The book, ‘The Journey to Atlantis’ describes the journey of five mice who set on a voyage in the ocean. It was when Paulina was basking in the beach in the vicinity of the Mouseford Academy, that her attention is drawn to a very charming yet mysterious boy with a blue tinted skin. The boy was at the shore. The Thea sisters proceeded towards the boy in an attempt to talk to him. However, the unfamiliar language that he spoke in left all of them startled and they were all curious to know more about him. With no delay, they contacted Thea Stilton. Curious and excited herself, Thea arrives at the location and collects her mouselings and begins her new adventure; to try as hard as she can to find the whereabouts of the blue skinned boy.