A Girl and her Ghost

Nicole Sawyers refuses to believe in anything supernatural. Not ghosts, not demons, not even angels.
Until things go bump in the night.
Bookshelves falling, mirrors rattling, and clothes vanishing from her closet.
She starts to get worried. Possible scenarios echo in her head.
Nicole is determined to find out the cause of these happenings.
And then wishes she hadn't.

Charlotte Heart died in a car crash. A crash where five were injured and one fifteen-year-old girl died.
Trapped in a world where nobody can see her, nobody can hear her, Charlotte tries to find a way to escape.
Any way.
During one of her adventures, she finds herself in the room of a girl the same age as her, a girl who doesn't believe ghosts could be real.
So, Charlotte decides that Nicole Sawyers could be the key to helping her come back to life.