pat was of tough fiber and tremendous vitality. If the spark were still unquenched, if it could be called back even for a breath, that which Waring knew, yet wanted to confirm beyond all doubt, might be given in a word. He raised Pat's head, and barely tilted the flask. The spirit of the mortally stricken man, perchance loath to leave such a brave hermitage, winged slowly back from the far shore of dreams. In the black pit of the arroyo, where death crouched, waiting, life flamed for an instant. Waring felt the limp body stir. He took Pat's big, bony hand in his. "Pat!" he whispered. A word breathed heavily from the motionless lips. "You, Jim?" "Yes! For God's sake, Pat, who did this thing?" "Brewster--Bob. Letter--in my coat." "I'll get _him_!" said Waring.