The key to good is found in truth. Genevieve may have left the circus behind in Oregon, but there is plenty of show still to come. When she and Henry land in France, they are whisked away to Croix-Mare, the home of Henry's grandfather, Nutesh, where they will prepare for a journey they never could've imagined. Now that they have all three AVRAKEDAVRA texts—Life, Death, and Memory—the books must be destroyed in the Undoing. However, it's not as simple as taking the books to their birthplace in Babylon and setting them alight. Genevieve and Henry must rely on unexpected allies as they embark on a harrowing global search to acquire pieces necessary to complete the Undoing. They're offered cover and protection by La Vérité, the secret network of followers devoted to the message of the AVRAKEDAVRA, who, not surprisingly, are found under the big top—because no one does underground quite like the circus. But loyalties among the magical community...