It is the autumn of 1809, and Susanna Ward's life is more perfect than she could ever have dared hope. She is reconciled with her estranged family and engaged to the man she loves, Lord James Ravenwood. But across the English Channel, Britain's war with the Emperor Napoleon still rages. And when a chance letter arrives from London, Susanna learns that James has secretly allowed himself to be drawn into the shadowy world of espionage and intrigue.

To be with James, Susanna travels to London--and is soon caught up in a dangerous operation to uncover a ring of French spies and a traitor within the British War Office. Susanna will risk her life to protect both her country and the man she loves. And yet as she sees James torn between love for her and duty to King and country, she realizes that the greatest danger may be to her own heart.