Tiny Guests (1) Tanoshî Mûmin ikka : Season 1 Episode 6

One day two very small guests arrive at Moominhouse. They bring a suitcase, so Moominpappa knows they have come to stay and builds a small bed. Everybody is dying to know what`s inside the suitcase, which Thingumy and Bob guard day and night. The terrible Groke knows, however, and she is coming to get it.