Madame Maigret's Friend

Madame Maigret takes the lead in a disturbing investigation in this new translation, book thirty-three of the new Penguin Maigret series.
When he got to his door, he was surprised not to hear any noise in the kitchen and not to smell any food. He went in, crossed the dining room, where the table had not been laid, and at last saw Madame Maigret, in her slip, busy taking off her stockings. This was so unlike her that he could find nothing to say, and when she saw him standing there wide-eyed, sh