“Too late—Pudge is on the way,” remarked Billy. “Let’s go up and take a peep around once more to see that everything is in apple-pie shape—each wire-stay keyed up to the right tune for efficiency, the motors ready to do business, the gas pump lubricated, and, in fact, our machine fit to toe the scratch as if there were a race on.”

Once they were inside the hangar, Frank fastened the door with a bar that had been arranged for just such a purpose. Then, turning on a flood of light from an acetylene gas battery, they examined every part of the big seaplane. It had something of the appearance of a gigantic sleeping bat as it lay there motionless, but with all the attributes of tremendous power for skimming along on the surface of the water or soaring among the clouds.

“In perfect condition, as far as I can make out!” remarked Frank, after they had completed this careful survey.

“Yes,” added the other, with a glow of excusable enthusiasm on his face, “and if there was any necessity for doing it we could be off with a minute’s notice.”

“I took pains to make sure that there was a clear and uninterrupted stretch of water in front of our hangar,” said Frank. “No vessels are allowed to anchor on this side of the harbor, though there are many transports from Great Britain across the way that have brought men and war material and stores over.”

“Oughtn’t Pudge be about due by now, Frank? It’s pitch dark outside, and I should think a full hour must have crept by since he left us?”

“I was thinking of that myself, Billy. Still, we must remember that our chum is a bit slow on his legs, compared with the way you and I get over the ground. Besides, he may have been delayed at the store where he expects to get the new padlock.”

“Yes, I hadn’t thought of that,” admitted Billy. “But we might use the ’phone we have installed, and find out if he’s started back. It would make our minds a little more easy, you know.”

“Just as you say, Billy. And suppose you call them up while I do something I want to alter here—nothing of consequence, of course, but the change would strike my eye better.”

“All right, Frank.” With which remark Billy turned to one end of the hangar close by, where a telephone apparatus could be seen attached to the wooden wall.