While Thomas befriends the new steam engine Belle, Percy makes friends with the diesel engines at the dieselworks, and it causes tensions to flare in the town of Sodor.
- ISBN10 0375867996
- ISBN13 9780375867996
- Publish Date 9 August 2011
- Publish Status Out of Stock
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Paperback (US Trade)
- Pages 24
- Language English