- "It just proves that even a naughty engine like Diesel can be good if other engines are good to him."
- ―The Fat Controller
The day's work is done and the engines are to have a party at the sheds while the Fat Controller holds a party at a hotel near the main station.
Meanwhile, Diesel is stood in a siding all cold and alone and snow is falling down on him. He thinks everyone has forgotten about him, but he is wrong. James says that he is glad that Diesel is on his own after he told stories about him, but Edward says that it is Christmas and that they should feel sorry for him and invite him to the party. The other engines do not agree with him at first, but he persuades them that they should forgive Diesel.
So, Edward and his crew go to look for him. Diesel is pleased to be found and when they return to the sheds, the other engines are all nice to him. Soon they are all fast asleep.
In the end, it proves that even a naughty engine like Diesel can be good if other engines are good to him.
- Sir Topham Hatt
- Thomas (does not speak)
- Henry (does not speak)
- Percy (does not speak)
- Duck (does not speak)
- Gordon (cameo)
- It is very likely that this story was written by Andrew Brenner.
- In the eighth illustration, Henry's handrails are red.
- In the last illustration, James' front bogey wheel is white.
- In the fourth and eighth illustration, Henry is alongside Edward's right, however in the last illustration, Gordon is on Edward's right.
- In one illustration, Duck's face is smaller than it normally is.