“That’ll be our chance to return their hospitality,” Harry answered. “They’ll be the guests of the Green Mountain Boys, and Mr. Wade will have to go away back and sit quietly down.”

“Oh, it’ll be great!” said Gordon, with a positive groan of delight. “I wish it was the last two weeks of August now!”

“If we do it.”

“If we do it? Of course, we’ll do it!”

It was ten o’clock or after when Gordon’s roaming vision was arrested by a thin, gray line rising out of the black woods far to the north. Harry got out his compass and found that it was a little west of north and, as nearly as he could judge, five or six miles distant. He studied it closely.

“That’s it, sure,” said Gordon.

“You might run up there and see,” Harry answered dryly. “I’ll wait till you get back.” He got out his map and tried to determine the locality. “Port Henry is eight or nine miles north of here, see?” he said. “It may possibly come from there, but it’s not coming out of a chimney, I’m almost certain. Of course, there’s no telling how far north it is, but it’s probably this side of the high land which begins with Bulwagga Mountain. I dare say it’s between Bulwagga and the shore. There’s a stream there, too—Grove Brook—and that would attract them.” He studied it long and carefully. “I don’t see any suggestion of lightness below it, do you? It must be at least five miles off.”

“Harry, I have an idea!”

“Good for you.”

“You know Red Deer’s rule—eleven o’clock sharp. We all agreed to it. You remember what he said about not leaving any fire burning? Well, now, if they smother that at eleven o’clock—I can just see Conway jumping up like a little tin soldier and piling on green stuff as soon as Red Deer gives the word. You’ll see, Harry, something will happen to that at eleven o’clock!”