The world as we know it ended 209 years ago. From a desert wasteland springs a single kingdom, ruled by a tyrannical King and trapped in an endless war against the shadowy desert warriors. As a desperate bid to save what remains of humanity, society has been split into two distinct classes, nicknamed the Intacts and the Fragments. For an oppressed population on the brink of revolution, a common Fragment thief could be the last hope. Up until now, Kay has survived by her wits alone. Reckless and impulsive, wanted by the King's guard, Kay has earned herself a reputation as the Runner. Using the city's rooftops as her personal domain, she manages to keep one step ahead of the King with one hand buried in the purses of Intact citizens. Driven by the plight of the Fragments and the unjust death of her family, Kay seizes the chance to graduate from small time thievery to full-scale rebellion. Her opportunity comes in the form of Will, an Intact ex-soldier with a dark past. Plucked from the streets and thrown into the shimmering palace court, Kay must use her every strength to blend into a world she doesn't belong to, closer to the enemy than she ever thought she would be.