If you are a fan of the Cormoran Strike novels by Robert Galbraith (aka J K Rowling), The Ink Black Heart is not to be missed. Cormoran and his business partner, Robin Ellacott, try to find a possible murderer hiding behind an anonymous online persona. A strength of the Strike novels is the detailed research that is woven into the background of the stories, giving them a tight connection to recent events in London, where the novels are set.