Board Thread:Lore Discussion/@comment-7153552-20130708162914/@comment-7153552-20130910160918

I misspoke about the Heart, you are correct, but to my understanding we did deactivate the tower in question. The Amulet of Kings was supposed to be the stone for the White-Gold Tower, to which Martin destroyed in order to become the Avatar of Akatosh (a little foreshadowing there Beth?), although it has been theorized that the statue left in it's place now holds the power and has become the stone itself.

I agree that a person cannot be any stone, but they can be needed to make it work, much in the way the Septim bloodline was needed to make the Amulet work.

This next bit will be kind of a stretch, but hang on with me as we are in the realm theorizing here. The Skyforge could still be the stone, when we enter the Companions questline there's a bit of a power struggle going on within the faction. All that mess with the lycanthropy - which had been going on for years and years - may have been coming to a peak with the separation of those who didn't want to cure and those that did. Just a random thought I had, but I figured I may as well write it down. The connection could have been severed and allowed Alduin to enter the realm. Once in and gaining power, he needed to be physically stopped, even if it were in a non-physical realm.

At any rate, the crown could have been, but I don't forsee it being that. I'm not entirely sure that the Snow Tower was active at all, even in the past three games. The idea that the Eye of Magnus is Snow Tower Stone would kind of support that, but not the fact that the Psijic's took it away with them, unless they're keeping it safe until such a time that it is needed.