My Lord, My Rogue (Noble Hearts #4)
Anna St. Claire

Lord Benjamin Crewe, the Marquess of Willington, planned to enjoy the Christmastide season relaxing. Instead, he accepts a dangerous assignment from the Crown and while working it, comes face to face with the woman he always wished he had married. Only she has been thought dead for three years.
Needing answers, he pursues her at the same time a treacherous enemy of England surfaces, and the two of them become tangled in a web of danger, espionage, and deception.
Can Honora and Benjamin survive the danger in which they find themselves and gain a chance for love and happiness?