I'm not running any mods that should effect the area, and I haven't changed anything compared to my last visit, which worked fine, as far as the Coven area itself goes. To fix this problem, I have tried:
* Validating cache (says it needs to reacquire one file, every time, even if I validate again seconds after validating)
* Disabling Sounds of Skyrim
* Adjusting graphics
* Reloading earlier saves
* Jumping to quest target via console (crashes in the same manner)
Still, no matter what I do, I'm getting the same result. Right when the loading scren for the new area should appear, I crash. Has anyone seen anything similar, or maybe have an idea of what to do? I have no issues entering other dungeons as far as I can tell, but I'm not sure if the bug is specifically being caused by something in this area and the quest involved, or something more general.