Ex-MI5 agent Harry Tate is back - "Harry. Plse make Grosvenor Square tomorrow 18.30. Urgent. Remember Mirovica." An atrocity that allegedly took place under Harry's watch in Kosovo in 1999 returns to haunt him when he receives a summons from an old UN contact. A lone assassin is tracking down all those who were present that fateful night, despatching his victims with cold, skilful efficiency. Who is he and why does he want revenge? If...