They'll chase you. They'll rip you open. They'll feed on you...When the sickness came, every parent, policeman, politician - every adult - fell ill.

The lucky ones died. The others are crazed, confused and hungry. Only children under fourteen remain, and they're fighting to survive.

Now there are rumours of a safe place to hide. And so a gang of children begin their quest across London, where all through the city - down alleyways, in deserted houses, underground - the grown-ups lie in wait.

But can they make it there - alive?