Thomas Kell thought he was done with spying. A former MI6 officer, he devoted his life to the Service, but it has left him with nothing but grief and a simmering anger against the Kremlin. Then Kell is offered an unexpected chance at revenge. From the winner of the CWA Ian Fleming Steel Dagger Award for Best Thriller of the Year comes a gripping and suspensful new syp novel. Colin Firth has acquired movie rights to the series.