The Secrets of Sir Richard Kenworthy

Iris Smythe-Smith has always been overlooked, the cellist in her family's notoriously dreadful annual musicale, but sharp-witted and watchful. When Sir Richard Kenworthy, who needs a wife within a month, notices her there, he sets out to charm her. Iris suspects he is not what he seems, yet after a hasty courtship she accepts his proposal.

Back at his home in Yorkshire she discovers that her husband is hiding a secret about his family, and that he has been courting her in earnest partly to win her love before she learns it. As the truth comes out, Iris has to decide what she wants from a marriage that began in haste and in secrecy.

Set in 1825 and published in January 2015 by Avon, this is the fourth and final novel of Julia Quinn's Smythe-Smith Quartet, and it reached number 2 on the New York Times mass-market paperback list.