Harry Potter and the Tower of Lights

Death-borne and hallowed, drowned in prophecy since birth, thirteen-year-old Harry Potter turned time and fate to save Sirius Black. In one reality, he merely succeeded. In others, he did so much more, good and ill alike. Once they crowned themselves Masters of Light, but now the End is all that remains. For the sake of all worlds, the Boy-who-Lived must become the Master of Death.