How cool is that? Conni's class is planning a very special museum visit - with an overnight stay in a Stone Age cave! Before going to sleep, there's a flashlight tour of the museum. All the other visitors have long since left the building. Anna, who had to come along whether she liked it or not, is in a bad mood. And even though the lights are still on everywhere, she is overly anxious - even when the children are happily picnicking in the cafeteria for dinner. Only when the tour begins do the lights get dimmed. At that point, Conni starts to feel a bit uneasy too. But the museum educator leading the tour is so nice and does such a good job that even Anna forgets her fear for a moment. She talks about nocturnal animals and how they find their way in the dark. Conni and her classmates become owls, bats, and desert foxes... and none of them are afraid.