Mr Tau and Cold!

Five-year old Kája likes to play most anywhere where water is. And just as his mother dresses him into clean clothes, he is already dirty and his mum has to wash all the time. One day, mummy punishes Kája for his mischiefs and the boy thus decides to run away from home - he takes advantage of mother's momentary distraction and there he is, gone. But it soon begins to rain and the boy hides in the booth by the rafting-yard. There, he discovers Mr Tau, drenched with rain, who has the ability to change into a small man and vice versa with a help of a magic bowler hat. Besides that, he can do a lot of other magic. He wants to help Kája, but his bowler shrank in the rain and lost its effect. He sets off with the boy to take him home, but Kája does not know the address and, moreover, all houses in the housing quarters look the same. In the docks, they board the Nautilus steamboat and go for a trip. The captain of the steamboat calls for the police, which pursues them. But Mr Tau swirls his bowler, which has begun working and can do magic again. The steamboat disappears in the waves, transforms into a sailing boat and sails through the city, landing right under the windows of the flat where little Kája lives.