"By that well-known logical process, the process of elimination, we've excluded all methods of egress except the chimney." He paused, frowning, in some perplexity; and then he said uneasily: "What I don't like about it is that Victoire was set in the fireplace.
I asked myself at once what was she doing there.

It was unnecessary that she should be drugged and set in the fireplace--quite unnecessary." "It might have been to put off an examining magistrate," said the Duke.
"Having found Victoire in the fireplace, M.Formery did not look for anything else." "Yes, it might have been that," said Guerchard slowly.

"On the other hand, she might have been put there to make sure that I did not miss the road the burglars took.

That's the worst of having to do with Lupin.

He knows me to the bottom of my mind.