A world of ghosts -- Ghost story: the ghosts at the palace -- The causes of ghosts -- Ghost story: the most haunted house in England -- Poltergeists, the noisy ghosts -- Ghost story: the Baltimore poltergeist -- Talking to ghosts -- Ghost story: the table-tapping sisters -- Ghosts on camera -- Ghost story: house of horrors -- Ghostly lights -- Ghost story: the black cat of Killakee -- Hunting for ghosts.