Letting off Steam!

Letting off Steam is a magazine story.

Plot
Percy startles everyone with his steam. Thomas has an idea and asks Daisy to help. Together they both startle Percy, who promises, that in future, he won't play silly games.

Characters

 * Percy
 * Thomas
 * Oliver
 * Gordon
 * Duck
 * Daisy (does not speak)
 * Henry (does not speak)

Goofs

 * Henry's splashers are incorrectly coloured blue.
 * It is said that Daisy startled Percy with her whistle, but diesels have horns, not whistles.