Tove Jansson was born in Helsingfors, Finland, in 1914. Her mother was a caricaturist who designed 165 of Finland's stamps and her father was a sculptor. She studied painting in Finland, Sweden and France, and subsequently became a book illustrator. Her extraordinary illustrative style is seen as a design classic the world over. Originally written in Swedish, the Moomintroll books have been translated into 34 languages and adapted for television, film, radio and opera. Tove Jansson lived alone on a small island in the gulf of Finland, where most of her books were written. She died in 2001.

The Moomin family and their friends are the delightful creation of Tove Jansson, and are full of a particular humour and magic that has enchanted generations of children and adults alike. In this new adventure, Moomintroll is bursting with excitement - the sun is out and he and Little My and all the Moomins are sailing to Lonely Island to look for treasure. But there is so much to do beforehand that by the time they are ready, night has fallen. Will they find treasure by the light of the moon?