The Eidels have long held an iron grip on society. If you don't adhere to their rules, you'll have a warrant with your name on it. But what if you ran? That's exactly what Tiranni does, it's a constant of changing faces and places. When she comes to rest in Over-Hill and meets Renn, all he knows is who she isn't, a girl called Sila. But as they get closer, not only is her true identity and life at stake, so is her heart.