“What are you looking for?”

“Oh! It’s you, Jimmie Nightingale!” she exclaimed.

“Sure!” Jimmie grinned. “But if it’s your radar set you’re looking for, you might as well forget it. All you’ll find won’t help you much.”

“No. It won’t help me.” Her voice dropped to a whisper. He was very near her now. “But it might help someone else a lot.”

“What do you mean?”

“You know about radar, don’t you?”

“A little.”

“It’s a marvelous invention. The Navy has used it to locate enemy boats thirty miles away, at night, in a thick fog. Yes, and has sent the boats to the bottom before the Japs knew they were anywhere near.”

“Yes, I know,” said Jimmie. “And I’ve been told that the fellow who caught the first hint of the Jap planes approaching Pearl Harbor was experimenting with radar. And so, what about it?”

“Lots about it,” Gale whispered. “Our enemies have radar sets of a sort, but not nearly as good as ours. We have secrets in our radar sets that they don’t know about. You’d find them, the three most important ones, done up in three gadgets,—none of them very large. See this?” She held up the things she had picked up only a short time before. “That’s one of them. That bomb tore it from my radar cabinet. It’s almost perfect still, for all that.”