Grace realizes to what a perfection constant practice brings one's power of observation. The inspector and I will cheerfully eat anything we've missed—won't we, inspector?" And he laughed heartily at his joke.
"It might always prove a large mouthful," said the Duke with an ironical smile.
M. Formery assumed his air of profound reflection, and walked a few steps up and down the room, frowning:
"The more I think about it," he said, "the clearer it grows that we have disposed of the Lupin theory. This is the work of far less expert rogues than Lupin. What do you think, inspector?"
"Yes; I think you have disposed of that theory, sir," said the inspector with ready acquiescence.
"All the same, I'd wager anything that we haven't disposed of it to the satisfaction of Guerchard," said M. Formery.
"Then he must be very hard to satisfy," said the Duke.
"Oh, in any other matter he's open to reason," said M. Formery; "but Lupin is his fixed idea; it's an obsession—almost a mania."
"But yet he never catches him," said the Duke.
