The Hunted (The Enemy Book 6)

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 . . .