Beautifully illustrated in two colour, this new series from the world of Isadora Moon introduces Isadora's mermaid friend, Emerald! Emerald is learning how to be a mermaid princess, but she doesn't feel like one at all. She's not very good at waving to crowds and royal headdresses just aren't her thing - her hair is toospiky and wild. Emerald's wriggly pet octopus, Inkibelle, doesn't much like living at the royal palace either.

The annual Ocean Parade is coming up. Will Emerald be brave enough to be a mermaid princess but do it her own, special way?