I am behind you / John Ajvide Lindqvist ; translated from the Swedish by Marlaine Delargy.

Four families wake up one morning in their caravans, next to their cars, on an ordinary campsite in southern Sweden. However, during the night something strange has happened. Everything else has disappeared, and the world has been transformed into an endless expanse of grass. The sky is blue, but there is no sign of the sun; there are no trees, no flowers, no birds. And every radio plays nothing but the songs of sixties pop icon Peter Himmelstrand. As the holiday-makers try to come to terms with what has happened, they are forced to confront their deepest fears and secret desires, and in many cases expose the less appealing aspects of their character. Past events that they have tried to bury rise to the surface and take on a terrifying phyiscal form. Can any of them find a way back to reality?