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When a terrified Edie Ledwell arrives at the detectives' office begging to speak to Robin Ellacott, the private investigator doesn't know what to think. Edie, the co-creator of the popular comic strip Inky Black Heart, is being stalked by a mysterious person on the Internet who calls himself Anomie. Edie is desperate to find out who this person is. Robin decides that the agency can't help with this case and doesn't think about it again until a few days later when shocking news comes in: Edie has been tasered and murdered in Haigate Cemetery, the setting of Ink Black Heart. Robin and her partner Cormoran Strike embark on a quest to discover the identity of Anomie, and enter a maze of online aliases, business interests and family conflicts that is impossible to understand. The case will push Stryke and Robin's detective talents to the limit - and expose them to terrifying new threats...