The Moomin family are happy and amicable round little creatures who live with their friends in the idyllic Moominvalley in harmony with nature.
One magical June the mountain near Moominvalley awoke and started breathing fire and the peaceful Moominvalley got flooded. Moomins were forced to find a new home. They got lucky and stumbled upon a floating house, a very unusual house at that, which served as a theatre before the flood. In that theatre house the Moomin family will sail into the Midsummer Eve which is full of twists and magic, new friends and enemies. Moomins will get answers to many questions about life and gain new experiences they couldn’t have even imagined before – they will even perform a real play.

Tove Jansson is one of the most original and most respected children’s book’s authors of the 20th century. She wrote and illustrated nine novels about the Moomin family which have been translated into more than 50 languages and are today considered the classics of children’s literature. In this novel the warm and generous world of Jansson’s fiction and illustrations depicts the power of nature and shows how dangerous and extraordinary things can happen to anyone in life, but Moomins face them bravely, with a positive attitude and a lot of humour. They are clever and generous little creatures who do not give up. All newcomers are welcome into their world because they consider every being as precious, and love, friendship and a positive attitude are the greatest treasures in life.