Molly returns to the Undersea Kingdom to help Animal-Keeper mermaid Leila find the missing whales. When they investigate they find the whales trapped inside a lobster pot but before they can set the whales free Molly and Leila are attacked by the Dark Queen's menacing mud monsters.

 

This is volume 11 in The Secret Mermaid .

There are 96 pages in this book. This book was published 2010 by Usborne Publishing Ltd .

Sue Mongredien has written many books for children of all ages, including the incredibly fun series called 'Frightful Families' for Orchard Books. She lives in Brighton.