“I thought we were going to keep on going eastward,” said Olesen a few minutes later to Mr. Brooks.

“Captain’s orders,” was the brief reply.

If the head diver was suspicious, he gave no sign. However, a little later he went below and locked himself in his stateroom.

“He’s going to take another look at the demijohn to see if it’s still safe,” remarked Jack.

Evidently Leif Olesen did more than look at the demijohn. When he came on deck again his face was red and he showed unmistakable signs of having been drinking.

“Looks to me as if this treasure hunt would amount to nothing,” he grumbled. “I’m sorry I came on this trip. It’s terribly hot down here.”

“Well, any time you wish to quit, say so and I’ll put you on shore,” answered Captain Corning sharply.

He apparently paid no more attention to the head diver, and the boys saw Olesen and Amend consult together. Then, when the ship sailed close to the spot where they imagined the empty demijohn had been hauled up, Fred and Andy caught sight of Amend as he dropped something overboard. A little later they saw Olesen throw something into the waters of the Gulf.

“I wonder what that was!” exclaimed Andy. “Here, give me those glasses, quick!”