“That Affair Next Door” is a 1897 detective novel by Anne Katherine Green. The story revolves around a mysterious murder that has taken place in an otherwise unremarkable neighbourhood. The property next door to the murder scene is owned by the inquisitive Miss Butterworth, whose piqued curiosity leads to her becoming intrinsic to the solving of this horrific crime. The first instalment of Green’s female detective series “The Amelia Butterworth Mysteries” and also number eight in the ‘Mr Gryce Series’, “That Affair Next Door” is a riveting murder mystery not to be missed by fans and collectors of classic detective fiction. Contents include: “Miss Butterworth’s Window”, “The Windings of a Labyrinth”, “The Girl in Gray”, and “The End of a Great Mystery”. Anna Katharine Green (1846–1935) was an American novelist and poet. Among the first writers of detective fiction in America, she is considered to be the “mother” of the genre for her legally-accurate and well-thought-out plots. Other notable works by this author include: “The Leavenworth Case” (1878), “A Strange Disappearance” (1880), and “The Sword of Damocles: A Story of New York Life” (1881). Read & Co. Classics is proudly republishing this vintage detective novel now in a brand new edition complete with a specially-commissioned new biography of the author.