Local businesswoman and aspiring blackmailer Andrea De Ritter asks former MI5 chief Grace Orde to sign her new memoir, Lies and Secrets, to “Leon.” She adds a cryptic note of her own — “Who killed Mary?” — then dispatches the book to her intended blackmail victim, Leon Suskind. But it is Andrea who becomes the victim…of murder. Deciphering Andrea’s puzzling inscription and Lies and Secrets’ connection to Leon is no easy task for Lewis and Hathaway, whose suspects include everyone from gifted children to gifted liars.