Els tresors d'en Mus

Mus has a very special guest: his niece Pistachina is going to stay with him for a few days. He wants everything to be perfect: she does the shopping, sets up a small library for him with his favorite books and prepares a little corner for him to paint. But he soon discovers that the only thing that interests his niece is bathing in the beach, over and over again. Mus doesn't get it... but isn't there anything Pistachina is interested in? Yes! Participate in a flea market that is held just on those days. That's when Mus shows Pistachina a very special secret place: the attic. Boxes, boxes and more boxes. The memories of Mus and his family, for generations... Will they find something to participate in the market, and show Pistachina that there is life outside of water?