Sixteen-year-old Liam Covington is the only one who sees colorful shadows following him around school. They're brightest whenever someone messes with him. That's why Liam lives by a short code: keep a low profile, stay away from the colors, and don't talk to Kenna Berlin.

But today Kenna saved his life. And he just made enemies with the biggest jock in school. And worst of all, the strange conch shell he brought home from the dunes today is making the colors brighter.