Bingo! … that is why Charles Dickens wrote A Christmas Carol as a series of ghosts that visit Scrooge … it was a tradition of story telling of retelling scary ghost stories during the longest day of the year … the moment in the year known in pagan religion as the moment in the year when the dark forces are at their strongest and highest … the winter solstice, the longest night of the year when the darkness is at its strongest … but also a moment of hope, as the light has started to return and the days grow longer.