Hattivattien salaisuudet
- Episode aired May 10, 1990
Moomin and his friends and family spend the night at the Hattifatteners Island and goes on a treasurehunt.Moomin and his friends and family spend the night at the Hattifatteners Island and goes on a treasurehunt.Moomin and his friends and family spend the night at the Hattifatteners Island and goes on a treasurehunt.