An idyllic retreat? Or a madhouse soaked in blood? Only the Walkers can tell you...

The Oaks is an idyllic, up-market country club – but its ornately carved walls hide a horrific past. Sixty years ago the house was an asylum, home to crazed psychopaths. One night all of them disappeared, never to be seen again.

Jack Reed, the owner of The Oaks, has no idea about the building's terrible history. It is only when Jack's son is dragged into the walls of the mansion that he realises what happened sixty years ago – and just where the inmates have been living all this time...

'One of the most original and frightening storytellers of our time' PETER JAMES