The others had promised that the countryside would be safer than the city. They were wrong.
Now Ella's all-alone except for her silent rescuer, Scarface - and she's not even sure if he's a kid or a grown-up.
Back in London, Ed's determined to find her. But getting out of town's never been more dangerous- because coming in the other direction is every SICKO in the country.
It's like they're being called towards the capital and nothing is going to stop them...