2020 detective novel by J. K. Rowling Troubled Blood UK first edition cover AuthorRobert Galbraith CountryUnited Kingdom LanguageEnglish GenreCrime fiction PublisherSphere Books Publication date 15 September 2020 Pages944 ISBN0751579939 Preceded byLethal White Troubled Blood is the fifth novel in the Cormoran Strike series, written by J. K. Rowling and published under the pseudonym Robert Galbraith. A breathtaking, labyrinthine epic, Troubled Blood is the fifth Strike and Robin novel and the most gripping and satisfying yet. Private Detective Cormoran Strike is visiting his family in Cornwall when he is approached by a woman asking for help finding her mother, Margot Bamborough – who went missing in mysterious circumstances in 1974. A breathtaking, labyrinthine epic, Troubled Blood is the fifth Strike and Robin novel and the most gripping and satisfying yet. But even more dismaying is that the cross-dressing psychopath … The novel was released on 15 September 2020. “ Troubled Blood ” confirms they do, in the person of a male serial killer known to have worn a dress. Private Detective Cormoran Strike is visiting his family in Cornwall when he is approached by a woman asking for help finding her mother, Margot Bamborough – who went missing in mysterious circumstances in 1974. Start by marking “Troubled Blood (Cormoran Strike, … Goodreads helps you keep track of books you want to read. Troubled Blood (Cormoran Strike, #5) by Robert Galbraith.