In their fifth thrilling adventure, the explorers journeydeep into the Bubble Ocean on their quest to stop the evil Collector, but timeis running out . . .

The Poison Tentacle Sea was home to the powerful BoneCurrent. As they had feared, it gave a sudden surge and pulled them in.

Half-mermaid Ursula Jellyfin has always longed for adventure, and this time thestakes are higher than ever. The Collector is holding a group of childrenprisoner on Pirate Island, and it’s up to Ursula and her friends Jai, Max andGenie to set them free. Armed with a magical mermaid trident, and with newrecruit Zara the pirate fairy on board, their mission is filled with danger.The explorers must face zombie skeletons, make a daring rescue from a whirlpooland travel through a dinosaur graveyard. But even if they do make it to PirateIsland, can they fool the Collector and get in to an impenetrable fort?

Fast-paced, magical storytellin