You will be punished… Celestine North lives a perfect life. She's a model daughter and sister, she's well-liked by her classmates and teachers, and she's dating the impossibly charming Art Crevan. But then Celestine encounters a situation where she makes an instinctive decision. She breaks a rule and now faces life-changing repercussions. She could be imprisoned. She could be branded. She could be found flawed. In her breathtaking young adult debut, bestselling author Cecelia Ahern depicts a society where perfection is paramount and flaws lead to punishment. And where one young woman decides to take a stand that could cost her everything.

Celestine North is Flawed. Ever since Judge Crevan declared her the number one threat to the public, she has been a ghost, on the run with Carrick, the only person she can trust. But Celestine has a secret—one that could bring the entire Flawed system crumbling to the ground. A secret that has already caused countless people to go missing. Judge Crevan is gaining the upper hand, and time is running out for Celestine. With tensions building, Celestine must make a choice: save just herself or risk her life to save all Flawed people.