|This article is about the Story Library book. You may be looking for the excavator, the Talyllyn Railway diesel engine, the cleaner or the former snack bar manager.|
Alfie (later re-titled A Really Useful Engine) is the forty-ninth book in the My Thomas Story Library series.
Alfie loves demolition, but does not like when the others tease him about his size. He soon finds out that being small is not so bad when he saves a family of kittens from a collapsing building.
- Alfie is referred to as an engine on the 2015 cover.