The old gentleman picked up the vase, turned it over, and read what was written on the bottom. "Goodness," he said. "How much is it?" Knubbel thought for a moment. "Four euros!" he said quickly. Metteborg wants to give his grandmother a gift for Christmas. But he has no money. Why not hold a flea market? There are so many old and ugly things lying around at home. That's what Metteborg thinks. However, the adults see it quite differently - but unfortunately, the items are already gone...