Mouk and Chavapa are in Crete. Cassandra is going to sing in a festival in the afternoon. Unfortunately, she breaks her xylophone and can't sing without it. Mouk and Chavapa are going to do whatever they can so that Petros can repair it in time.
Mouk and Chavapa are staying with their friend Amaruk in Canada. They go ice fishing but everything is so white they have trouble going back to the village...
Mouk and Chavapa are in Tibet. Their friend Pasang teaches them to milk a yak, but Chavapa seems better at it than Mouk, whose hands are too cold. After pouring the milk in a leather bag, they set off to take it to Pasang's uncle, who needs it that day... But the village is far and the three friends have problems getting there...
