Spiritualists were a derivitive of the Deathmongers back in the fifth age. Unfortunately, there was a civil war stretching on for three centuries until the coronation of (Latest king's name here). Recently, there has been dissent amongst their ranks, as their numbers dwindled in the coming of the first Undead Purge of their capital, Salamandria.

Loyal ones to the Empire will join the players/be the players,

The ones who are not loyal to the Empire will be boss-tiered monsters.

Any questions?