"Where is that?"
"The next room: that door over there. On the following morning, that is to say, Sunday, I rose early. As Suzanne—my wife—was still asleep, I came into this room as gently as possible, so as not to awake her. Imagine my surprise at finding the window open, after we had left it closed the evening before!"
"A servant...?"
"Nobody enters this room in the morning before we ring. Besides, I always take the precaution of bolting that other door, which leads to the hall. Therefore the window must have been opened from the outside. I had a proof of it, besides: the second pane of the right-hand casement, the one next to the latch, had been cut out."
"And the window?"
"The window, as you perceive, opens on a little balcony surrounded by a stone balustrade. We are on the first floor here and you can see the garden at the back of the house and the railings that separate it from the Parc Monceau. It is certain, therefore, that the man came from the Parc Monceau, climbed the railings by means of a ladder and got up to the balcony."
"It is certain, you say?"
"On either side of the railings, in the soft earth of the borders, we found holes left by the two uprights of the ladder; and there were two similar holes below the balcony. Lastly, the balustrade shows two slight scratches, evidently caused by the contact of the ladder."
"Isn't the Parc Monceau closed at night?"
"Closed? No. But, in any case, there is a house building at No. 14. It would have been easy to effect an entrance that way."