A Christmas Carol is a classic novella written by Charles Dickens in 1843. It tells the story of Ebenezer Scrooge, a miserly old man who is visited by three ghosts on Christmas Eve. The ghosts show him visions of his past, present, and future, which ultimately leads to Scrooge's transformation into a kinder, more generous person. Tim is Scrooge's clerk, who works for him throughout the story.