“Of course,” Sholmes said to himself, as he wrote in a register the titles of the books which Mon. Destange dictated to him, “all that is vague and incomplete, but it is quite a long step in advance. I shall surely solve one of these absorbing problems: Is Mon. Destange associated with Arsène Lupin? Does he continue to see him? Are the papers relating to the construction of the three houses still in existence? Will those papers not furnish me with the location of other houses of similar construction which Arsène Lupin and his associates will plunder in the future?
“Monsieur Destange, an accomplice of Arsène Lupin! That venerable man, an officer of the Legion of Honor, working in league with a burglar—such an idea was absurd! Besides, if we concede that such a complicity exists, how could Mon. Destange, thirty years ago, have possibly foreseen the thefts of Arsène Lupin, who was then an infant?”
No matter! The Englishman was implacable. With his marvellous scent, and that instinct which never fails him, he felt that he was in the heart of some strange mystery. Ever since he first entered the house, he had been under the influence of that impression, and yet he could not define the grounds on which he based his suspicions.
Up to the morning of the second day he had not made any significant discovery. At two o’clock of that day he saw Clotilde Destange for the first time; she came to the library in search of a book. She was about thirty years of age, a brunette, slow and silent in her movements, with features imbued with that expression of indifference which is characteristic of people who live a secluded life. She exchanged a few words with her father, and then retired, without even looking at Sholmes.
The afternoon dragged along monotonously. At five o’clock Mon. Destange announced his intention to go out. Sholmes was alone on the circular gallery that was constructed about ten feet above the floor of the rotunda. It was almost dark. He was on the point of going out, when he heard a slight sound and, at the same time, experienced the feeling that there was someone in the room. Several minutes passed before he saw or heard anything more. Then he shuddered; a shadowy form emerged from the gloom, quite close to him, upon the balcony. It seemed incredible. How long had this mysterious visitor been there? Whence did he come?
The strange man descended the steps and went directly to a large oaken cupboard. Sholmes was a keen observer of the man’s movements. He watched him searching amongst the papers with which the cupboard was filled. What was he looking for?
Then the door opened and Mlle. Destange entered, speaking to someone who was following her:
“So you have decided not to go out, father?... Then I will make a light ... one second ... do not move....”
The strange man closed the cupboard and hid in the embrasure of a large window, drawing the curtains together. Did Mlle. Destange not see him? Did she not hear him? Calmly she turned on the electric lights; she and her father sat down close to each other. She opened a book she had brought with her, and commenced to read. After the lapse of a few minutes she said:
“Your secretary has gone.”