Hania, Max and Michael had dreamt of a great adventure more than once, but none of them expected it to happen to them during the robotics club at school. Ms Iwona, their favourite teacher, allowed them to stay after lessons and test her latest invention - the Quantum-Bot, a robot that could allegedly receive signals even from distant space. - Can you imagine if we heard a message from aliens? - laughed Michael, turning up the dial on the robot's back. Max looked at the computer screen when suddenly a strange, pulsing code appeared on the display. The signal sounded like a combination of wave noise and bird song. Hania leaned over, her heart beating harder. - This can't be a coincidence! Let's try to translate it! - she whispered excitedly. The robot began to vibrate strangely. A soft, metallic voice came from the speaker: "Come... We are expecting you...". Suddenly, the computer went off and a green light flashed around the young inventors. A sound like someone opening a huge door filled the room. The friends felt themselves floating above the ground. After a moment, they landed softly.... ...on the luscious green grass, under two emerald suns. Beside them, among the colourful flowers, a small, silvery robot waited. In the distance, bizarre buildings were looming - something between castles and flying spaceships. From the depths of the forest, mysterious whispers could be heard. - Where... are we? - whispered Hania, squeezing Max's hand. The silver robot came closer, extended its pincers and showed them something on its panel: "The riddle must be solved before the second sun sets... You only have one chance." And before they had time to ask questions, among the circle of trees appeared....