The next gripping novel by Mari Hannah. When the body of what appears to be an adult female is found on the Northumberland coastline, it is DCI Kate Daniels and her murder investigation team that are first on the scene. Then another body is discovered sitting side by side with the first, and suddenly everything changes. Why have they been placed together in such a desolate area beneath the walls of an imposing castle? Meanwhile prison psychologist Emily McCann is just returning to work after the death of her husband only to find herself the fixation of convicted sex offender Walter Fearon. As his mind games become more and more intense could it be possible what’s happening on the outside has something to do with his murderous past, and as his parole approaches what exactly does he plan for Emily? As Daniels’ investigation runs down dead end after dead end it becomes apparent that nothing is quite as it seems, and someone is hiding more than one deadly secret...