Danah's eating disorder has a personality - it's a demon she calls Ed, the voice in her head that undermines her self-esteem and her perception of the world. How can she explain that even when she tries to develop healthier eating habits, there is a demon wriggling inside her mind, determining her every step? The eighteen-year-old author of this novel for teens brings her own journal entries to life, revealing the mental anguish of a teen suffering with anorexia and the terrifying grip the disorder holds on her.