"Oh," he said, "that's an old dodge. Did he tell you what to do?"
"No."
"He left it to me, I suppose. I always had to do it."
"What?"
"You've got to take the hall doormat and get up to the top of the house; there's a trapdoor at the top—get out of that, and put the doormat on the top of the chimney. I'll show you."
"Is that what he calls stopping the chimney?"
"If that won't do it, I want to know what will," replied Bobsey.
"That settles it," said Tommy. "I want to do all I can to please them, as they were kind enough to take me in out of the snow."
"Of course; you're tender hearted. Come along."
Tommy followed Bobsey, who pointed to a heavy mat in the hall, which Tommy slung over his shoulder, and they proceeded to the top of the house, where a step-ladder gave egress to the roof through a trapdoor, which was easily opened.