It's getting hotter and hotter in Moominvalley, and all the creatures have taken note of the troubling weather. After a mysterious cloud appears in the sky, an exodus begins. When they realize the cloud is a comet, Moomin, Little My, and Snorkmaiden decide to leave home too. Between a tidal wave and a comet-struck Moomin, the end does seem nigh, but the day may yet be saved. The whole family can enjoy Jansson's satire on true concerns about future...