John Ajvide Lindqvist lives in Sweden, and has worked as a magician and stand-up comedian. His first novel, the international bestseller Let the Right One In, was published in more than thirty countries.

Marlaine Delargy is based in the UK. She has translated novels by Swedish writers including Kristina Ohlsson, Viveca Sten and Johan Theorin—with whom she won the CWA International Dagger 2010 for The Darkest Room.