In the village of Zelené údolí strange occurrences began to take place. Luminous spheres would appear out of nowhere illuminating the darkness with their ethereal glow. They seemed sentient moving on their own and leaving behind a trail of sparkling dust. They were mostly seen at night. The villagers were amazed by their beauty but also feared their inexplicable nature often leaving offerings for the spheres. The spheres remained a mystery a source of wonder and awe for the people.