The senior super-sleuth is the odds-on favorite to discover if a killer stalks the Hollywood Hills in the final Rachel Murdock mystery.   Though not a professional private eye, Miss Rachel Murdock has gained notoriety in certain Los Angeles circles for her crime-solving skills. They come in handy after she witnesses an extraordinary event: a woman being thrown into the window of a pet store.   Said woman is Ruth Rand, an actress desperate to find her missing niece, Lila. She is convinced that Lila's husband, a former jockey, killed her. It doesn't help that he's the one responsible for Ruth ending up on the pet store floor. When Rachel agrees to help her, she's drawn into the sordid world of horse racing and gambling. But the more she learns about the lives of those involved, the more she's willing to bet that the truth lies in the haunting figure of Lila's one-eyed cat.   Praise for Dolores Hitchens and her mysteries   "You will never regret having made the acquaintance of Miss Rachel Murdock." --The New York Times   "High-grade suspense." --San Francisco Chronicle   "For those who enjoy Little-Old-Lady detectives, this should be a pleasing mystery, particularly if active LOLs are preferred . . . Both interesting and unusual is the motive for murder." --Mystery File