Sarah White is gorgeous even if she is a little bit rotten. A mirror arrives on her twelfth birthday and she thinks it's the perfect gift, but when the mirror swallows her whole Sarah finds herself in the dead center of the Underworld. Sarah now has to deal with her decaying flesh and sudden craving for brains. By the time Sarah escapes the Underworld, she finds her new zombie life less than appetizing. Even worse, she needs to return to the Underworld to save her friends, Cindy and Scarlet. With a poisoned apple, a crow named Raven, and a glowing necklace, Sarah sets off to rescue her friends. She must succeed, or she'll be a brain-craving zombie forever.