As you already know, Billie is the protagonist of this cool musical adventure. She is a lovely goat who has a thrilling mission. The heroine is trying to find clues to some secrets. Even with the support of her friends, a fox and an axolotl, it is a real challenge! A lot of opponents are setting obstacles on their way. Barnaby is one of them. It is a ghost owl that lives in his own castle. Once, he will even try to kill the goat but with no success. Do you want to know more? Welcome to his scary castle.