Spinner. The Healer Chronicles, #1

Fifteen-year-old Alex is called a spinner. His friends are called dummies. Two clandestine groups of humans want his power. And an ancient evil is stalking him. If people weren't being murdered, Alex might laugh at how his life turned into a horror movie overnight. In a wheelchair since birth, his freakish ability has gotten him kicked out of ten foster homes since the age of four. Now saddled with a sadistic housemother who uses his spinning to "fix" the kids she injures, Alex and his misfit group of learning disabled classmates are the only ones who can solve the mystery of his birth before more people meet a gruesome end. They want to know who murdered their beloved teacher, and why the hot young substitute acts like she's flirting with them.
Then there's the mysterious medallion that seems to have unleashed something evil, and an ancient prophecy suggesting Alex has the power to destroy the world. Friendships are tested, secrets uncovered, love spoken, and destiny revealed. The kid who's always been a loner will finally learn the value of friends, family, and loyalty. If he survives. The Healer Chronicles Begin...