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 * 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.