"Hear what, sir?" asked the lad.
Ranworth was almost the last of the injured men to be brought in by means of the sleigh. He was still incapable of moving, and spent the whole of his time lying in the shelter.
"It's a ship's siren," declared Ranworth with conviction.
Leslie listened intently, but could not agree with his patient's declaration.
"I'll go outside and listen, sir," he said.
"Guy," he whispered, as he joined his chum, who was busily engaged in teaching the cub to perform simple tricks, "Mr. Ranworth says he can hear a steamer's siren. Can you?"
Guy listened intently.
"Not a sound," he replied.
Somewhat disheartened, Leslie returned to the hut, and in answer to Ranworth's mute inquiry he shook his head.
"But I heard it distinctly while you were outside," he maintained. "Ask the men if they heard anything."