|This article is about the Story Library book. You may be looking for the engine, the Railway Series book, the 1997 magazine story, the 2002 magazine story, the Random House book or the My Thomas Railway Library book.|
Percy is the eleventh book in the My Thomas Story Library series.
Percy loves playing tricks on the other engines and gets into trouble. He soon proves to be a brave and useful engine when he battles a flood to take some children home from the seaside.
- This book is based on the second season episode, Percy and the Signal and the third season episode, Percy's Promise.
- In 2015, this book (along with five others) was sold as a website-exclusive book pack with a Wooden Railway Percy, except the other books were sold with the engines the books were named after.
- Percy's coal bunker is green.