How To Be A World Class Private Investigator - The book that private investigator Thomas Magnum (Tom Selleck) was writing during the run of the detective drama MAGNUM, P.I./CBS/1980-88. His boss, Jonathan Quayle Higgins (John Hillerman), the overseer of the Oahu mansion where Magnum lived and worked as a security guard, was also continually writing a diary that recounted his memories of his days with military intelligence. It was called Crisis in Suez. The estate where Magnum and Higgins lived was owned by Robin Masters, a world famous writer of mystery novels. Robin's first published story was  The Last Days of Babylon.