Board Thread:Lore Discussion/@comment-26120918-20150227155352/@comment-25343239-20150305135806

Well - that's not how it's written down and that's not how they eplain it in lore - but that's a really neat idea and it's actually better than what's currently out there, IMO.

I'm pretty sure they're in a "dragon-break". http://www.uesp.net/wiki/Lore:Dragon_Break