And for inspiration I must acknowledge William Gibson’s Neuromancer for its dead channel sky; Steven Moffat’s Doctor Who episode ‘The Empty Child’ for its terrifying image of WWII gasmasks; Star Trek for its communicators; and the terrific YA anthology, Zombies vs Unicorns, edited by Justine Larbalestier and Holly Black - after reading this anthology I had to have both zombies and unicorns in Garners’ Challenge.