Tales of the Nine: The Mystic

Have you ever wondered what these fallen king's dark past were? How they became Sauron's Nazgul? The dead should stay as they are. Tommen Baratheon however, refuses because when his queen was gone. That was when a man in white robes named Annatar appears in his darkest moment and teaches him Necromancy. This decision dooms him to Sauron's service and meets an Elf named Eltariel