I'd hate to burst anyone's bubble, but the mystery of the Dwemer has been solved since Morrowind...well sorta. Reading the books called Hanging Gardens of Wasten Coridale, The Egg of Time, and Divine Metaphysics revealed a good part of what likely happened. If I'm not mistaken, this was part of a quest. EDIT: Further research proves this is indeed the case... http://www.uesp.net/wiki/Morrowind:Mystery_of_the_Dwarves