Mercy O'Connor is becoming an angel. She can feel her wings sprouting from her shoulder blades. They itch. Sometimes she even hears them rustling. And angels don't need to eat. So Mercy has decided she doesn't need to either. She is not sick, doesn't suffer from anorexia, is not trying to kill herself. She is an angel, and angels simply don't need food. When her parents send her to an eating disorder clinic, Mercy is scared and confused. She isn't...