Ralph hung on the engineer's words and hovered at his elbow.

"We had better get out of this, Mr. Griscom," he suggested.

The engineer made a rough, impatient gesture with his arm, and then pulled his young helper to the window.

"Look sharp!" he ordered,

"Yes, Mr. Griscom."

"My--my eyes are pretty bad. When the smoke lifts--what's beyond the car yonder?"

"I can't make out exactly, but I think a clear track."

"How's the furnace?"

"Rushing."

"All right. Now then, you jump off. I'm going to let her go."