Lucy, a master forger, infiltrates a Yorkshire estate disguised as a nanny to dodge her debts — only to be proposed to by its owner, Duke Kane, ten seconds after they meet.
After the marriage, she slowly notices the manor's strange nighttime rules and stumbles upon a horrifying truth: Kane drinks blood. He is in fact a 320-year-old vampire, and this marriage is a trap he spent three years engineering.
Lies and bloodline secrets intertwine. Lucy awakens her heritage as a descendant of the Templar Knights and redeems Kane with her silver blood — and the two move from mutual scheming to a shared fate.
The Duke's heart stirred first. In the end, though, it was both of them who fell.
