Fossil-hunters Zoe, Jake and Adam find an enigmatic and beautiful stone which drags the children into a whirlpool of adventure. They set out to uncover the truth about the stone. But then the stone goes missing....Follow them into a world of strange and wonderful creatures, the warm hearted nubble-hummocks, the bizarre and hesitant mully-wuzzles and the terrifying Zwaartmoord. Behind the evil lurks Lord Skarn a genius of genetically engineered monsters on a mad quest to destroy and recreate the earth. The very future hangs in the balance...