Resonance, by Chris Dolley

You can't create a world in seven days without cutting corners
Graham Smith is a 33 year-old office messenger. To the outside world he’s an obsessive-compulsive mute – weird but harmless. But to Graham Smith, it’s the world that’s weird. And far from harmless. He sees things others can’t . . . or won’t. He knows that roads can change course, people disappear, office blocks migrate across town. All at night when no one’s looking. The world’s an unstable place, still growing, sloughing off layers of reality like dead skin. One day you drive by, and it's changed.

Annalise Mercado hears voices, all from girls calling themselves Annalise. Sometimes she thinks they’re spirit guides, sometimes she thinks she’s crazy. But then they tell her about Graham Smith, the men who want him dead, and how only she can save him. So begins the story of two people whose lives appear fragmented across alternate realities and how, together, they hold the key to the future of a billion planets. . .

TWO PEOPLE, ONE MYSTERY, A BILLION WORLDS AT STAKE