Oliver Wood was walking quietly in the Forbidden Forest when he heard a woman singing incredibly, her voice was calm and soft, he decided to follow her and he found himself in front of a girl who was his age.
She was in a white long nightgown, she had pale skin and long ginger hair that reached her hips and she was barefeet, she was in a small lake that was not really deep, the water only reached her ankles and there was water coming down from a mountain, a waterfall.
There was gray fog and it was like.. Oliver didn't know how to write, he just listened to the girl singing peacefully, soft, calm, she had beautiful vocal cords, it wasn't even a sound he knew, this girl had created a song.
She was chanting while pacing around in the small lake that reached her ankles and the waterfall was the only sound he heard, plus the girl's footsteps and the music she singing, it was magical, you could say, the girl was you.