Series about Potto and Hilda, who live in their magical question tree with the Bookworms and the Weatherberries. They are joined by their friends Claribelle and Archie. In this episode, a pop up book about farm animals scares Potto. Archie helps him to get over a most unlikely fear - he is terrified of cows. Potto must learn more about cows to help him get over his fears.