A Brighton Tragedy is a mystery novel written by Guy Newell Boothby and published in 1905. The story is set in the seaside town of Brighton and follows the investigation of a murder. The victim is a wealthy businessman named Samuel Slade, who is found dead in his hotel room. The prime suspect is his nephew, Jack Slade, who was seen arguing with him just before the murder. However, Jack claims to be innocent and enlists the help of a journalist named...