The sickness struck everyone over 14. First it twisted their minds. Next it ravaged their bodies. Now they roam the streets – crazed and hungry. 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.