"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!"
"But how?" asked the poor girl tearfully.
We heard her straining, trying to free herself from the bonds that held her.
"I know where the key is," she said, in a voice that seemed exhausted by the effort she had made. "But I am fastened so tight ... Oh, the wretch!"
And she gave a sob.
"Where is the key?" I asked, signing to M. de Chagny not to speak and to leave the business to me, for we had not a moment to lose.