"Pshaw! I can tell you how to do it. But you wouldn't dare," chuckled Clarence.

"How?" demanded Neale.

"You wouldn't dare!"

"Well—mebbe not. But tell me anyhow."

"There's an old trap-door in the dock under that office-shack."

"You don't mean it, Clarry?"

"Yes, there is. I know it's there. But it mightn't be open now—I mean maybe it's nailed down. I don't believe Seneca knows it's there. The boards just match."

"Let's try it!" exclaimed Neale.

"Oh, Neale, you wouldn't!" gasped Agnes, who had heard the conversation.

"Of course he wouldn't," scoffed Clarence. "He's only bluffing. Father used to let us play around the old shack before Seneca got it to live in. And I found the trap. But I never said anything about it."