The dramatic tension comes to a peak - KEY EVENT
1. Scrooge is determined to change his future but the phantom vanishes without reassuring him
2. Scrooge gets more and more agitated towards the end of the chapter - he tries desperately to force the ghost to tell him what will happen, but the ghost says nothing
3. As the drama builds, and Scrooge is holding his hands up "in a last prayer", the action suddenly stops, and the spirit changes into a bedpost. This puts a sudden end to the dramatic tension in the chapter, and leaves the reader wondering what's going to happen next
Writer's Techniques - The chapter ends on a cliff-hanger - we don't know for certain if Scrooge will be able to change his future and sabe himself. This adds tension to the story