At age six, Zoe Hirsch enters a room and suddenly feels she is disconnected from reality, as if she's in a dream. As she grows older, these incidents occur more often, and at some point she hears a voice warning her that an attack is about to happen. The voice, which she names the Destroyer, is almost as terrifying as the attacks, themselves. By age nine, Zoe is a gifted pianist, but she is afraid to perform in public or become too close to anyone,...