“But which was the thief, Raoul or Clameran? What enables them to thus tyrannize over Mme. Fauvel? And how does Madeleine come to be mixed up in the affair?”

“These questions, my dear Prosper, I cannot yet answer; therefore I postpone seeing the judge. I only ask you to wait ten days; and, if I cannot in that time discover the solution of this mystery, I will return and go with you to report to M. Patrigent all that we know.”

“Are you going to leave the city?”

“In an hour I shall be on the road to Beaucaire. It was from that neighborhood that Clameran came, as well as Mme. Fauvel, who was a Mlle. de la Verberie before marriage.”

“Yes, I knew both families.”

“I must go there to study them. Neither Raoul nor Clameran can escape during my absence. The police are watching them. But you, Prosper, must be prudent. Promise me to remain a prisoner here during my trip.”

All that M. Verduret asked, Prosper willingly promised. But he did not wish to be left in complete ignorance of his projects for the future, or of his motives in the past.

“Will you not tell me, monsieur, who you are, and what reasons you had for coming to my rescue?”

The extraordinary man smiled sadly, and said:

“I tell, in the presence of Nina, on the day before your marriage with Madeleine.”