In a subdued voice, Bendlow rapidly related all he knew about the man he called the Wolf, and gave his reasons for believing him to be the present occupant of the house. When he concluded, Peret could scarcely control his elation.

Voila,” he exclaimed softly. “You have done your work better than you know, my friend. Everything fits together beautifully. Now, let’s to work. I wonder if there is any one in the house now?”

“Can’t say for sure, but I doubt it.”

“Well, we’re going in, regardless. It’s dangerous business, but necessary. I must clear up the mystery of the whispering Thing.”

“The Whispering Thing?” questioned Bendlow.

Oui,” whispered Peret tersely. “I cannot tell you what it is, for I do not know. But it’s a demon, my friend, be sure of that! Keep close to me and be prepared for any eventuality. Ready?”

“Yep,” laconically. “Lead on.”

Peret tried the door behind him and found it locked. After several unsuccessful attempts, he opened it with a master key and, followed by Bendlow, entered the cellar. Closing the door, Peret brought his flashlight into play, and then, like a phantom, he passed over the concrete floor and ascended a flight of steps in the rear.

Unlocking the door at the head of the steps, the two detectives stepped out into the carpeted hall and paused for a moment to listen.