The poverty stricken Reds are commoners, living under the rule of the Silvers, elite warriors with god-like powers. To Mare Barrow, a 17-year-old Red girl from The Stilts, it looks like nothing will ever change.
Mare finds herself working in the Silver Palace, at the centre of those she hates the most.
Mare Barrow’s blood is red — the color of common folk — but her Silver ability, the power to control lightning, has turned her into a weapon that the royal court tries to control.
The crown calls her an impossibility, a fake, but as she makes her escape from Maven, the prince — the friend — who betrayed her, Mare uncovers something startling: she is not the only one of her kind.