"Turn them off, and go and sit down in that chair at the desk." Again Jason obeyed, stumbling in the darkness as he returned from the electric-light switch at the farther end of the room.

He sat down in the chair.
Larry the Bat stepped out from behind the curtain.

"I came for that letter, Jason," he explained quietly.

"I am going out again now.

I may be back to-morrow; I may not be back for a week.