sentences:  He also became a regular at the Mañana Literary Society, which met in Laurel Canyon at the home of Parsons' friend Robert A. Heinlein and included science fiction writers including Cleve Cartmill, Jack Williamson, and Anthony Boucher.Among Parsons' favorite works of fiction was Williamson's "Darker Than You Think", a novelette published in the fantasy magazine "Unknown" in 1940, which inspired his later occult workings.Boucher used Parsons as a partial basis for the character of Hugo Chantrelle in his murder mystery "Rocket to the Morgue" (1942).