Mouk and Chavapa are in Madagascar. It's Christmas and so they have to call Popo and Mita. They have a "Challenge for best decoration". Before Mouk and Chavapa left for their trip, they'd agreed that they'd have to put up the best Christmas decorations, wherever they were in the world on the twenty fourth of December. But Chavapa is very upset because they don't really celebrate Christmas in Madagascar, and they don't have Christmas decorations... How are Mouk and Chavapa going to do to keep their promise?
Mouk and Chavapa are in Brazil. They help their friend Miguel to find his sheets of music so he can play clarinet with his Uncle Sergio, a great bossa nova musician.
Mouk and Chavapa are visiting their friend Tucson and his Mum, who is working in Utah. Her job is to make special resin casts - copies - of the dinosaur footprints. Chavapa, who is fascinated by dinosaurs, wants to see the resin casts. But Lucy, Tucson's lizard, escapes, and everybody sets off to look for her. How are they going to find her?