A collection of four stories chronicling the adventures of several railway engines.

Uses cutaway schematic diagrams and comprehensive explanations to introduce young readers to the elementary principles of how steam locomotives work and can be repaired.

Two new mischievous engines, Bill and Ben, are introduced to the Fat Controller's Railway, and BoCo the diesel is a newcomer too, and how useful he proves to be.

A collection of four stories chronicling the adventures of several railway engines.

Flying Scotsman visits the Fat Controller's Railway and Henry is jealous because he has two tenders. Duck makes Henry look silly, but it is Henry who rescues the passengers when the other railway and Duck's Branch line gets a new name.