The cab roof was smoking, the cab floor was paved with burning cinders, and some oil waste was blazing back among the coal at the edge of the tender.

Ahead, the top and sides of the powder car were sheeted with flames, which the swift forward movement drove back in shroud-like form.

On the end of the car facing, the grim, black warning: "Powder! Danger!" stared squarely and menacingly into the eye of the pilot front.

Griscom struggled to his feet. He fell against Ralph. The latter thought he was delirious, for his lips were moving, and his tortured face working spasmodically. Finally he said weakly: "Put my hands on the gearing. We're out of it?"

"Yes, but the car is blazing."

"What's ahead?"

"Dead tracks for nearly a thousand feet."

"And the dump pit beyond?"

"It looks so," said Ralph, leaning from the window and glancing ahead anxiously. "Yes, it's rusted rails clear up to what looks like a slough hole, and no buildings beyond."

He held his breath as Griscom pulled the momentum up another notch. This last effort palsied the engineer, his fingers relaxed, and he slipped again to the floor, nerveless but writhing.