"Liar!" Featherstone snapped, but softened it with a smile and a look that spoke volumes. "Now, get back there and into some dry things. Both of you."

"We're gone," Dave said and pushed Freddy Farmer ahead of him through the compartment door.

A little over an hour later the huge Catalina flying boat slid down toward a landing in the mooring basin at Plymouth Base. Perched on an empty bomb rack amidships Dave and Freddy watched the basin surface rise up toward them. During the seventy minute flight they had not spoken more than a dozen words to each other. They hadn't for the simple reason there wasn't much to say. Both realized that they could hash over their close to death adventure until the cows came home, and still be no nearer to a correct solution. Then, too, the feeling of depression that had come with failure made the speaking of words seem futile.

True, it was not their fault that they had failed. They had carried out their orders to the letter. They had even gone beyond orders and attempted to crash into the lone U-boat and disable it at the cost of their own lives. Yet, in spite of all that they felt depressed; felt that they had slipped up somewhere and brought failure to what should have been a successful mission.

Such thoughts were rambling through Dave's brain when Freddy reached out and placed a hand on his knee.

"Chin up, Dave," the English youth said with a smile. "I've been thinking."

"Well, I haven't exactly been asleep," Dave grunted. "But what has your brain been chewing over, pal?"

"The whole crazy business," Freddy replied with a heavy scowl. "I've been thinking that all this started back at Adastral House. I mean, the business was doomed to failure long before we opened our sealed orders. In fact I'm sure of it. Because, why should that Fairey Swordfish suddenly start popping up into our lives?"

"Okay, I'll bite," Dave said. "Why? But speak words I can understand this time. That last has me all balled up."

"Well, I figure it this way," Freddy said after a moment's hesitation. "Some one knew, or found out that we weren't just a couple of replacements being sent to Seventy-Four. Some one also knew what our sealed orders were going to be. So when we took off in the Fulmar that some one tagged after us in that Swordfish. Being in a Seventy-Four plane, he knew that he could get in close and smack us down without much danger to himself. And...."