The LeRouge Case

Classic French detective novel, in English translation. According to Wikipedia: "Émile Gaboriau (November 9, 1832 – September 28, 1873) was a French writer, novelist, journalist, and a pioneer of detective fiction... after publishing some novels and miscellaneous writings, found his real gift in L'Affaire Lerouge (1866). The book, which was Gaboriau's first detective novel, introduced an amateur d...