Baron Trigault's Vengeance by Emile Gaboriau

Having almost reached the goal, Chupin slackened his pace. He approached the shop very cautiously and peered inside, deeming it prudent to reconnoitre a little before he went in. And certainly there was nothing to prevent a prolonged scrutiny. The night was very dark, the quay deserted. No one was to be seen; not a sound broke the stillness. The darkness, the surroundings, and the silence were sinister enough to make even Chupin shudder, though he was usually as thoroughly at home in the loneliest and most dangerous by-ways of Paris as an honest man of the middle classes would be in the different apartments of his modest household. "That scoundrel's wife must have less than a hundred thousand a year if she takes up her abode here! " thought Chupin.

And, in fact, nothing could be more repulsive than the tenement in which Madame Paul had installed herself. It was but one story high, and built of clay, and it had fallen to ruin to such an extent that it had been found necessary to prop it up with timber, and to nail some old boards over the yawning fissures in the walls. "If I lived here, I certainly shouldn't feel quite at ease on a windy day," continued Chupin, sotto voce.