Sacred Lantern of Pholtus
A divine artifact
The Lantern is an icon associated with an alleged avatar of Pholtus who appeared a few hundred years ago. It has since been a part of the retinue of the high priest of Pholtus. Right now it’s in Greyhawk, not far from Elredd.
The Lantern’s light destroys undead or prevents them from entering its illuminated radius. The holder of the lantern is immune to spells cast by the undead.