Ab, confident that he had nothing to fear from the boys, had taken his station on a large boulder, from which position he was giving his orders to the Pony Riders. Tad, peering from behind the rock where he had taken refuge, saw an evil face, topped by a weather-worn sombrero, and, beyoud it, the figures of four other men whose faces he was unable to make out.

"I say, will ye git?"

"No!" shouted Tad, his face flushing, as all the old fighting spirit in him came to the surface.

"Then, take the consequences!"

Ab Durkin raised his revolver, peering from rock to rock, not certain now as to the exact location of the boys. He seemed ready to fire the instant he made out the mark he was seeking.

Tad Butler never had been more cool in his life, and a strange sense of elation possessed him.

Motioning to the boys to lie low, Tad fitted an arrow to his bow, after which he waited a few seconds, keenly watching the enemy and measuring the distance to him, with critical eyes.

All at once the boy's right arm drew back. There followed a sharp twang.

"Ouch!"

The mountaineer leaped straight up into the air, which action was followed by two shots in quick succession, as both of the man's revolvers were accidentally discharged, the bullets burying themselves harmlessly in the ground in front of him.