Neither Frank nor Wade spoke. There was silence for a moment. Then Poole said, in a metallic voice:

“If you have a submarine boat it will be of more service to me than to you. How will you trade it for this yacht? Name your price!”

Frank met the other’s gaze steadily, and replied:

“I do not care to exchange.”

Poole’s face grew livid.

His hand instinctively went to his belt. He said:

“Oh, I can see your game. You will easily recover the treasure yourself of which I have told you. But I may as well tell you now that game will not work. You cannot leave this cabin alive unless you come to terms!”

It was a thrilling moment.

Wade’s face paled.

But Frank was as cool as an icicle.