The Cellar
by Richard Laymon
Donna, the book's protagonist, goes on the run with her daughter Sandy when she learns that her ex-husband, who molested Sandy for years, has been released from prison. After a car accident leaves them stranded in the small California coastal town of Malcasa Point, Donna and Sandy cross paths with Judgement, a mercenary hired to track down and kill the murderous creature that supposedly haunts a local tourist attraction, the Beast House. Judge's employer, Larry, is an elderly man who had a traumatic encounter with the Beast as a child. Over the years the Beast has been connected with various rapes and murders that have happened in the house.