"Never mind who we are," interrupted Lord Hastings. "Enough for you to know that you almost spoiled everything."

"What's that?" demanded Davis. "I almost spoiled everything? Me?"

"Yes, you," returned Lord Hastings quietly. "You and the Baron Blosberg, with your impatience. I don't suppose you know that we carry numbers, eh?"

"I didn't know you did," replied Davis. "These other two here," indicating Jack and Frank, "I surmised did, or else I was fooled. But the last time I saw you you wore a British uniform and seemed to be perfectly at home."

"Fortunately for the rest of you," commented Lord Hastings dryly. "Otherwise none of you would be here now."

Davis was apparently convinced.

"And did you have success?" he asked. "Have you solved the mystery of the——"

"Vanishing submarines?" interrupted Lord Hastings. "Yes. We have solved it."

Von Rosten sprang to his feet.

"Is it true?" he exclaimed eagerly. "The mystery has been solved?"