Thomas' Trusty Wheels

Thomas' Trusty Wheels is a book in the Engine Adventures series.

Plot
Spencer has to take the Duke and Duchess to Lord Callan’s birthday ball, but Thomas and his friends think there are quicker ways to travel! How many wheels will deliver the Duke and Duchess to Callan Castle?

Characters

 * Thomas
 * Spencer
 * Bertie
 * Harold
 * Sir Topham Hatt
 * The Duke of Boxford
 * Mr. Percival
 * The Duchess of Boxford
 * Annie and Clarabel
 * Rocky
 * Lord Callan

Locations

 * The Duke and Duchess of Boxford's Summer House
 * Knapford
 * Callan Castle

Trivia

 * This book is based on the nineteenth series episode, Two Wheels Good.
 * Rocky was mentioned, despite him not appearing in this episode.