What a disappointment! Returning to the jungle to learn of the Marsupilamis' latest adventures, the authors of this volume discover: The Marsupilamis' nest is empty, and the entire family seems to have left for an unknown destination! But luckily there are the Chahutas, who urge the authors to make up nice stories about the "Marsupilcoatl", thus delighting the whole village. In the meantime, after a long journey, the Marsupilamis arrive on the shores of Lake Harum-Bayac - where they are already expected...