Have you ever experienced dreams so vivid it seems like you have lived them? Or had déjà vu so strong you're convinced you must have been there before?
For Genna, déjà vu comes almost as regularly as breathing. And that's exactly what Genna thinks she is - regular. A regular schoolkid, with a best friend who teases her for her love of history class, and parents who nag her about homework.
But when a strange boy turns up in her life and starts acting like he knows her, it sets in motion a chain of events that turn Genna's world upside down. Her past is a lot more complicated than she could ever have expected - and her future even more so.
Because Genna isn't regular at all. It's one thing to harbour an ability she could never have imagined - and quite another to realize that the future of humanity rests on her shoulders.
And there are beings out there who will kill in order to stop her