As long as you set your mind on something and try hard enough, there's nothing you can't do, the teacher declares. At the suggestion of a classmate, Billy tests the assertion by growing horns. To the dismay of his mother, Billy succeeds, but instead of becoming an oddity, he has a chance to be a hero when a burglar enters the headmaster's office. Full of John Yeoman's trademark wit and Quentin Blake's madcap illustrations, this facsimile of the original 1961 edition will delight readers 4 to 8.