Lenka was very fond of the circus. When the Gold Star Circus came to town, she was the happiest girl in the world! The colourful balloons, the laughing clown Bimbuś and the merry animals made everything around look magical. After the show, Lenka saw a small, mysterious box backstage. It was decorated with gold stars and had a big padlock. Next to the chest stood Captain Feather's parrot and shouted: "Only the brave will know the secret of this chest!" Lenka felt her heart beat faster. She looked around - Bimbuś the clown winked at her in agreement. Suddenly, the padlock began to move gently, and a quiet laugh and a flash of coloured light came from inside. Lenka took a step forward, held out her hand to the box.... And then - something strange began to happen!