Gray Phantom

Gray Phantom, written by Herman Landon, is a mystery novel centered around a murder that occurs during a performance in a New York auditorium. The protagonist, Helen Hardwick, is the playwright who witnesses suspicious events leading up to the crime, including a haunting laughter. As she becomes embroiled in the investigation, questions arise about the enigmatic Gray Phantom's involvement. This novel combines elements of suspense and intrigue, making it a notable addition to the mystery genre.