The Hunted by Charlie Higson

The sickness struck everyone over fourteen. 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. It’s like they’re being called towards the capital and nothing is going to stop them…