When Marvel announced Thor 2′s title at Comic Con a couple of weeks ago, everyone thought it was a cool title, but what does it mean? Well, now some clues have surfaced that gives us an idea what the Dark World refers to.

Bleeding Cool has dug up some rumors that point to elves showing up in the movie. Dark Elves have been villains of Thor in the past, and they like to run around underground. The Dark World of the title could refer to Thor fighting Dark Elves on their own turf in the sequel.