Harry Potter and the Rise of Balor

Balor, the Demon King, has opened his eye and cast his power into his vessel to bring about the renewal of the world, as was foretold in the old stories. How will the Harry and Hermione react when this ancient power touches, not only their souls, but also their hearts? AU / Harmony / Dark, Powerful Harry / Grey, Powerful Hermione / Evil, Manipulative Dumbledore. Please Review