"Anyone taking my name in vain?" demanded the machinist, smiling as he
put in an appearance at that moment.

"We're trying to see," Eph explained, "whether we can do any better
guessing than the Secret Service men as to the fellows who were kind
enough to lay that mine under us last night."

"Got it figured out?" asked the machinist, as he transferred, a generous
helping of bacon, eggs and fried potatoes, to his plate.

"For myself," put in Hal, "I'd suspect that fellow Gaston, in an instant,
if he had only been at liberty. That fellow has an eye that looks like
all the letters in the word 'r-e-v-e-n-g-e.'"

"That's so," nodded Jack, thoughtfully, as he ate. "But we happen to
know that Gaston is very safe under lock and key. By the way, fellows,
I don't suppose Mr. Farnum and Mr. Pollard have heard the news yet, or
they'd be out here on the double quick."

After breakfast Jack went ashore alone, to carry the exciting news to
his employers. He found Messrs. Farnum and Pollard in the breakfast
room at the Clayton. Both were astounded when they heard the news of
the night's doings.

"Who on earth could have put up such a job against the submarine?"
gasped David Pollard.

"I don't know, sir," Captain Jack replied. "But I've left Hal on
board, in command, and I mean to find out something about this business,