Beyond the walls of the small village of Mythen Rood lies an unrecognizable landscape. A place where overgrown forests are filled with choker trees and deadly seeds that will kill you where you stand. And if they don't get you, one of the dangerous shunned men will.mKoli has lived in Mythen Rood his entire life. He believes the first rule of survival is that you don't venture too far beyond the walls. He's wrong.

The Pandominion: a political and trading alliance of a million worlds–except that they’re really just the one world, Earth, in many different realities. And when an AI threat arises that could destroy everything the Pandominion has built, they'll eradicate it by whatever means necessary, no matter the cost to human life.

Multiverse travel is finally possible, but there’s just one catch: No one can visit a world where their counterpart is still alive. Enter Cara, whose parallel selves happen to be exceptionally good at dying—from disease, turf wars, or vendettas they couldn’t outrun. Cara’s life has been cut short on 372 worlds in total. On this dystopian Earth, however, Cara has survived. Identified as an outlier and therefore a perfect candidate for multiverse travel, Cara is plucked from the dirt of the wastelands.

Fellside is a maximum security prison on the edge of the Yorkshire Moors. It's not the kind of place you'd want to end up. But it's where Jess Moulson could be spending the rest of her life.

Melanie is a very special girl. Dr. Caldwell calls her "our little genius". Every morning, Melanie waits in her cell to be collected for class. When they come for her, Sergeant keeps his gun pointing at her while two of his people strap her into the wheelchair. She thinks they don't like her. She jokes that she won't bite, but they don't laugh. Melanie loves school. She loves learning about spelling and sums and the world outside the classroom and the children's cells. She tells her favorite teacher all the things she'll do when she grows up.