He laid the broad hand on Young's shoulder. "Doctor, you must do more than you can; you must accomplish the impossible; I tell you, it is impossible for this man to die; he must live!"

He turned to Glendin.

"I suppose you want the details of what happened here?"

"Right."

"Follow me. Doctor, I'll be gone only a moment."

He led the way into an adjoining room, and lighted a lamp. The sudden flare cast deep shadows on the face leaning above, and Glendin started. For the moment it seemed to him that he was seeing a face which had looked on hell and lived to speak of it.

"Mr. Drew," he said, "you'd better hit the hay yourself; you look pretty badly done up."

The other looked up with a singular smile, clenching and unclenching his fingers as if he strove to relax muscles which had been tense for hours.

"Glendin, the surface of my strength has not been scratched; I could keep going every hour for ten days if it would save the life of the poor fellow who lies in there."

He took a long breath.