Black Wizard Mavis is the 7th chapter of Fairy Tail Zerø, a prequel to Hiro Mashima's Fairy Tail. After their ignominous defeat in Magnolia, Precht and the group flee to a nearby forest. There, they run into Zeref, whose curse Mavis immediately fathoms. She establishes rapport with him and convinces him to teach the group Magic so that they can try to fight Blue Skull on more even terms. Agreeing, Zeref teaches Magic for a few days and then departs, saying that they were the happiest days of his life. The group is now prepared for their rematch against Blue Skull.