A family is hunted by a centuries-old monster: a man with a relentless obsession who can take on any identity. The String Diaries is a sweeping thriller that extends from the present day, to Oxford in the 1970s, to Hungary at the turn of the 19th century, all tracing back to a man from an ancient royal family with a consuming passion--a boy who can change his shape, insert himself into the intimate lives of his victims, and destroy them. If Hannah fails to end the chase now, her daughter is next in line. Only Hannah can decide how much she is willing to sacrifice to finally put a centuries-old curse to rest.