In an alternate London in 1923, one girl accidentally breaks the tenuous truce between dragons and humans in this sweeping debut and epic retelling of Bletchley Park steeped in language, class, and forbidden romance. Perfect for teen fans of Fourth Wing and Babel.
* New York Times Bestseller * #1 International Bestseller * As Seen in Cosmo * Audible Most Anticipated Audiobooks of 2025 * Indigo Best Books of 2025 *
Dragons soar through the skies and protests erupt on the streets, but Vivien Featherswallow isn’t worried. She’s going to follow the rules, get a summer internship studying dragon languages, be smart, be sweet, and make sure her little sister never, ever has to risk growing up Third Class. She just has to free one dragon.
By midnight, Viv has started a civil war.
With her parents and cousin arrested and her sister missing, Viv is brought to Bletchley Park as a codebreaker—if she succeeds, she and her family can all go home again. If she doesn’t, they’ll all die.
As Viv begins to discover the secrets of a hidden dragon language, she realizes that the fragile peace treaty that holds human and dragon societies together is corrupt, and the dangerous work Viv is doing could be the thread that unravels it.
- Forbidden Romance: Vivien must focus on her mission, but a dangerous connection inside Bletchley Park threatens to derail everything. In a world of secrets, trusting the wrong person could be as fatal as failing to break the code.
- High-Stakes Political Intrigue: To save her arrested family, Vivien must unravel a conspiracy that goes to the very top, exposing the corruption at the heart of the peace treaty between humans and dragons.
- A Divided Society: In an alternate 1920s London, a rigid class system separates the privileged from the oppressed. For Vivien, one mistake could send her family tumbling into the desperate world of the Third Class—a fate she’ll do anything to avoid.
- Epic YA Historical Fantasy: Perfect for fans of Fourth Wing and Babel, this sweeping debut reimagines Bletchley Park with codebreaking linguists, a looming civil war, and a tenuous truce between dragons and humankind on the brink of collapse.