"Is this ... discovery the only thing that has come of your exertions?"

"No, sir. Two days after the theft, three of your guests happened to be at Crécy, in the course of a motor-trip. Two of them went on to visit the famous battlefield, while the third hurried to the post-office and sent off a little parcel, packed up and sealed according to the regulations and insured to the value of one hundred francs."

M. de Crozon objected:

"There is nothing out of the way in that."

"Perhaps you will think it less natural when I tell you that, instead of the real name, the sender gave the name of Rousseau and that the addressee, a M. Beloux, residing in Paris, changed his lodgings on the very evening of the day on which he received the parcel, that is to say, the ring."

"Was it one of my d'Andelle cousins, by any chance?" asked the count.

"No, it was neither of those gentlemen."

"Then it was Mme. de Réal?"

"Yes."

The countess, in amazement, exclaimed: