Nela lived in a small house just under a starry sky. She had a special friend - a cat called Robo, who could talk and shone in the dark. One night Nela saw something unusual through the window. A coloured light appeared in the sky, swirling and leaving a long, glittering trail behind it. - 'Robo, can you see it? - she called out excitedly. - I'm sure it's something very interesting! - replied Robo, blinking his eyes like little lanterns. Nela couldn't fall asleep. She decided that she had to find out what this light was. Luckily, her dad was an inventor and there was a small, colourful rocket in the garden. As soon as Dad left for work in the morning, Nela and Robo went inside. - Let's take off! - exclaimed Nela, pressing the green button. The rocket lifted into the air, purring quietly. Nela looked out of the window and saw their house becoming tiny. They flew higher and higher - up to the clouds and then even higher, between the stars. Coloured planets twinkled around them, and Robo muttered a melody that sounded like a cosmic lullaby. Finally, they saw a swirling light in front of them. It was getting closer and closer. The rocket landed softly on a small, unknown planet that smelled like sweet marshmallows. In the middle of it lay a strange, shiny object - it resembled a star, but had colourful stripes and gently rang with every gust of wind. Nela and Robo looked at each other in astonishment. What could it be? Where did it come from? Is there anyone else here? Suddenly, a shadow appeared from behind a large purple stone. They heard a quiet rustling....