Fourth Wing (The Empyrean Book 1)

Fourth Wing is a 2023 new adult fantasy novel by American author Rebecca Yarros, and the first book in the Empyrean series. It tells the story of Violet Sorrengail, a 20-year-old woman forced by her mother, a general and commander of Basgiath War College, to enter the deadly Rider Quadrant despite her small and fragile body. Violet, who has Ehlers-Danlos syndromes, must survive a series of increasingly perilous tests, including bonding with a dragon, and training to be a warrior on the front lines of Navarre's ongoing war. The book has achieved viral success on TikTok's reader community BookTok and has reached No. 1 on The New York Times bestseller list. It has been credited as helping to popularize the "romantasy" genre, which blends elements of romance and fantasy genres.