Billy is mad about cowboys. He wants to be a cowboy when he grows up. One day, his friend Alf, the milkman, gives him a magic bottle of milk that makes his dreams come true - well, sort of. Billy turns into Cow Boy - part cow, part boy! He can use his tail as a lasso, and squirt milkshake from his pistols. With his new-found cool skills, Billy is a top crime-fighting superhero! These are beginner reading books for children who have been learning phonics in school. Fun, exciting superhero adventures, ideal for building confidence. Special 'Superhero Secrets' puzzle pages help build comprehension skills.