It all started with a creaky old step in the attic. Amelia had always dreamed of great adventures, but she didn't think one would start right above her head. One rainy afternoon, as she sought refuge from boredom, she found a small door with a carved inscription under a pile of boxes: "Imaginative Entrance Prohibited .... unless you dare!" Without thinking, she turned the key, which by some miracle was lying next to it on a dusty shelf. There was nothing on the other side of the door - just a staircase leading upwards, although it seemed that the attic ended right there. Amelia drew in a deep breath and began to climb higher and higher, with hundreds of skylights swirling around her. Suddenly the stairs broke off and she stood on lush, fleshy grass, and before her stretched a sky-garden - a garden that floated on clouds! Everything here was different from her garden in front of the house. Large puffballs reached over her head, and candy trees sprouted from the beds. Little glow-winged foxes and butterflies with wings shimmering like a kaleidoscope glided along the paths. Amelia also noticed cottages made of upcycled leaves, as if someone had taken up residence here forever. Suddenly she heard quiet laughter and felt she was being watched. Shadows flicked among the flowers and a small figure with blue hair and dragonfly wings emerged. "I've been waiting for you, Amelia," she said quietly. "There is only one problem... Someone has stolen the heart of the garden and if we don't find it, everything will disappear!" Amelia looked at the stranger in astonishment, and then glanced at the path leading to the mysterious labyrinth.... What should she do? Will she find the courage to plunge into the depths of the sky garden and discover its greatest secret?