“Not alone. Billy was with me.” Briefly she gave him an account of her day, beginning with the conversation in her father’s office. “Brad, I’m convinced Punaro is smuggling something out of the hospital with the garbage. Who knows but what he’s the one keeping these U-boats supplied with fresh bread, green vegetables and stuff like that.”

“They’re getting it from somewhere, and that’s a certainty,” stated Brad. He was silent a moment, then said anxiously, “But Kitty, you shouldn’t have gone off there in the marshes alone.”

“Billy was with me. You forget I was practically brought up in a boat, Brad. I’m never afraid on the water.”

“But it’s dangerous now. Promise me, Kit, you won’t ever go off like that alone again.”

She laughed at his fears, but her pulse beat a little faster because of his solicitude.

“I may have to sometime, Brad. But I’ll promise to be more careful.”

“Why, anything could have happened to you. That man could have fired from the mangroves, and nobody would ever have known what had become of you two.”

“But I had to know where that barge took the stuff, what the general situation was. I didn’t even think about being nervous—that is, not till Billy told me about seeing the man through our glasses.”

They were silent while they finished their supper, then Kitty said, “Brad, I’ve always heard—that spies come ashore from the subs in rubber boats.”

“So they do.”