The world of Colony is in ruins. No one knows what caused society to begin tearing itself apart – but the secret may lie with Cora, a girl living on the mountainside far away from others. Cora possesses an extraordinary gift: the power to see back in time, from an event back to its causes. Even more incredibly, sometimes she can change events. But the present is looking for Cora, and she is forced on the run – and must decide who she is, what she can do … and how to fix the future.