Lightningstorm

Felicity and her mother live in a town that isn't on the map. No one ever speaks of it, and as far as she knows, they've never heard of it. But on September 5th, Felicity's 17th birthday, she is told of the Lightngstorms.

The Lightningstorms are evil, demon-like forms of the people they know, and it is their job to fight them off. Every person in her town is assigned a Lightningstorm when they come of age-17.

Suddenly, Felicity knows- The reason her town is unknown is because no one's ever made it out alive.