Muumindani no Suisei

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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Unusual things have been happening in Moominvalley. Moomin, Sniff and Mee leave for the Observatory on the Lonely Mountains to confirm the Muskrat's words: a comet is about to hit Moominvalley and destroy everything. On the way they meet Snufkin, the Hemulen and the Snorks and experience many adventures.

(Source: ANN)