User blog comment:Jho5689/Fairy Tail 337 and onwards/@comment-11232389-20130625163146/@comment-7418318-20130625175832

Rogue was speaking in conditional. He was confident that he could have controlled all 10.000 Dragons, but believed that it would have been taxing.

Something I've come to wonder about recently is the possibility that Edolas migth once have been the same as Earthland, but the event that changed the laws of magic split the two apart.

So esentially, could Edolas just be a different parallel timeline, rather than a completely seperate universe?

After all Lucy was able to summon the Earthland spirits into Edolas. Does that mean that the Spirit World exists "between" dimensions? Do the keys have the power to work like mini-anima portals? Or might Edolas be a different timeline of Earthland and thus still connected with the same Spirit World?