“I think you are laboring under a wrong impression,” she said, haughtily.

He made haste to apologize; but while listening to further details given him by the young lady, he thought:

“What an eye! what a voice!—they are not suited to a denizen of the Saint-Denis!”

His suspicions were confirmed by the reward of twenty thousand francs, which Mme. Blanche imprudently promised him in case of success, and by the five hundred francs which she paid in advance.

“And where shall I have the honor of addressing my communications to you, Madame?” he inquired.

“Nowhere,” replied the young lady. “I shall be passing here from time to time, and I will call.”

When they left the house, Chelteux followed them.

“For once,” he thought, “I believe that fortune smiles upon me.”

To discover the name and rank of his new clients was but child’s play to Fouche’s former pupil.

His task was all the easier since they had no suspicion whatever of his designs. Mme. Blanche, who had heard his powers of discernment so highly praised, was confident of success.