There is one far greater in wickedness than Raphian will ever be. His name is Yn Drogh Spyrryd, the Evil One.

He resides on a world called Treigeilys, which in the Old Language means a place of abandonment. It is where those go whose evil is so great, not even hell will take them. In Treigeilys, He has four Higher Archdemons who preside over the Peccoil, the Sinful. Seven more Archdemons—known as the Focal Fiends—direct the Peccah Shiaght, or as we know them—the Seven Deadly Sins.

There is among the Higher Archdemons one known as Kerreyder; he is Yn Drogh Spyrryd's second-in-command. He presides over the punishment of those who rebel against Yn Drogh Spyrryd and those who refuse to worship the Evil One. It is Kerreyder who holds the keys to the torture chambers deep beneath Treigeilys and he who is the warden of Prysson, the megaversial prison where the worst of the worst are interned. The worst of the worst is called the Nikkeson. It is the vilest of the vile, the most depraved monster humankind has ever known.

See NIKKESON.