A Favor for the Prince (The Duke's Sons) (The Duke's Sons #6)

Lord Alan Gresham is a bit embarrassed when the Prince Regent demands that he abandon his science experiments to work on an extremely important project―getting rid of a ghost. Alan is determined to debunk this obvious hoax as quickly as possible―until he meets a maddeningly forthright beauty.

Ariel Harding is also on a mission to discover the source behind the hauntings. She's initially unimpressed with Alan, but they soon realize that working together will get them the answers they seek. But only if they can keep their hands off each other...