Basia loved to take walks in the forest that grew right behind her house. She was always accompanied by her kitten Mru, who loved to bush around among the leaves. One afternoon, when the sun was shining brightly, Basia noticed something under the Old Oak that had never been there. There was a small, shiny box lying under the tree. Kitten Mru immediately ran up, waved her tail and started sniffing the lid. Basia crouched down and gently touched the box. Suddenly they heard a quiet sound, like music, and something began to flicker around them. At the same moment, luminous butterflies appeared around Basia and Mru and the smell of sweets filled the air. A quiet voice came from inside the box: "Whoever dares to enter the magical world must be ready for an adventure!" Basia looked at the kitten and the kitten looked at Basia. Would they open the box and discover what was hidden inside?