She went away almost immediately, walking quickly and passed through streets that were unknown to the Englishman. As it was now almost dark, he walked close behind her and followed her into a five-story house of double flats and, therefore, occupied by numerous tenants. At the second floor she stopped and entered. Two minutes later the Englishman commenced to try the keys on the bunch he had taken from the man in the rue Chalgrin. The fourth key fitted the lock.
Notwithstanding the darkness of the rooms, he perceived that they were absolutely empty, as if unoccupied, and the various doors were standing open so that he could see all the apartments. At the end of a corridor he perceived a ray of light and, by approaching on tiptoe and looking through the glass door, he saw the veiled lady who had removed her hat and dress and was now wearing a velvet dressing-gown. The discarded garments were lying on the only chair in the room and a lighted lamp stood on the mantel.
Then he saw her approach the fireplace and press what appeared to be the button of an electric bell. Immediately the panel to the right of the fireplace moved and slowly glided behind the adjoining panel, thus disclosing an opening large enough for a person to pass through. The lady disappeared through this opening, taking the lamp with her.
The operation was a very simple one. Sholmes adopted it and followed the lady. He found himself in total darkness and immediately he felt his face brushed by some soft articles. He lighted a match and found that he was in a very small room completely filled with cloaks and dresses suspended on hangers. He picked his way through until he reached a door that was draped with a portiere. He peeped through and, behold, the blonde lady was there, under his eyes, and almost within reach of his hand.
She extinguished the lamp and turned on the electric lights. Then for the first time Herlock Sholmes obtained a good look at her face. He was amazed. The woman, whom he had overtaken after so much trouble and after so many tricks and manœuvres, was none other than Clotilde Destange.
Clotilde Destange, the assassin of the Baron d’Hautrec and the thief who stole the blue diamond! Clotilde Destange, the mysterious friend of Arsène Lupin! And the blonde lady!
“Yes, I am only a stupid ass,” thought Herlock Sholmes at that moment. “Because Lupin’s friend was a blonde and Clotilde is a brunette, I never dreamed that they were the same person. But how could the blonde lady remain a blonde after the murder of the baron and the theft of the diamond?”
Sholmes could see a portion of the room; it was a boudoir, furnished with the most delightful luxury and exquisite taste, and adorned with beautiful tapestries and costly ornaments. A mahogany couch, upholstered in silk, was located on the side of the room opposite the door at which Sholmes was standing. Clotilde was sitting on this couch, motionless, her face covered by her hands. Then he perceived that she was weeping. Great tears rolled down her pale cheeks and fell, drop by drop, on the velvet corsage. The tears came thick and fast, as if their source were inexhaustible.
A door silently opened behind her and Arsène Lupin entered. He looked at her for a long time without making his presence known; then he approached her, knelt at her feet, pressed her head to his breast, folded her in his arms, and his actions indicated an infinite measure of love and sympathy. For a time not a word was uttered, but her tears became less abundant.