Mush room house escape

Like in a fairy tale, you get into this magical house. However, you do not quite understand why you're here. But there is one idea: first you need to find a way out. Maybe you can help on the street. But this is not so simple. After all, the key is nowhere in sight, and open the door without it is impossible. Try to use different additional items to solve all puzzles and find a way to get out of this house.