The year is 1833: ghosts from the past walk as reminders of wicked deeds but the rich and privileged still have the whip hand in the game of power. Nathaniel Parry, British agent, has set up home and a new life in Bath but old evils and old scores from the French Wars, as well as old loves, confuse the present. In his mission for truth and justice against villains and femmes fatales he is not alone. Working in the shadows is his ally, Cornelius Lee, a formidable and charismatic Chinese agent on a mission for his Emperor. The story follows on from Riot and Retribution.