Twelve Happy Engines was a related booklet of The Railway Series published by Nestlé in conjunction with Kaye & Ward. Pictures supplied from Nestlé chocolate wrappers were meant to be cut out and stuck into the booklet.
In the prologue, Awdry explains how The Railway Series came into creation, and how Thomas was introduced into the second book. There is also brief character profiles on Edward, Henry, Thomas, Toby, Douglas, Daisy, Skarloey, Sir Handel, Duncan, Bill, Bert and Culdee.
Characters
- Thomas (does not speak)
- Edward (does not speak)
- Henry (does not speak)
- Toby (does not speak)
- Douglas (does not speak)
- Bill and Ben (do not speak)
- Daisy (does not speak)
- Skarloey (does not speak)
- Sir Handel (does not speak)
- Duncan (does not speak)
- Bert (does not speak)
- The Fat Controller (does not speak)
- The Thin Clergyman (does not speak)
- The Fat Clergyman (does not speak)
- Wilfred (cameo)
- Alaric (cameo)
- Henrietta (cameo)
- Agnes (cameo)
- Culdee Fell Railway Coaches (cameo)
- JTK 62 (cameo)
- Gordon (mentioned)
- James (mentioned)
- Percy (mentioned)
- Donald (mentioned)
- Culdee (mentioned)
- Rex (mentioned)
- Mike (mentioned)
- George (mentioned)
- The Thin Controller (mentioned)
- The Owner (mentioned)
- The Small Controller (mentioned)
- Saint Machan (mentioned)
- The Naughty Boys (mentioned)
- Godred (mentioned; not named)
Goofs
- Alaric is mistaken for Culdee.
Gallery
Back cover
Instructions #1
Instructions #2
Edward
Henry
Thomas
Toby
Douglas
Daisy
Skarloey
Sir Handel
Duncan
Bill
Bert
Culdee