GameSpy: Who exactly is this powerful magic-user Miragul?

Alan Vancouvering: Miragul was a legendary spellcaster. The tales say that he studied all four styles of magic, and may have been the first erudite to understand the powers of necromancy. They say that he was there when the heretics made their plans to split from the fold, and that he stole as many tomes and artifacts from Erudin as he could before the war between the factions began. He fled from sight into the depths of the north with his treasures.