"At the corner of the street down which I turned after outdistancing the Prefect's men on the Boulevard Richard-Wallace, Florence saved me just as I believed that all was lost. Florence had known everything for a fortnight past. She learnt the news of the double murder from the papers, those papers which she used to read out to you, and which you discussed with her. And it was by being with you, by listening to you, that she acquired the opinion which everything that happened tended to confirm: the opinion that Marie's enemy, her only enemy, was yourself."
"But why? Why?"
"Because she saw you at work," exclaimed Sauverand, "because it was more to your interest than to that of any one else that first Marie and then I should not come between you and the Mornington inheritance, and lastly"
"What?"
Gaston Sauverand hesitated and then said, plainly:
"Lastly, because she knew your real name beyond a doubt, and because she felt that Arsène Lupin was capable of anything."
They were both silent; and their silence, at such a moment, was impressive to a degree. Florence remained impassive under Don Luis Perenna's gaze; and he was unable to discern on her sealed face any of the feelings with which she must needs be stirred.
Gaston Sauverand continued:
"It was against Arsène Lupin, therefore, that Florence, Marie's terrified friend, engaged in the struggle. It was to unmask Lupin that she wrote or rather inspired the article of which you found the original in a ball of string.
