The Well of Souls was the name given to a location on an unnamed planet by its pre-Hebitian natives. The site, located under the Red Mountains, was apparently a prison for a number of non-corporeal lifeforms, who became known as dithparu, or Night Spirits. Upon death, the royal rulers of this world were brought down to the Well of Souls, accompanied by their eldest sons. There, a dithparu would possess the son, as another who had formerly possessed the monarch returned to the Well.