Bio: an 18-year-old woman with the ability to transform into monsters from the Nightmare Realm.
She discovered this when being attacked by her caretaker, soon after she moved to Salem with him. Unfortunately the monsterform Ariel takes on after shapeshifting is set free on Earth. Since her enemies want just that, she is now on the run. In the meanwhile Ariel has found out she has the ability to only partially transform, thus gaining strength when being attacked without letting a Nightmareling run loose on Earth.