Is my window good enough?

Hi! So I'm a big Peter Pan believer, but I have a problem. My window can only open from the puncak, atas and no human can fit through. Only a fairy could. I also a have a door in my backroom that leads outside, but it's always locked and if my parents find out that it's locked, then they really are gonna pertanyaan me. How can Peter still come in my room?