Angered by his inability to breach Erigor's wind armor, Natsu intensifies his flames and dissipates Erigor's spell with the heat, defeating him. When Natsu's friends catch up with him, Kageyama takes Lullaby from Erigor and escapes to Clover on their magically fueled car to carry out Eisenwald's plot. As he prepares to kill the guild masters outside the conference hall, he is found by Makarov, who persuades him to surrender. However, the flute is revealed to contain a gigantic demon created by the ancient dark wizard Zeref, which emerges from the flute and attempts to kill the guild masters on its own. Natsu, Gray, and Erza vanquish the demon and rescue the guild masters, but accidentally obliterate the conference hall in the process.