Now in paperback, a first-rate horror story by the bestselling author of the Last Apprentice series Fifteen-year-old Billy guards a castle prison. But it isn't just criminals he's guarding—the ghosts of executed prisoners haunt the place. When Billy is given the task of feeding the prisoner in The Witch Well, a ghost named Long-Neck Netty decides to play a trick on Billy during the feeding...a trick that could cost Billy his life. Lavishly filled with black-and-white illustrations.