Take your ticket for Troy's first world exhibition and troll pavilion! The khalif Hopéïdemerfeil reigns over the city of Hogdad, the jewel of the Delpont, but the new city lacks fame. To give it the radiation it deserves, the khalif organizes a universal exhibition and a painting contest open to all and whose first prize is the hand of Princess Petypoi. She chooses the theme: "Paint a troll". But they don't want to be painted...