A Duty of Care'Compelling . . . almost Dickensian' Times 'The best thriller writer in the world' Daily Telegraph * Jonas Merrick a legendary intelligence analyst for MI5 has been banished to the Post Room of Thames House. There, he is expected to pass his remaining days before inevitable retirement. In a Russian gulag, an MI6 agent has developed an unlikely passion for a prisoner and has come up with an ingenious plan to free her. The key: a ruthless Albanian gang