Tom loved spending his holidays with his grandmother Zosia in a small house smelling of fresh bread on the outskirts of the village. The house was full of old furniture, rustling curtains and intricate carpets that made him want to run around barefoot. But Tom spent most of his time in his grandmother's kitchen - at the big oak table, next to the sideboard that hid thousands of little things. One rainy afternoon, while Grandma was snoozing in her favourite armchair, the boy discovered something intriguing. In the corner of the sideboard was a small drawer that he had never seen before. It was sort of hidden, pressed up against a pile of old cloths and forgotten recipe books. Tom tried to slide it out carefully, but the drawer wouldn't budge. Curious, he looked more closely and noticed a tiny silver key sewn into the lining of the cloth. His heart began to beat faster. He looked over at his grandmother - she was sleeping peacefully. The boy felt like an explorer in an old legend. He slipped the key into the lock, which was so tiny that he could hardly get inside. Suddenly, something clicked quietly and the drawer slid out by itself, completely silently. Inside lay a tangle of coloured threads, a mysterious notebook with encrypted notes and a glass ball in which blue sparks swirled, as if the summer sky was enclosed within it. As soon as the boy lifted the ball into the light, he felt a slight tingling in his fingers, and the kitchen slowly began to change.... The table, the chairs, the cups - everything floated a few inches above the floor and began to dance whirlingly, and a quiet whisper came from the notebook: "Find the next key..." Tom froze with the ball in his hand, looking at the floating furniture and the cupboard door, which had just started to open slowly....