Culdee is a book in the My Thomas Story Lirary series.
Sir Handel is fed up with the old coaches he calls "cattle trucks" and says they should be scrapped. Skarloey tells him that he doesn't live on a mountain railway, one which climbs mountains. Sir Handel doesn't believe him and Donald arrives with Culdee, an engine with backward cylinders and a tilted boiler.
- Shane Dooiney
- Sir Handel
- This book is based on the Railway Series story Mountain Engine from the book Mountain Engines
- Donald is said to have dieseled to the siding where he put the flatbet carrying Culdee.