The danger rises and the deception grows in the heartstopping third book in the New York Times bestselling Impostors series! Frey and Rafi have never been closer to their goal of defeating their father, a man whose evil threatens to spread unchecked. But they've also never been in more danger. Frey's sister Rafi—no longer a twin in features, but still a twin by birth—is the wild card. Are the sisters on the same side . . . or are they playing to their own agendas? If their father is deposed from Shreve, who will take control? And what other forces may be waiting in the wings? Mirror's Edge is another brilliant blockbuster from one of the greatest speculative writers YA fiction has ever seen, set within the world of Uglies . . . and about to converge with Uglies in a spectacular way.