New, hand-signed, First Edition / First Print. This copy has been hand-signed by the author directly onto the title page.

He must race to find her...before they do.

Perfect for fans of Jo Nesbo, Steig Larsson and Samuel Bjork - don't miss out on the latest Scandi-crime sensation.

'Roslund has two strong prose styles - dark and darker - and both are on show in KNOCK KNOCK' New York Times

'A masterpiece of a thriller.

New, hand-signed, First Edition / First Print. This copy has been hand-signed by the author directly onto the title page.

At home, Paul shares a private world with his sister Elisabeth, a world from which parents are tacitly excluded. All that they do outside is effectively controlled by the rules of the Game: unfortunately the rules of the Game prescribe that the two children must die...