At the Observatory, one of the professors tells them that the comet is going to hit the Earth, and gives them the exact date and time that it's going to happen. Realising they only have a few days left, they hurry back towards Moominvalley, noticing that the heat from the comet's approach is starting to dry up smaller streams. In a forest they come across the Snork Maiden being attacked by a poisonous bush. Moomintroll saves her, and she and her brother join them. Further on, they arrive at the sea to find it all dried up. They use stilts to cross it, and the Snork Maiden saves Moomintroll from a giant octopus.