The time was noted.
"Now, show us anything that you wish," suggested Commander Ennerling.
Captain Jack looked significantly at Messrs. Pollard and Farnum. Both nodded.
"Then, sir," rejoined Captain Benson, "if don't mind, we'll run back to
Dunhaven, and show you a specialty of ours in the harbor at Dunhaven."
"Very good," agreed the president of the board.
Not until they were in sight of the little harbor was the manhole opened. Now, some of the party stepped out onto the platform deck and remained there a few minutes.
"I'll have to ask you to come inside, now, gentlemen," requested Jack Benson, courteously, after making an unobserved signal to someone on shore. "We're going down to the bottom of the harbor."
As soon as the "Pollard" had sunk, and rested on bottom, Jacob Farnum invited the members of the board into one of the staterooms aft.
"For just a few minutes, gentlemen," he explained, "we want to keep you from seeing something."
As soon as the visitors were out of the way, Captain Jack sprang forward to the torpedo tube. Hal Hastings, stripping off his outer clothing, stood forth in his bathing suit.