Fear

Read Fear Storyline:

It's been one year since all the adults disappeared. Gone.
Despite the hunger and the lies, even despite the plague, the kids of Perdido Beach are determined to survive. Creeping into the tenuous new world they've built, though, is perhaps the worst incarnation yet of the enemy known as the Darkness: fear.
Within the FAYZ, life breaks down while the Darkness takes over, literally—turning the dome-world of the FAYZ entirely black. In darkness, the worst fears of all emerge, and the cruelest of intentions are carried out. But even in their darkest moments, the inhabitants of the FAYZ maintain a will to survive and a desire to take care of the others in their ravaged band that endures, no matter what the cost.
Fear, Michael Grant's fifth book in the bestselling dystopian Gone series, will thrill readers . . . even as it terrifies them.