Books with title Rocket to the Moon

It's easy to be angry. It's hard to stop being angry and find a way to get along with other people, especially if it's a bully. Jax is a purple goat that is invisible to everyone but Dani. Jax wants to help Frankie get along with Chris, the class bully. But can it happen? Dani doesn't want Nutty Frankie to get in any more trouble. Purple goats can be funny and smart, and sometimes help us to find the right way to do things.