The Kingdom of the Dead is a state in Calernia. It is ruled by the Dead King Neshamah and mostly inhabited by Undead. It lies to the north west of Procer. Its capital is Keter. Part of the kingdom is located in one of the hells, known as Serenity.
The Kingdom of the Dead is the successor state of the Kingship of Sephirah. Its transformation into a kingdom of undead was the aftermath of a great ritual conducted by Neshamah. Details are unknown.