“But where are you?” asked Christine. “There are only two doors in my room, the Louis-Philippe room of which I told you, Raoul; a door through which Erik comes and goes, and another which he has never opened before me and which he has forbidden me ever to go through, because he says it is the most dangerous of the doors, the door of the torture-chamber!”

“Christine, that is where we are!”

“You are in the torture-chamber?”

“Yes, but we can not see the door.”

“Oh, if I could only drag myself so far! I would knock at the door and that would tell you where it is.”

“Is it a door with a lock to it?” I asked.

“Yes, with a lock.”

“Mademoiselle,” I said, “it is absolutely necessary that you should open that door to us!”