This is a dream I had last night. As soon as I regained enough consciousness to call out to my Mom, I did. I proceeded to tell her all about it in a very groggy, half-awake fashion. Now here it is in more detail and in bigger words. If you like Harry Potter, dreams where you're flying and magical things...read on.
Twin Sister Orphans Escape from Rose City
Two orphaned sisters reside in Rose City. It is named this because all the buildings constructed are from a color of brick that is a faded red and sometimes almost pink. There are castles and towers and the orphanage and school is conjoined and is a cross between Hogwart's and a fairy tale princess' castle. There aren't any roses in Rose City. There is barely anything beautiful at all to the girls living there. To ensure that they don't escape, the entire city has a tall brick wall surrounding it. Everything is covered in red brick dust. Only adults are allowed to leave and return and the whole city must be aware of their departure. They are nervous that someone might try to sneak one of the orphans away to the outside world. I wouldn't say they are in the same shape as Annie was. They're just sad because they are orphaned and cannot leave the position. Someone adopts them from inside the city since there aren't any outsiders allowed.
The two orphaned twin sisters look like this:

They have it rougher than other girls at the orphanage. There is a professor there, and while it is an all-girl's school, there are male professors and those of higher authority. There is one who has taken particular interest in the girls for less than pure reasons and most of his time is spent trying to get them alone in his office or to harass them and find ways to get them in trouble. They have a poor reputation because of this teacher though it is one constructed of lies. They are very miserable and traumatized by the molestation and abuse that takes place. Since they live there with him, they are in constant fear and oppression. This is him:

His assistant aids him in getting the girls alone and acts as his spy. He looks like this:

One day the sisters are walking to the edge of the forest, hands clasped, long dusty dresses blowing in the wind, hair in two braids each. On the other of the forest is the brick wall. They look up at the sky and both see a bird, flying to where it pleases, free on the breeze. 'I wish we could be that way', remarks one sister. The other one's feet rise, shakily, a few inches from the ground. The sisters are speechless and astonished. 'If we have the will...maybe...' and she begins to rise. The will become so strong in the sister older by only a few minutes that she rises feet off of the ground. Her hand pulls and breaks away from her sister, who was only able to manage a few inches.
Soon she is effortlessly hovering above her sister, arms spread, twirling in the air. She giggles and motions for her still-speechless sister to join her. She begins to wish more than anything that she could fly far, far away from this place without any roses and it's very deceiving name. She never wants to be touched by the man with the long black robes again. He's a monster to her. She begins to rise. She floats up and grasps her sister's hand again. They begin to squeeze each other's hands very tightly, harnessing enough energy to take off into the horizon.
One day shortly after, they decide to come back and visit. Just to see it once more. To suspend high up in the sky and enjoy their freedom. As they are flying, the younger sister thinks she sees the robed man's face in a window. Memories begin flooding back and she loses her energy. Her sister flies on without her, while her mind is lost in the depths of her past. It isn't until her feet touch the dusty grass that she notices. Her sister is gone.
Another girl comes along and tells her that they've missed her. They all want to know, some with genuine curiosity, some with dangerous jealousy, how they escaped. This girl says that she's seen them. She knows. She looks like this:

She tells the younger sister to remember, not in terrible, heavy misery the burdens of her past and let them take the magic from her. She's tells her to remember them and use them as fuel, as magic, glistening faerie dust. Just then, they see an entire flock of orphaned girls fly overhead and on brooms. Now, they're not witches, but they have seen powerful young women with the ability to fly in story books. They are merely imitating them. The younger sister tells the girl she needs the energy of another to fly. The girl takes both her hand sand squeezes them. They smile playfully at each other as they begin to rise right in time to join the girls in the air. They give them brooms and the sisters and reunited.
This music plays: