User blog comment:DragonbornMAGE/Short view on Dwemer disappearance/@comment-4975504-20130102040236/@comment-138.217.80.226-20130103045139

Lorkhan was most definitely involved, albeit unwittingly. The Numidium is a Dwemer invention, it's puprose was to achieve a form of transcendence using the Heart of Lorkhan. The Tribunal gave Tiber Septim the Numidium as part of the Armistice and as a result of not having the Heart, which is vital, a substitute had to be made: the Mantella. By the way, I suggest you look up some of Michael Kirkbride's posts on the Imperial Library. He is responsible for A LOT of the lore in TES, including the Dwemer I believe. Much of what I siad is rooted in his posts. The thing about Vivec killing Tiber Septim can be found here: http://www.imperial-library.info/content/interviews-vivec