"Have you any idea what it means?"

"Yes, I heard something about it when I was looking up the history of Dismal Mountain before I had any idea we'd ever come here. The castle is an old stone building, built to represent its name. It was started by a rich man who had an idea he'd like to live somewhat after the English style. But either he died or his money gave out, for the castle was never quite finished. It's an old, rambling pile of stone near the top of this mountain of mystery."

"Anybody live in it?"

"That I don't know. Probably it's deserted like the old house, but it may be the hang-out of some of the gangs infesting the mountain, and it's very evident that our car has fallen into the hands of one of these same gangs."

"Yes," agreed Tom. "But they won't have my machine long!"

"What are you going to do?"

"Get it back, Ned. There's only one man there now and we ought to be able to easily handle him."

"He's likely to be armed. They both are I should say, and there is no telling when Mr. Big may come back."

"I aim to do up Mr. Small before Mr. Big shows up," replied Tom grimly. "As for being armed, we've got our own automatics."

"That's so!" agreed Ned, who, for the moment, had forgotten that before getting out of the House on Wheels to go to the old house he and his chum had put the weapons in their pockets. "Well, lead on, Tom."