Lady Georgiana Rannoch knows nothing is simple when you’re thirty-fifth in line for the British crown, but her upcoming marriage proves to be the ultimate complication in the tenth mystery in the New York Times bestselling Royal Spyness series.

As Lady Georgiana's beloved Darcy drives her out of London, she soon discovers that he isn’t planning to introduce her to the pleasures of sinning in secret—as she had hoped—but to make her his wife! 

Of course, she'll need special permission from the king to marry a Roman Catholic. Though he will inherit a title, Darcy is as broke as Georgie. Even his family’s Irish castle has been sold to a rich American who now employs his father. 

Nothing will deter them from their mission—except perhaps the news that Georgie's future father-in-law has just been arrested for murdering the rich American. With the elopement postponed, they head for Ireland, where the suspect insists he’s innocent, and it’s up to them to prove it—for better or worse. Praise for the Royal Spyness Mysteries

“Wonderful characters...A delight.”—#1 New York Times bestselling author Charlaine Harris

“An insightful blend of old-fashioned whodunnit, clever satire and drawing room comedy of errors.”—New York Times bestselling author Jacqueline Winspear

“Brilliant...This is so much more than a murder mystery. It’s part love story, part social commentary, part fun and part downright terrifying. And completely riveting.”—#1 New York Times bestselling author Louise Penny

“The perfect fix between seasons for Downton Abbey addicts.”—New York Times bestselling author Deborah Crombie

“Fans of P.G. Wodehouse looking for laughs mingled with some amateur sleuthing will be quite pleased.”—Publishers Weekly (starred review)

“Georgie’s high spirits and the author’s frothy prose are utterly captivating.”—The Denver Post

“A smashing romp.”—Booklist (starred review)