"I shall look for you two at the hotel in one hour," declared the German, impressively.

"My friend, Mr. Somers, has already told you that you'll be using your eyesight to poor advantage, then," Hal answered.

"What do you mean?"

"Why, I mean, Professor, that you can't possibly persuade us to go to Germany and tell your people anything that we know about the Pollard submarine boats, or any other type."

"But you shall be well paid!"

"Professor, what would be your price for selling out your country to the
United States?" asked Hal, gazing fixedly at the German.

"You insult me!" cried the German, his face growing red. "I am a patriot."

"Yet, you insult us by thinking that we would sell our country," went on Hal, coolly.

"Are you two going to be as big fools as your captain?" demanded Herr
Professor Radberg, almost incredulously.

"Bigger!" promised Eph, with a grin.