The rue Murillo is bordered with magnificent private residences, the rear of which overlook the Parc Monceau. One of the most pretentious of these houses is number 18, owned and occupied by the Baron d’Imblevalle and furnished in a luxurious manner consistent with the owner’s taste and wealth. There was a courtyard in front of the house, and, in the rear, a garden well filled with trees whose branches mingle with those of the park.

After ringing the bell, the two Englishmen were admitted, crossed the courtyard, and were received at the door by a footman who showed them into a small parlor facing the garden in the rear of the house. They sat down and, glancing about, made a rapid inspection of the many valuable objects with which the room was filled.

“Everything very choice,” murmured Wilson, “and in the best of taste. It is a safe deduction to make that those who had the leisure to collect these articles must now be at least fifty years of age.”

The door opened, and the Baron d’Imblevalle entered, followed by his wife. Contrary to the deduction made by Wilson, they were both quite young, of elegant appearance, and vivacious in speech and action. They were profuse in their expressions of gratitude.

“So kind of you to come! Sorry to have caused you so much trouble! The theft now seems of little consequence, since it has procured us this pleasure.”

“How charming these French people are!” thought Wilson, evolving one of his commonplace deductions.

“But time is money,” exclaimed the baron, “especially your time, Monsieur Sholmes. So I will come to the point. Now, what do you think of the affair? Do you think you can succeed in it?”

“Before I can answer that I must know what it is about.”

“I thought you knew.”

“No; so I must ask you for full particulars, even to the smallest detail. First, what is the nature of the case?”