From one of our most successful authors and multiple New York Timesbestseller Julia Quinn comes the much anticipated story of Hyacinth, the youngest child of the famed Bridgerton siblings.

Raised by an unloving father who told him he was actually a bastard, Gareth St. Clair, the second son of a viscount, has plenty of private demons to battle. Years later, after ironically becoming the heir to the St. Clair title when his older brother dies, Gareth still doesn't understand why his father, Lord St. Clair, hasn't publicly denounced his position in society. His brother, always a champion of Gareth, leaves him a diary written in Italian. Unsure of what to do with the mysterious journal, he heads to his grandmother's house where he meets Hyacinth Bridgerton, youngest of the famed eight Bridgerton siblings. Though she is known for being outspoken and dramatic, there is something charming about her that keeps her in everyone's good graces. Fortunately for Gareth, Hyacinth can read Italian and as she begins to decipher the text, clues to the mysterious St. Clair history begin to unravel. Long ago, Gareth's grandmother hid jewels on the St. Claire estate andndash;andndash; jewels that can replenish St. Claire coffers left bare by Lord St. Claire's gambling debts. As Gareth and Hyacinth begin their search, they soon realize that they're uncovering another treasure andndash;andndash; a love infinitely more precious than any shiny bauble.

"Trust Quinn to deliver the most entertaining romance so far this year — and to set a high bar that other authors will have a tough time hurdling. Madcap, touching, laugh-out-loud funny and thoroughly satisfying on all emotional levels, her latest London-set historical focuses on Hyacinth, the eighth sibling in Quinn's bestselling Bridgerton family series (following When He Was Wicked). Too intelligent for her own good and best friends with Lady Danbury, one of society's most outspoken grande dames, Hyacinth is in her fourth season on London's Marriage Mart and again unimpressed by the male selection. Only Lady Danbury's handsome, pockets-to-let grandson Gareth St. Clair can hold his own in a conversation with her and sometimes even leaves her in a speechless, stomach-flipping state. When Hyacinth offers to translate the diary of Gareth's deceased Italian grandmother, the pair find themselves comparing notes, then exchanging kisses and finally burglarizing his estranged father's house at midnight. But the diary also holds secrets that could jeopardize their new love. Practically bouncing with humor, this book will keep readers happily on edge, waiting to see how the final unmarried Bridgerton will fare in Quinn's talented hands. Agent, Steve Axelrod. (July)" Publishers Weekly (Starred Review) (Copyright Reed Business Information, Inc.)

In this irresistible new romance by the "New York Times" bestselling author of "When He Was Wicked," the hunt for a treasure in diamonds passionately unites the rakish Gareth St. Clair and the beautiful, brilliant Hyacinth Bridgerton. Original.

Meet Our Hero . . .
Gareth St. Clair is in a bind. His father, who detests him, is determined to beggar the St. Clair estates and ruin his inheritance. Gareth's sole bequest is an old family diary, which may or may not contain the secrets of his past . . . and the key to his future. The problem is—it's written in Italian, of which Gareth speaks not a word.

Meet Our Heroine . . .
All the ton agreed: there was no one quite like Hyacinth Bridgerton. She's fiendishly smart, devilishly outspoken, and according to Gareth, probably best in small doses. But there's something about her—something charming and vexing—that grabs him and won't quite let go . . .

Meet Poor Mr. Mozart . . .
Or don't. But rest assured, he's spinning in his grave when Gareth and Hyacinth cross paths at the annual—and annually discordant—Smythe-Smith musicale. To Hyacinth, Gareth's every word seems a dare, and she offers to translate his diary, even though her Italian is slightly less than perfect. But as they delve into the mysterious text, they discover that the answers they seek lie not in the diary, but in each other . . . and that there is nothing as simple—or as complicated—as a single, perfect kiss.

Julia Quinn started writing her first book one month after finishing college and has been tapping away at her keyboard ever since. The New York Times bestselling author of sixteen novels for Avon Books, she is a graduate of Harvard and Radcliffe Colleges and lives with her family in the Pacific Northwest.