England, 1814

When Winifred is rescued from her snow-stranded carriage by the notorious and reclusive Alistair, Marquess of Coventry, she is instantly drawn to him. Jilted by her betrothed and socially ruined by untrue rumors, Winifred is tired of paying for crimes she didn't commit and decides to play the seductress London society claims she is. Thinking a night of passion shouldn't leave any lasting effects, she instead finds her heart marked forever.

Six years later, Alistair is working for the Regent as a spy. A search for Napoleon's English supporters leads him to the beguiling Winifred, recently widowed with a young son. He hasn't forgotten how the unconventional beauty warmed his bed, and the heat between them rekindles immediately. The spymaster is determined to uncover all of plucky Winifred's secrets. Especially the one regarding her son...