"Secret Mermaid Molly sets off with Coral, protector of the ocean reefs, to find the third piece of the enchanted conch shell. With it, they would be able restore the dying tropical reefs and return a host of sea creatures, including a lost baby turtle, to their rightful homes. But first they will have to find a way to beat off a swarm of the Dark Queen's evil jellyfish."--Global Books In Print.

"First published in the UK in 2009 by Usborne Publishing Ltd." -- Back cover. "Molly must venture into the ocean's darkest depths to help find mermaid Pearl's missing shell. They know the Dark Queen's sea snakes are on the prowl... but nothing can prepare them for the discovery that Pearl's shell is inside a huge underwater volcano -- a volcano that could erupt at any time!" -- Back cover.

Dive into this magical mermaid series from bestselling author Sue Mongredien, featuring gorgeously girly illustrations. Synopsis: When Molly is plunged back into the magical Undersea Kingdom, she finds the Merqueen waiting with bad news - the Dark Queen Carlotta is back, and it is she who has been hiding sea creatures away and stealing their powers. Now it's a race against time to track down the animals that are still lost. Hearing a rumour of a strange...

Molly must help her mermaid friend Delphi to find the second piece of the enchanted conch shell in time to prevent a terrible oil spill. Unfortunately, Delphi's shell is guarded by a spiky sea urchin, and the only way they can tempt it away is by bringing it some treasure from a spooky shipwreck, where a great white shark lurks, ready to attack. Can they save the day with the help of some humpback whales?

Molly is called back to the ocean by the Mermaid Queen because the mermaids desperately need her help. All the whales, penguins, turtles, seahorses, dolphins and octopi have completely vanished from the seas and no one knows why - but they suspect dark magic is at work.