Cloud Puppy--part puppy, part cloud, and all adorable--goes on summer adventures with her friends in this third book in a delightful graphic chapter book series that's Narwhal and Jelly meets The Amazing World of Gumball! Cloud Puppy and her friends start their summer vacation at the local amusement park! When Mossquatch shares he doesn't really like big roller coasters, Cloud Puppy makes it her secret mission to help him overcome his fear. After all, everyone knows roller coasters are fun, not scary! But as Cloud Puppy, Jack, and Berry Rose line up for the biggest roller coaster, Cloud Puppy suddenly feels afraid--even wishing she were sitting out comfortably with Mossquatch. To keep spending time with her friends, she should act like she's still having fun and conquer her fear...right?