» Mon Oct 25, 2010 6:20 am
Taken from the UESP:
The Dwemer inexplicably disappeared during the Battle of Red Mountain, during the War of the First Council. Tonal Architect Lord Kagrenac constructed Kagrenac's Tools to harness the powers of the Heart of Lorkhan to heighten his race to Anumidum. The disappearance of a whole race in a flash sparked many theories, but is thought to have followed their attempt to use the tools on the heart, to make a "superweapon," or to make their race immortal, and simply coincided with the war. It appears that the Dwemer were inconclusive as to their opinion of using of the Heart. Some, including Bthuand Mzahnch, opposed its use, warning that massive side effects were likely, while the majority of the Tonal Architects, including their chief, Kagrenac, remained unconvinced.
Even Yagrum Bagarn, the last living Dwemer (whose existence is owed to the fact that he was in the "Outer Realms" when the event occurred), has no explanation as to what actually transpired. It appears all members of the Dwemer race were simply removed from the world, possibly to an unknown location in the outer realms. In the Dwemer ruins of Bamz-Amschend in Mournhold, Morrowind, there are numerous piles of ashes present next to weapons, on chairs, and in beds. This suggests their physical presences were suddenly reduced to ash in some way.