Gone : this is the way the world ends

In the blink of an eye. Everyone disappears. Gone.
Except for the young:
Teens. Middle schoolers . Toddlers. But not a single adult. No teachers, no cops, no doctors, no parents. And just as suddenly, there are no phones, no internet, no television. No way to figure out what's happened. And no way to get help. Hunger threatens. Bullies rule. A sinister creature lurks. Animals are mutating. And the teens themselves are changing, developing new talents - unimaginable, dangerous, deadly powers- that grow stronger by the day. Its a terrifying new world. Sides are being chosen, a fight is shaping up . Townies against the rich kids. Bullies against the weak. Powerful against powerless. And time is running out: on your birthday , you will disappear just like everyone else.