The place is haunted, sure. No other way to explain it."
"There's not much sense in running away from a sound," remarked Frank lightly. "If we had seen something, it might be different. I don't believe in ghosts and I'd like to get to the bottom of this. It's foolish to run away. Let's go back."
Chet Morton and Biff Hooper looked a trifle ashamed of themselves because of their precipitous flight from the house while the Hardy boys had remained.
"I got the scare of my life," Chet confessed. "Just the same, I'm game to go back if you want to."
"How about you, Biff?"
Biff Hooper scratched his head reflectively. "I'm none too anxious to go back in there again," he admitted. "Not that I'm scared, of course!" he added hastily. "But I don't see where we'd learn anything, anyway."
"Well, Joe and I are going back. That's settled," declared Frank. "We want to get to the bottom of this mystery."
"Mysteries are your meat!" observed Biff. "Well, when you come to think of it, this is a good chance for a little detective work."
He alluded to the fact that the Hardy boys were amateur detectives of some renown in Bayport. They came by their gift naturally,
