#1 International Bestseller
"Extraordinary" — Simon Mayo, BBC Radio 2
"Will thrill and delight ... a terrifically well-observed, haunting and occasionally harrowing read" — Starburst
"What sets this novel apart is Walker’s extraordinary emotional articulacy" — The Sun
"A page-turning thriller with a pace as relentless as the characters’ feet hitting the pavement." — Laura Lam, author of False Hearts
"Ridiculously gripping straight from the start" — Jenny Colgan
The ultimate race against time thriller
When the world ends and you find yourself forsaken, every second counts.
No one knows this more than Edgar Hill. Stranded on the other side of the country from his wife and children, Ed must push himself across a devastated wasteland to get back to them. With the clock ticking and hundreds of miles between them, his best hope is to run — or risk losing what he loves forever.