“Yes, I know who gave the key, and I know who told the secret word.”
“The key might have been M. Fauvel’s. But the word——”
“The word you were foolish enough to give. You have forgotten, I suppose. But fortunately Gypsy remembered. You know that, two days before the robbery, you took Lagors and two other friends to sup with Mme. Gypsy? Nina was sad, and reproached you for not being more devoted to her.”
“Yes, I remember that.”
“But do you remember what you replied to her?”
“No, I do not,” said Prosper after thinking a moment.
“Well, I will tell you: ‘Nina, you are unjust in reproaching me with not thinking constantly of you; for at this very moment your dear name guards M. Fauvel’s safe.’”
The truth suddenly burst upon Prosper like a thunderclap. He wrung his hands despairingly, and cried:
“Yes, oh, yes! I remember now.”
“Then you can easily understand the rest. One of the scoundrels went to Mme. Fauvel, and compelled her to give up her husband’s key; then, at a venture, placed the movable buttons on the name of Gypsy, opened the safe, and took the three hundred and fifty thousand francs. And Mme. Fauvel must have been terribly frightened before she yielded. The day after the robbery the poor woman was near dying; and it was she who at the greatest risk sent you the ten thousand francs.”