A Sunday Times #1 bestseller, When the Music's Over--which takes on the sexual abuse of an adolescent girl by a celebrity in the entertainment world--is one of Robinson's strongest to date.     When the body of a young girl is found in a remote countryside lane, evidence suggests she was drugged, abused, and thrown from a moving van -- before being beaten to death.      While DI Annie Cabbot investigates the circumstances in which a 14-year-old could possibly fall victim to s