But a change was coming over the man’s face. The color was slowly going out of it, the lips were loosening as his jaws dropped, his body began to sag, and his eyes began to widen with fear, stark and naked. At length, the rider now watching him with a gaze in which there began to glow recognition and contempt, the man dropped his hands to his sides and leaned against the rock.

“‘Drag’ Harlan!” he muttered hoarsely.

The rider watched, his eyes glittering coldly, his lips twisting in a crooked sneer. Amusement was his dominating emotion, but there was hate in his gaze, mingling with a malignant joy and triumph. The pistols in his hands became steady as his wrist muscles stiffened; and he watched the two men warily, apparently looking straight at the standing man, but seeing the sitting man also.

And now a silence fell—a strained, premonitory silence that had in it a hint of imminent tragedy. The sitting man stiffened, divining the promise of violence; the standing man shrank back a little and looked downward at the pistol in his right hand.

The rider saw the glance and laughed lowly.

“Keep her right where she is, Dolver,” he warned. “You lift her one little wee lift, an’ I bore you plumb in the brain-box. Sort of flabbergasted, eh? Didn’t expect to run into me again so soon?”

He laughed as the other cringed, his face dead white, his eyes fixed on the rider with a sort of dread fascination.

“Dolver, didn’t you know when you got my little partner, Davey Langan, that I’d be comin’ for you?” said the rider in a slow, drawling whisper. “In the back you got him, not givin’ him a chance. You’re gettin’ yours now. I’m givin’ you a chance to take it like a man—standin’, with your face to me. Lift her now—damn you!”

There was no change in his expression as he watched the man he had called Dolver. There came no change in the cold, steady gleam of his eyes as he saw the man stiffen and swing the muzzle of his pistol upward with a quick, jerky motion. But he sneered as with the movement he sent a bullet into the man’s chest; his lips curving with slight irony when Dolver’s gun went off, the bullet throwing up sand at Purgatory’s forehoofs.

His eyes grew hard as he saw Dolver stagger, drop his pistol, and clutch at his chest; and he watched with seeming indifference as the man slowly sank to his knees and stretched out, face down, in the dust at the base of the rock.