Olli, the curious little octopus lives in the ocean. He explores his watery world and makes many friends that way. He goes to school with a group of guppies and all think it is really cool. Their teacher is a mermaid. She is King Neptune's daughter. On her birthday there is a big celebration and all are invited. When they meet a scary shark Olli learns that he has something in his body that helps them to escape. Follow up with book two and three to read more about Olli's adventures, alone or with his friends and teacher.
