I think I did that Winterhold quest, though it was a long time ago. The one with the crazy guy in some ice cave? And if you can piece together all the pieces then please, spoil it, I'd rather know.
It is the one for Arniel Gane.
All the pieces were put together a few years ago.
If you want to spoil the mystery for yourself, thats your choice, all the answers are in the http://www.imperial-library.info/content/final-report-trebonius.