Lord Thorston is a libertine and a wastrel. At least, that's what he lets people think. Despite his life of privilege, Thorston has never shied away from hard work or adventure—he's just as competent wielding a hammer as he is charming the ton. Putting his quick wit and infamous physical strength to good use, he secretly serves the crown hunting smugglers and spies.

Now his search leads him to a beautiful woman in a crumbling house. Miss Seraphina Janesley is surrounded by schemes and intrigue. Danger circles her like a gathering storm. Will Thorston do his duty and strike her down, or will his own heart betray him?