"Kid us along, of course!" Dave cried, warming up to his subject. "Pull the old razzle-dazzle on us, so that we wouldn't know where we were from a three dollar hat. Don't you get me?"

"I was quite a while in the States," Colonel Trevor said with a chuckle, "but I'm afraid I didn't quite pick up all of your American slang expressions. What do you mean by what you've just said, Dawson?"

Dave grinned, and blushed slightly.

"Sorry, sir," he said. "I sort of shoved into high gear without realizing it. I mean, I ... well, anyway, I'm sure Jerry knew what we were up to all the time, so he purposely made things all the more confusing. Matter of fact, I wouldn't be at all surprised but what he kidded us along step by step hoping that we would send over that night patrol."

"What?" Group Captain Ball exploded in a loud voice. "Led us along? What in the world do you mean by that? I think you've gone balmy, my lad. Of all the rot!"

"Maybe so, sir," Dave said evenly and held up two fingers. "But there are two things we don't know. One, what the new Nazi secret weapon is all about. And, two, what happened to that night picture patrol. Correct, sir?"

"Unfortunately, yes," the other grunted backing down a little. "But what's that got to do with what the Nazis did? I mean, all this kidding along, as you express it."

"You're pinning me down kind of tight, sir," Dave said with a half grin. "That part is just a hunch that sticks in my craw. I mean, I've got the hunch that there was one thing the Nazis didn't know. For certain, I mean."

Group Captain Ball groaned and threw up his hands.

"My word!" he cried. "More blasted riddles! Come to the point, Dawson. What in the world do you mean?"