Moomintroll is cheerful and chubby and lives in the magical
Moominvalley with his mother, Moominmamma, his father, Moominpappa
and all of their friends. Throughout the winter the Moomins
hibernate, but before they go to sleep they fill their tummies full
of pineneedles. In spring they wake up, ready for their fun-filled
summer adventures. This is the story in which Moomintroll finds a
big hat - a magical Hobgoblin hat, no less.