Emilka's Enchanted Keys

Emilka lived in a yellow house with a red roof at the end of a street. She liked to run barefoot on the grass and listen to the birds singing. One cloudy afternoon, while mum was cooking in the kitchen and dad was reading the newspaper, Emilka noticed something shiny in the corridor. What could it be? - she thought and crouched down. It was an old metal key with a purple ribbon. Emilka had never seen it before. She picked up the key and felt it get very light, as if it wanted to dance in her hand. Was it the key from the cellar? Or from her grandmother's old wardrobe? Emilka set out to find it. First she tried the pantry door - nothing. Then the cupboard door - also nothing. The key didn't fit anywhere. Then the dog Fafik barked and rushed into the living room. He scratches at the floor with his paw and Emilka sees that there is a small, round flap right next to the wall, which she had never noticed before. Emilka's heart began to beat faster. She inserted the key into the flap's lock, and it fit perfectly! She paused, looking at the mysterious door - I wonder what lies behind it? Is it a passage to another world, or perhaps a magic drawer full of surprises? Emilka carefully turned the key. What did she see on the other side?