A red squirrel in a tree overhead, that had been observing all these doings with round-eyed wonder, began to chatter and scold. A little striped chipmunk sat up on a neighboring stump and took note.

"Nobody home, fellers," called out Toby, after he had apparently stared in through that opening for more than a full minute.

Some of the scouts looked relieved; others frowned as if disgusted. This sort of thing might be all very well, but it did not seem to be taking them any closer to the rescue of their comrade, or clearing up any of the dark fog of mystery that hung like a wet blanket between themselves and the solution.

Elmer immediately strode forward. By following the well-defined path he was able to find himself at what was plainly the rude door of the shack.

Upon this he knocked sharply. There came no answer, and even the keenest ears among the scouts failed to catch the slightest sound following this summons.

"Try it once more, Elmer," advised cautious Mark.

Again the tattoo sounded, but as before it produced no results. So Elmer opened the door, which he saw had been fashioned in the rudest way from boards, and hung upon strap hinges.

As he pushed the door aside, every scout held his breath and gripped his stick expectantly. But nothing happened. No string of rough men came bustling forth, demanding in coarse language what the boys meant by bothering them.

It looked as though Toby must have struck the right key when he so confidently declared there was nobody at home.

So Elmer entered, with some of the bolder among the scouts at his heels. The balance contented themselves in pressing around the door and window, and taking it out in looking.