This is inspired by the poem from interstellar, though this is a harry potter fanfic. I don't own anything apart from OC. This is based on the MOVIES not books.
Prologue:
Have you ever looked up at the sky at night and just let your thoughts run wild. Whether that be at home, at school, in the city, in a tent, wherever you are, you are always looking at the same sky.
Me and my sister met under the moon, her name was Luna and mine, mine was Nova, and we loved each other to the galaxies and beyond. We always met under that moon, at that spot for years.
We could do things, stuff that no one else could explain. Make light appear in our hands, send a shooting star into space and fly, fly high into that night sky.
"Mummy always said I would find my place. That I would find something I was good at, and nobody could say otherwise. I found that, with you. In the sky every night no matter what. There is a place, with a castle, full of students and teachers. That's where I am going, and I want you to come too." Luna had said one night, flying in the canopy.
At that castle we would meet every night, at a tower and fly away with each other holding hands, one the house of blue, one the house of red. No matter what always together.