"Here you are!" panted Holmes.

Dick took the cold chisel, placed the edge against one side of the lid, and was about to strike the first blow when Darry snatched the hammer from his hand.

"What ails you?" Prescott demanded.

"Suspicion," Dave replied dryly. "In fact, I've a bad case of suspiciousness."

"What are you talking about?" Dick insisted.

"I don't know," Dave admitted. "But I've something of a shivery hunch that perhaps we'd better not open that box."

"What, then? Toss it into the lake?"

"Even that might not be as foolish as it sounds to you," Darry went on. "How do we know what that box contains!"

"We never will know until we open it," declared Greg impatiently.

"And then we might be mighty sorry that we opened it," Dave continued.