Enter a world of mermaid royalty, dolphin communication, and magical mystery.
 
Princess Henrietta, a beautiful mermaid, loves collecting pets, but when she takes in a knobbly-kneed creature, she doesn’t realise what it could cost him.
 
On land, Maia is excited to spend her holidays with her marine biologist father, where she discovers her ability to communicate with dolphins. It comes with a responsibility she never imagined. As she tries to understand her gift, her best friend, Jude-the-sleuth, investigates a boy's suspected drowning, trying to uncover an elusive truth. With time running out, Maia must make a courageous choice, or someone will be in grave danger.
 
Join Maia and her dolphin friends on an enchanting journey filled with mermaid magic and mischief.