“It is here, then,” he murmured, “that I am to find the solution of the enigma! Here, behind these embroidered curtains, dwells the frightened fugitive of the other night. What agony of fear must torture her since she has discovered the loss of her earring!” For more than an hour, standing under a neighbor’s _porte cochere_, Lecoq remained watching the house. He would have liked to see the face of any one; but the time passed by and not even a shadow could be detected behind the curtain; not even a servant passed across the courtyard. At last, losing patience, the young detective determined to make inquiries in the neighborhood, for he could not take a decisive step without obtaining some knowledge of the people he was to encounter. While wondering where he could obtain the information he required, he perceived, on the opposite side of the street, the keeper of a wine-shop smoking on his doorstep. At once approaching and pretending that he had forgotten an address, Lecoq politely asked for the house where Marchioness d’Arlange resided. Without a word, and without condescending to take his pipe from his mouth, the man pointed to the mansion which Lecoq had previously watched. There was a way, however, to make him more communicative, namely, to enter the shop, call for something to drink, and invite the landlord to drink as well. This was what Lecoq did, and the sight of two well-filled glasses unbound, as by enchantment, the man’s hitherto silent tongue. The young detective could not have found a better person to question, for this same individual had been established in the neighborhood for ten years, and enjoyed among the servants of the aristocratic families here residing a certain amount of confidence. “I pity you if you are going to the marchioness’s house to collect a bill,” he remarked to Lecoq. “You will have plenty of time to learn the way here before you see your money. You will only be another of the many creditors who never let her bell alone.” “The deuce! Is she as poor as that?” “Poor! Why, every one knows that she has a comfortable income, without counting this house. But when one spends double one’s income every year, you know--” The landlord stopped short, to call Lecoq’s attention to two ladies who were passing along the street, one of them, a woman of forty, dressed in black; the other, a girl half-way through her teens. “There,” quoth the wine-seller, “goes the marchioness’s granddaughter, Mademoiselle Claire, with her governess, Mademoiselle Smith.” Lecoq’s head whirled. “Her granddaughter!” he stammered. “Yes--the daughter of her deceased son, if you prefer it.” “How old is the marchioness, then?” “At least sixty: but one would never suspect it. She is one of those persons who live a hundred years. And what an old wretch she is too. She would think no more of knocking me over the head than I would of emptying this glass of wine--” “Excuse me,” interrupted Lecoq, “but does she live alone in that great house?”