Zilly, the witch, is very curious about what a Triceratops might have looked like in real life. Together with her cat Zingaro, she loves to visit the museum and check out the hall with the dinosaur skeletons. One day, the museum staff holds a contest: Who can paint the dinosaur that looks the most realistic? Without hesitation, the adventurous Zilly sets off on a field study. She waves her magic wand – and suddenly, the horrified Zingaro finds himself face to face with a huge, real dinosaur.