The action takes place right in the middle of the Pacific Ocean. You will find some curious characters there, some more curious than others. Diroo, Chaloupe and Pantalon have to find earth to grow magic food to feed children who survived an ecological catastrophe/disaster. The satellite Dreamcatcher identified Ten-wheeled Island as an ideal place for this.

In the course of his travels, Diroo will make fascinating discoveries connected with the traditions of the island's inhabitants. There are numerous obstacles but they reveal as many resources: Diroo's intelligence, her talents and those of her companions, magic food from the Bonminou garden and her friends in the Bopitou forest.

After having passed all the tests, Diroo meets the Bird-Man who reveals to her part of the mystery that this place of legends/legendary place conceals.