In a certain colourful town lived Mr Frederick. He had a beard like candyfloss, glasses like saucers and.... the strangest hat in the world! The hat was huge, checkered, with feathers and a bell that rang whenever Mr Frederick sneezed. But this was no ordinary hat. Sometimes in the morning it contained biscuits, sometimes a feather and once even a little frog! One sunny day Mr Frederick went to the park with his hat. He was sitting on a bench and feeding the pigeons, humming a funny song under his breath. The hat suddenly started to shake. - What are you doing there? - Mr Frederick asked and glanced under the brim. At that moment the hat jumped up and.... began to retch loudly! On the bench next to him sat a girl called Zosia. She stared wide-eyed at the laughing hat. - He's laughing like a frog! - she said. But that was not the end of the surprises. The hat suddenly flew up, did three flips and.... hovered on the branch of an old tree. Mr Frederick, Zosia and all the pigeons in the park looked up with open mouths. What would happen if the hat fell? Will something even more funny jump out of it? And then a mysterious: "CUM-CUM!" came from the hat....