User blog comment:FairyRaven/Fairy Tail Chapter 366: 1000 Souls, Review and Commentary/@comment-6904925-20140110110507/@comment-5598380-20140111034925

What happened to Edolas can happen to Earthland too. Maybe in the future all magic in Earthland will be gone. In Edolas there's Doroma Animu. In Earthland, the cause will be Acnologia.