Anthony E. Pratt initially letting holiday flats. It was early in this time that Pratt worked as a solicitor's clerk, an occupation he held for about three years before retiring around 1962 (aged 59). Eventually the Cluedo patent lapsed, and in 1980 Anthony and Elva moved back to Birmingham, where they both enjoyed their retirement years. He continued to play and enjoy music and indulged his love of books including detective fiction. Anthony Pratt developed Alzheimer's disease towards the end of his life and moved into a nursing home, where he died at the age of 90. He is buried in Bromsgrove Cemetery.
Mystery Mansion (video game) Mystery Mansion (video game) Mystery Mansion is the name of a text-based adventure game written in 1978-1981 by Bill Wolpert while at the Naval Undersea Warfare Center in Keyport, Washington. It originally ran only on the HP HP-1000 minicomputer on the RTE (Real Time Executive) operating system, but was later ported by persons unknown to run under MPE (Multiprocessing Executive) on the HP-3000. Although the development dates make it contemporaneous with other seminal interactive fiction games such as Adventure and Dungeon (which went on to become the Zork series from Infocom), it remains relatively unknown due to the specialized computers