Poison in the Darkest Shadows

Ellie has grown up in a world of good ghosts that try to protect the humans who persecute them. She has incredible abilities in hand-to-hand combat and is training the ghosts to defend themselves so that they can continue helping humans. Ellie is sure she has everything figured out until one day Ellie finds a girl in the basement, bound with shackles and a clan meeting where her future is decided for her. Ellie befriends this girl. As time goes on, Ellie questions everything she ever knew. How did she end up with the ghosts? How did she get her abilities? And the biggest question, are the ghosts good or evil?