“You are sure?”

“I am.”

“I’ll sleep on the floor—you sleep in the berth.”

“All right.”

The mate got in the berth, but in less than a second he leaped forth with a yell, and the captain, who had stretched upon the floor, sprang to his feet.

“Well, mate?”

“Captain, I heard it.”

“What did you hear?”

“A voice.”

“You heard a voice?”