The New York Times bestseller! Not all fairy tales end happily ever after in this dark, fierce reimagining of Cinderella by the bestselling author of Daughter of the Moon Goddess—for fans of Holly Black, Tahereh Mafi, and Stephanie Garber. Life in the Iron Mountains is harsh and unforgiving. After the death of her beloved uncle, Yining has survived by becoming a skilled thief and an even better liar. When she acquires an enchanted ring that holds the key to a brighter future, it is stolen by her step-aunt, and Yining must venture into the imperial heart of the kingdom to seize it back. Amid the grandeur of the palace, Yining catches the eye of the ruthless and ambitious prince, who tempts her with a world she's never imagined. But nothing is as it seems, for she's soon trapped in a tangle of power, treachery, and greed—her only ally the cunning advisor from a rival court who keeps dangerous secrets of his own. To reclaim her freedom, Yining must face the shadows of her past and fight for a future she both fears and wants with all her heart.