Fairies in the Wind

Natsu, Erza, Lucy, Happy, and Gray follow the Eisenwald Guild to try and stop them from using the Lullaby, a flute that when played will drain the life out of anyone that hears it. They find them but are lured into a trap set by none other than the Eisenwald leader, Erigor. Can they escape the trap and stop him before he completes his fiendish plan?