The Orb of Light is a powerful artifact the despises the undead and aides those who destroy such monsters.
The Hand and the EyeEdit
The Orb played an important role during The Hand and the Eye. It was one of the three artifacts coveted by the demilich Acererak, the others being the Hand of Vecna, and the Eye of Vecna. He desired it because of its potential as a threat to his plans to raise an undead army.
After Acererak was destroyed and the Hand and Eye of Vecna were given to the mages' guild of Glidden, the Orb mysteriously vanished, moving on to pursue its mission.