Facing the Faceless
The Shadowfell is a reflection of the world near its end, when twilight reigns and the dead roam the earth. Few living creatures choose to inhabit its dark domains; chief among them are the shadar-kai in the city of Midnight. Both the Raven Queen and Orcus make their home in this realm, eternally warring over the rights to the souls of the dead. The Raven Queen, presumably, wishes to see them united with the gods they served best; Orcus wants them all for himself as undead servitors.