All of the creatures missing from the magical Underwater Kingdom have been found now, except for the octopuses.
When Molly and Animal-Keeper mermaid Iona track them down they are surprised to find that there are no monsters on guard.
Then a basking shark brings the message that the mermaid palace is under attack from the Dark Queen.
- Format: Paperback
- Pages: 96 pages, illustrations
- Publisher: Usborne Publishing Ltd
- Publication Date: 25/06/2010
- Category: Fantasy
- ISBN: 9781409506409