"Don't underestimate the Diver," warned Lieutenant Scott. "She is a peach of a submarine, and Mr. Arthur Moore knows how to operate her. She is almost the latest thing in submarines."
"Why didn't the Government buy her, then?" demanded Jack.
"Principally because she was withdrawn from the market," was the reply.
"I begin to understand," Ned said.
"Then that son of Captain Moore is after the gold?" asked Jack.
"That is what we suspect."
"Well," Frank said, then, "it wouldn't be any fun to go after the old wreck if all was clear sailing."
"Right you are!" cried Jimmie.
"But how did they get the Diver here so quickly?" asked Ned.
"The same way I got the Sea Lion here," was the Lieutenant's reply. "They engaged a special train, took the boat to pieces as far as practicable and sent her over."