Was wandering around aimlessly enjoying the blue skies near ghostgate when I stumbled across a cavern just east of ghostgate itself (and right at the ghostfence line, not sure if one could get to it with the fence active) called Sharapli. Decided to check it out....
Standard sixth house cavern, it looks like. Kinda small. Then I notice that one of the lava chambers has a walkway leading to a passage lower down one of it's sides. I enter and face a dremora lord. Walking past his corpse, I find.....
http://advancedaquarist.com/cjdevitotemp/pool.jpg
The Pool of Forgetfullness.
Clicking on it does nothing. I know of no quest involving it. I even dug out my old hint guide and checked it..... no mention of the Pool. Has anyone else seen this or figured it out?
[Edit: I'm -pretty- sure this isn't from a mod. Few of the mods I run add any extra dungeons or quests, and I -think- I know all of those.]