The Number One Bestseller and featured on Simon Mayo's Radio 2 Book Club THE ULTIMATE RACE-AGAINST-TIME THRILLER. When the world ends and you find yourself stranded on the wrong side of the country, every second counts. No one knows this more than Edgar Hill. 550 miles away from his family, he must push himself to the very limit to get back to them, or risk losing them forever. His best option is to run. But what if your best isn't good enough? An original and powerful post-apocalyptic thriller, perfect for fans of The Martian.