Creeping behind a neighboring tree the generous trunk of which offered him the necessary asylum, Jack watched his chance. He waited until the man stood up to rest, with the pickax held over his shoulder, and the sun well on his face. Then a tiny click announced to Toby that the thing had been done. He was keeping his eyes glued on the man; but as several crows were holding a noisy confab not far away, and a squirrel had taken to barking at the intruder with the digging tool, such a slight sound as the clicking of the camera apparently passed unnoticed. The stranger seemed to be more or less excited. After mopping his perspiring forehead he once more commenced digging here and there in a most tantalizing fashion. Toby could not comprehend what it could mean. Was there gold or some other precious deposit to be found up here among these hills, and might this strange man be an old prospector from the West who had had long experience in searching for mineral lodes? But then such things were seldom discovered so near the top of the ground, Toby recollected. He wished the man would go away so he could speak to Jack, and ask him what he thought; because the more he considered the matter the greater became his conviction that Jack must surely know. Now the man seemed to have satisfied himself, for he again shouldered the pick, and started to leave the spot. Toby was glad to notice that he had turned aside and consequently there would be no danger of his coming upon them in their hiding-place. He waved a farewell after the other, boylike. "Goodbye, Mister Man," Jack heard him whisper, exultantly; "come again when you can't stay so long. Your room is better appreciated than your company. Who are you, anyway; and what're you muddling about around here, I'd like to know." After the man had been swallowed up in the depths of the woods Jack made the other lie quiet for something like five minutes. This was to make doubly sure the stranger did not turn on his tracks, and come back again. It was hard for Jack to hold in, because he was quivering with eagerness to investigate, and see if he could find out what had interested the other so much. "Guess he's gone for keeps, Jack," suggested the eager Toby, fretting like a hound held in the leash. "Yes, it looks that way," returned the other, commencing to get upon his feet, "and I suppose we'd be safe in going on our way again." "But, Jack, don't you mean to take a peep over there where that chap was digging so wildly to learn what he was up to?" demanded Toby. Jack looked at him as though trying to make up his mind. "Well, it has to come some time," he remarked, as if to himself, "and I suppose it's hardly right to keep you in the dark much longer, now that you've seen as much as you have. So come along, Toby, and we'll investigate."