|This article is about the Story Library book. You may be looking for the steam engine.|
Molly (later re-titled Molly the Very Special Engine) is the thirty-ninth book the My Thomas Story Library series.
Thomas meets a new engine named Molly, who is sad because she has to take empty trucks. Thomas tries to help by brightning up Molly's load with tarpaulins and lanterns, but his plan backfires. Molly soon learns that sometimes empty trucks can be important.
- Molly's buffers are black when they should be silver.