Content : Ashvin, Zara, Emilie and Jeremy won a writing contest and thus fly to Reunion Island to participate in an exchange program with a local elementary school. They visit the Meralikan Lime Kiln, a historical site, which was once used to turn corals into lime. At the factory, their magic card sets off a whirlwind and guides them in the footsteps of the formidable pirate La Buse who is said to have hidden his loot on the island ...
At the end of the book, documentary pages on turning corals into lime are available. This practice is now prohibited to protect coral reefs.