With rumors of Thor: The Dark World‘s villains running rampant, it’s unclear just what’s in store for the highly anticipated sequel for right now. The recently announced subtitle has led many to speculate just what the story may have in waiting for fans, and the wide belief has seemed to fall on one villain race in particular. Now, a new setting may have just been unearthed and it easily ties into the rumored villains of the film.

Bleeding Cool reports that they have verified multiple scenes for Thor: The Dark World will be shot underground and London tunnels will be used in respective shots to tie into the underground location. So, what does that mean? Will judging with recent rumors that The Dark Elves and Malekith the Accursed will be the central antagonists, the site says that the scenes could be that for the Elves’ home of Svartalfheim.

In the comics, the Elves live in underground caverns and spaces, and would explain the various scenes shot under the surface. The only concern is that there is no word whether these settings for the Elves will be on Svartalfheim itself, Earth, or even Asgard. There’s a chance the race could be living in secret under some Earth cities, though as of right now nothing is confirmed.

In the history of Malekith the Accursed, the villain’s greatest weapon is that of The Casket of Ancient Winters until it’s taken away and locked into Odin’s throne room. The artifact was a major piece of the first film between the Frost Giants and Loki, and could be a recurring plot point in the sequel as well. Then again, this could be seen as too similar of a subplot and may be changed up in some form if Malekith is indeed in the film.

Thor: The Dark World is currently starting to film in London under new director Alan Taylor, and will star Chris Hemsworth, Natalie Portman, Tom Hiddleston, Anthony Hopkins, Idris Elba, Jaimie Alexander, Zachary Levi, Stellan Skarsgard, and others. Currently the sequel is set for release on November 8th 2013.