As Above - So Below
He is insane, and a hermit.
Grey-robed old man, apprentice to the once powerful mage Illyriam.
He “attacked” Kedwyn in the market in Villane when he believed Kedwyn was stealing “his art”.
The attack was a curse that was slowly killing Kedwyn and robbing him of his spells.
The party was able to find the tomb of Illyiram, Iron Guard.
But they have not encountered or found him again.