'The trouble started on the morning of Trumpet's first birthday, when a bump began to grow at the top of his forehead.' Until this moment, Trumpet has always been one of the gang. But when his forehead suddenly begins to sprout a horn, he finds himself isolated from the other horses. He is suddenly clumsy, getting his horn caught in trees and accidentally poking other horses in the eye. Trumpet is laughed at and then abandoned, and feels miserable for being so different. One day, however, fire breaks out in the barn and Trumpet is the only one who can lift the door lever - by using his horn! He saves the day and everyone realises that being different is SUPER! And this is only the beginning of Trumpet's story...