Martin, rolled up in his bedroll on the floor of the empty hayloft, woke with a start.

"Say, Howe!" Tom Randolph, who lay next him, was pressing his hand. "I think I heard a shell go over."

As he spoke there came a shrill, loudening whine, and an explosion that shook the barn. A little dirt fell down on Martin's face.

"Say, fellers, that was damn near," came a voice from the floor of the barn.

"We'd better go over to the quarry."

"Oh, hell, I was sound asleep!"

A vicious shriek overhead and a shaking snort of explosion.

"Gee, that was in the house behind us...."

"I smell gas."

"Ye damn fool, it's carbide."