The broken Mupf shell Snorri is excited when he discovers a very rare Mupf shell in Aquarian's room. It would fit perfectly in his own cave, right next to his collection of Viking helmets. But Aquarian doesn't want to part with his shell. What now? In the next moment, Snorri takes it from the shelf and makes a run for it. He just wants to borrow it for a moment, but then the Mupf shell falls to the ground and breaks.

Snorri and the Non-Birthday: Aquarian has a birthday and is celebrating! With algae cake and helmet bashing, with family, friends, and lots of gifts. Snorri is thrilled and would love to celebrate his own birthday too – if only he knew when he was born. "Well," grins the sea boy Aquintos. "No birthday – no cake, no games, no gifts, no party! It's that simple." For Snorri, the fun is over in an instant. Can Aquina and Aquarian cheer him up again?.