"Let us admit, until further information is obtained, that the baron was murdered by Antoinette Bréhat. We should still have to explain what way she can have taken to go out after committing the crime, to return after Charles's departure and to go out again before the arrival of the commissary. Have you any opinion on this subject, M. Ganimard?"
"No."
Ganimard wore an air of embarrassment. At last, he spoke, not without a visible effort:
"All that I can say is that I find in this the same way of setting to work as in the ticket 514-23 case, the same phenomenon which one might call the faculty of disappearance. Antoinette Bréhat appears and disappears in this house as mysteriously as Arsène Lupin made his way into Maître Detinan's and escaped from there in the company of the blonde lady."
"Which means...?"
"Which means that I cannot help thinking of these two coincidences, which, to say the least, are very odd: first, Antoinette Bréhat was engaged by Sœur Auguste twelve days ago, that is to say, on the day after that on which the blonde lady slipped through my fingers. In the second place, the hair of the blonde lady has precisely the same violent colouring, the metallic brilliancy with a golden sheen, which we find in this."
"So that, according to you, Antoinette Bréhat ..."
"Is none other than the blonde lady."
"And Lupin, consequently, plotted both cases?"