A thrilling, resonant and inspiring novel about justice, privilege and the power of the young to strive for change. Set in a world where Adam and Leila and their friend Zak live as Nons under the Permitted ruling class. Then, when Adam and Leila's father dies unexpectedly, their mother faces losing her permit to live in the Stone City with deportation to where she was born. Before music-loving Adam can implement his plan to save Mama, Zak is arrested for a bold prank that goes wrong, with far-reaching repercussions for them all . . .