Kasia and her younger brother Michal had always been curious about the world, but that morning, when they ran to the old forest behind the town on their bikes, they were not expecting anything out of the ordinary. However, instead of the usual trees, just over the familiar hill they saw something they had never seen before - the trees glowed with a pulsating blue light and their branches were as if woven from thin wires. On the ground were strange, shiny acorns that popped up when touched. - 'Michael, that's definitely some kind of art installation,' whispered Kasia, although she wasn't sure herself. With every passing moment, the forest seemed to get weirder and weirder, as if it reminded them of something forgotten. Suddenly, a quiet electronic sound came from deep in the trees. Michal looked at his mobile phone - the screen was flashing, although it had been discharged earlier. - Can you hear it? - He asked frightened. Tiny mechanical butterflies began to fly from above the siblings' heads. Their wings reflected light, creating colourful reflections. One of the butterflies sat on Kasi's shoulder and suddenly spoke with a whisper-like voice: - Help us... Something big is coming... The forest needs you... Kasia looked at Michael with wide eyes. The butterfly melted into the air and the ground beneath their feet trembled. An unknown light flashed in the depths of the quantum forest, and something huge began to emerge from the darkness....