In the glittering world of Regency London, Lady Kate's secret could be her downfall.

Smuggling French fashion designs is one thing, but when Lady Kate accidentally acquires Napoleon's book of codes, she becomes entangled in a web of danger, desire, and deception.

As break-ins and attempts on her life begin, the gallant Ambrose St. Claire storms onto the scene—a naval officer assigned by the Home Office to retrieve the codes and monitor Kate's every move. But Ambrose finds himself irresistibly drawn to the audacious lady. As they circle each other in a thrilling dance of attraction and suspicion, neither can deny the electrifying spark between them.

As threats to Kate escalate to terrifying heights, she must navigate a treacherous landscape of fashion rivals, family schemes, and lethal secrets.

In a heart-stopping revelation, Kate realizes that the danger might be closer to home than she ever imagined.

Can she trust Ambrose?