Skin by Rick Jasper - Paperback Fiction

It looks like a pizza exploded on Nick Barry's face. But bad skin is the least of his problems. His bones feel like living ice. A strange rash―like scratches―seems to be some sort of ancient code. And then there's the anger... Something evil is living under Nick's skin. Where did it come from? What does it want? With the help of a dead kid's diary, a nun, and a local professor, Nick slowly finds out what's wrong with him. But there's still one question that Nick must face alone: How do you destroy an evil that's inside you?