Maerlyn

An apprentice who was lost to time and history, all that is known of Maerlyn is that she was a human who specialized in absorption of arcane powers, memories, and souls. It is rumored that Halaster Blackcloak took her on due to her resistance to the Spellplague that he somehow knew was coming. She was consumed by her own experiments when she summoned a lifedrinker specter that slowly drained away her memories and life-force. She existed only as a ghost for a long period of time and was tortured by said specter until recently "freed" by adventurers.