Comet in Moominland: Can Moomintroll save his beloved valley? (Moomins Book 1)

When Moomintroll learns that a comet will be passing by, he and his friend Sniff travel to the Observatory on the Lonely Mountains to consult the Professors. Along the way, they have many adventures, but the greatest adventure of all awaits them when they learn that the comet is headed straight for their beloved Moominvalley.

• Finn Family Moomintroll (Moomins Book 3)
• Moominpappa's Memoirs (Moomins Book 4)
• Moominsummer Madness
• Tales from Moominvalley (Moomins Book 7)
• Moominland Midwinter (Moomins Book 6)
• Moominpappa at Sea (Moomins Book 7)
• Moominvalley in November (Moomins Book 8)
• The Summer Book (New York Review Books Classics)
• Tove Jansson: Work and Love