A chilling debut for fans of Mo Hayder and Sharon Bolton.Welcome to HMP Halvergate.If you're lucky, you'll get to leave. Dr Janet Palmer was glad to take a new job as lead psychologist at a remote Norfolk prison. She may live to regret it...The staff are hostile, violence can break out at any time, no one will tell her what happened to her predecessor, and there are rumours of an eyeless woman stalking the corridors, driving the prisoners to suicide. Janet is determined to find answers. But the deeper she digs, the more she realises: something is rotten in Halvergate. And it's nothing as simple as ghosts . . .