Martha is woman who leads a nomadic life travelling in a caravan pulled by a horned beast. Her nomadic existence is enforced by people's suspicion that she is connected to the Darkling, although she protests her innocence. Her innocence is questioned though as she can generate an aura of light that destroys the Darkling and his supernatural fog; suggesting a connection of sorts. Despite this power she is reluctant to confront the Darkling until encouraged by the heroes.
Martha knows the Dungeon Master but is hostile towards him, commenting that he ruined her life the last time they met but does not explain further. Dungeon Master dubs Martha the Light Bearer and it is possible she may have been a former pupil of his.
Martha has a pet named Gweekin.
Martha may not be indigenous to the Realm and a fellow abductee as she has a photograph of her family dressed in Victorian clothes and wears glasses, all of which seem anachronistic to this medieval world.