The captain was just settling back for an undisturbed snooze when suddenly he leaped from his berth, his face pale and his eyes starting. The mate also leaped to his feet and demanded:
“What is it, captain?”
For a moment the captain could not speak. He was trembling like an aspen leaf.
“Tell me, captain, what’s the matter.”
“Did you hear anything?”
“No.”
“I did.”
“What did you hear?”
“A groan.”
“Where?”