Zosia was seven years old and loved looking at the night sky. Every evening she would take out her little telescope and count the stars. One time, as she was gazing at the glittering dots, she felt someone watching her. She looked down and saw her best friend - a little yellow robot she named Wheeler. Circle could spin very fast and made funny sounds when he was happy. One night, Sophie and Wheeler decided to build their own rocket! With Daddy's help, they glued boxes together, glued shiny foil wings and fitted lots of buttons and lights. Soon the rocket was ready for take-off. When midnight struck, Zosia and Wheeler got in, put on their helmets and.... 10, 9, 8... took off! The rocket flew higher and higher. First they passed the moon, then they saw the red Mars, and further on, the big blue nebula. Everything was beautiful, but they were most interested in a small, purple planet with green clouds. They decided to land there. As they touched the surface of the planet, they heard a quiet buzzing. They wheeled through the mud and came to a sudden stop right next to a strange sign. Painted on the sign was a smiling creature with three eyes. Glowing flowers were growing all around and funny squeaks were coming from the bushes. Zosia and Wheeler looked at each other. "Who lives here?" - Zosia asked in a whisper. Just then something small, round and colourful slid out of the bushes.... And then something so unusual happened that Zosia held her breath!