They call it the Sickness. Nobody knows what causes it or where it comes from. Nobody knows why it only seems to affect the adult population. But everyone knows that if you catch it and you're over 18, you die. All around the world, teenagers like Travis, Richie, Mel, Jessica and Simon, find themselves thrown together and forced to cooperate. But a world without rules is not the utopia many survivors thought it would be. Everything, now,...