Someone pulls a trigger, sets off a bomb, drives a bus full of tourists off a bridge, and what’s left in the wake isn’t just shell casings, wreckage, bodies. There’s something else. Something bad. An aftermath. A recoil. A reaction to all that anger and pain and death.

Maybe, maybe, maybe—and if there were a hundred lives, a hundred Kates, then she was only one of them, and that one was exactly who she was supposed to be. And in the end, it was easier to do what she had to if she could believe that somewhere else, another version of her got to make another choice.

August knew it for what it was, an echo of violence, a mark of sin. Somewhere in the city, a monster lived and killed because of this man, because of something he’d done.

It was a game she sometimes played, ever since she learned about the theory of infinite parallels, the idea that a person’s path through life wasn’t really a line, but a tree, every decision a divergent branch, resulting in a divergent you. She liked the idea that there were a hundred different Kates, living a hundred different lives.

For one, dazzling, infinite moment, August felt like he was standing on a precipice, the end of one world and the beginning of another, a whisper and a bang.