"We won't try to swim until we have to," he said. "Now, let's take an account of stock, and see if we have any means of getting out of this prison."

CHAPTER XXIII

ACROSS THE SEA

With one accord the hands of the captives sought their pockets. Probably the first thought of each one was a knife—a pocket knife. But blank looks succeeded their first hopeful ones, for the hands came out empty.

"Not a thing!" exclaimed Mr. Damon. "Not a blessed thing! They have even taken my keys and—my fountain pen!"

"I guess they searched us all while they were struggling with us, tying us up," suggested Ned. "I had a knife with a big, strong blade, but it's gone."

"So is mine," echoed Tom.

"And I haven't even a screwdriver, or a pocket-wrench," declared the engineer, "though I had both."

"They evidently knew what they were doing," said Lieutenant Marbury. "I don't usually carry a revolver, but of late I have had a small automatic in my pocket. That's gone, too."