“When I get hold, let ’em jump quick.” He dropped between the horses to the pole, and clutching the harness, got quickly out to the end. He was bending to catch the evener when a forward wheel struck a rut, and the long tongue snapped him viciously into the air.

He caught the hames of the nigh horse, and saved himself. Hanging to the hames, he swung back, lay out along the tongue, and reached again for the evener.

Jonnasen was watching, and as the boy laid his hand upon the big hook, he loosed the reins, the horses lunged, and the long, heavy bar was unhooked almost of itself.

Like a flash the boy straightened and swung the lash about the horses ahead, throwing himself an instant later upon the back of the horse he was holding.

The loosened teams were barely dragged to the side as the pole-team went by on the gallop, with its forty-ton stone.

Jonnasen had the horses under perfect control. He could guide them straight ahead. But the mighty stone was gathering momentum with every leap of the team, and powerful as they were Jonnasen began to realize that they would never be able to check or turn the downward plunge at the curve on the edge of the quarry.

Then he saw that young Gustavesen was making no attempt to fling himself from the galloping horse.

“Jump!” he shouted. “Jump, quick!”

Havelok turned. “I can’t jump!” he called back. “My leg! Tend your team! I’m safe here!”