"How they ever got all this stuff here without arousing the suspicion of the Canadian Government passes my comprehension," said Mr. Waterman.
Going outside, they noticed a path, and following it, if soon led them to the top of a mountain that was opposite to the one they had climbed but a few short days before. Sure enough, there was the wireless, hidden most cleverly by the trees and branches so that from the opposite hill; nothing out of the ordinary could be seen even with a glass.
"This is rather an old instrument," said Bob. "It is dated 1912."
"That may explain the whole matter," said Mr. Waterman. "It is well known that the Germans have a wonderful spy system. It is possible that all this may have been brought in here four or five years ago for this very purpose."
"I guess that that's the answer," replied Bob, "for it would be absolutely impossible for any party of men to get this stuff in here now."
On returning to the hut they took a good look around and found everything in the best of order. There were supplies of all kinds there except food.
"I guess that the Canadian Government got his mates all right, and that left him stranded here as far as grub was concerned. He had his nerve with him all right, for he was liable to be shot down at any time," said Mr. Waterman.
They were soon on their way back. When they came to the lake they found that the German's canoe was gone. Pierre was evidently right on his trail, for one of the two canoes they had brought along was also missing.
"I wonder if Jack has caught up with Pierre so soon," mused Mr. Waterman.
"It looks that way," replied Bob, "for otherwise he would probably have taken our canoe, knowing that we could get back to camp even without a canoe."