The Lerouge Affair V3 is a novel written by French author Emile Gaboriau and originally published in 1908. It is the third installment in the series of detective novels featuring the character of Monsieur Lecoq. The story follows the investigation of the murder of a wealthy widow named Madame Lerouge, whose body is found in her country house in France. Monsieur Lecoq, a detective with the French police, is assigned to the case and begins to unravel...