“I see one of the drawers has been forced open,” he remarked.

“Lieutenant Culligore did that,” explained the woman. “That was the drawer where Mr. Gage kept most of his valuables.”

“Including the Maltese cross,” the Phantom smilingly put in.

Mrs. Trippe nodded. “There’s a spring somewhere that opens and shuts it, but none of us could find it, and so Lieutenant Culligore had to break the drawer open.”

“Yet the cross was gone,” observed the Phantom, “and the drawer was intact when Lieutenant Culligore found it. That would seem to indicate that the murderer knew how to operate the spring.”

“Well, hasn’t the Phantom proved that he knows just about all there is to know?”

“I am sure the Phantom would feel highly complimented if he could hear you say that.” He smiled discreetly, realizing that here was another item of proof, for he was willing to wager that, though he had never seen Gage work the spring, he could have opened the drawer without laying violent hands upon it. He turned to the window, carefully examined the catch, then raised the lower half and endeavored to thrust his shoulders through the opening. The attempt satisfied him that even a smaller man than himself would have found it impossible to squeeze through.

That left only the door as a means of egress and ingress, and the door had been bolted on the inside when Officer Pinto arrived, which circumstance seemed to render it flatly impossible for the murderer to have escaped that way. He tried the lock and examined the stout bolt, then stepped through to the other side, closing the door behind him. A wrinkle of perplexity appeared above his eyes. Even the Phantom’s nimble wits could not devise a way of passing through the door and leaving it bolted on the inside. The feat did not seem feasible, and yet the murderer must have accomplished it. His face wore a frown as he reëntered the little chamber.

“Can’t figger it out, eh?” The housekeeper seemed to have read his mind. “Well, you needn’t try. The police did, and they had to give it up as a bad job. The Phantom has a cute little way with him, doing things so they can’t be explained.”

“And yet,” facing her squarely, “you don’t think the Phantom committed the murder?”