L'oiseau perdu

Mouk and Chavapa are in Africa. They must participate to the barter of the Berber camp, but Chavapa does not want to exchange anything they have. Mouk finds a stone with a snail drawn on top, but nobody seems interested....

Mouk and Chavapa are in Africa, with their friend Bouba. Today, they plan to see and record the songs of the birds, but nothing happens as planned: the observation post is ruined. Even though they can hear the whistles, they can't see any birds. Worse, when they return, Chavapa's bicycle has disappeared! What has happened?…