Source: Dungeon Denizens Revisited, pg(s). 50
He was obsessed with mapping the underground territory of the ropers, a task which he undertook for nearly five hundred years until he disappeared. He left behind letters and maps. These depicted a series of chasms which marked out the shape of an ancient glyph.
Today, his papers are kept under lock and key at the Grand Lodge of the Pathfinder Society in Absalom. Rumours claim that anyone who gazes upon the maps suffers incurable and endless bleeding from their eyes, a type of stigmata.