Mary Cassatt painting

Mary Cassatt painting
Rouletabille, pointing to a window which I recognised as the only one belonging to Mademoiselle Stangerson's apartment, said to me:
"If you had been here, two nights ago, you would have seen your humble servant at the top of a ladder, about to enter the chateau by that window."
Mary Cassatt painting
As I expressed some surprise at this piece of nocturnal gymnastics, he begged me to notice carefully the exterior disposition of the chateau. We then went back into the building.
"I must now show you the first floor of the chateau, where I am living," said my friend.
Mary Cassatt painting