Red Queen Book 1 : Red Queen

This is a world divided by blood ? Red or Silver. The Reds are commoners, ruled by a Silver elite in possession of god-like superpowers. And to seventeen- year-old Mare, a Red girl from the poverty-stricken Stilts, it seems like nothing will ever change. But Mare possesses a deadly talent of her own. One that threatens to destroy the balance of power. Fearful of her potential, the Silvers hide Mare in plain view, declaring her a long-lost Silver princess.
Knowing that one false move will mean her death, Mare must use her new position to bring down the regime ? from the inside. Now Mare has entered a game of betrayal and lies. This is Reds against Silvers, prince against prince, and Mare against her own heart...

Source : Orion Books Ltd