Unknown Plane

The Unknown Plane is a place that houses alien, unreal creatures. Best described as being filled with eldritch beings, they are largely unknown to the residents of other planes. The laws of nature do not seem to apply the same ways in this plane as they do elsewhere, being incredibly different. Creatures that come back from the Unknown Plane often trail monsters from the plane behind them. They will not stop chasing the offender until it, or they, are dead. Creatures that come back from the Unknown plane are either driven mad, forget their time there, or they never speak of it to others.

Effects of the Unknown Plane on creatures
The Unknown Plane has a variety of different effects on different creatures.

Celestials are weakened to the point of being equivalent to a level 1 human. They are then trapped without the strength to leave this plane until they are invariably killed by a creature there. There is one celestial that has not returned to the celestial plane via death for 600 years. Celestials do not know what this means for them.

Fiends are weakened to the point of being equivalent to a level 1 human. They are then trapped without the strength to leave that plane until they are invariably killed by a creature there.

Creatures from the Prime Plane, upon entering the Unknown plane, are immediately sickened, some merely vomiting and shaking, others fainting, others going comatose for up to two weeks, and in the rarest of cases, dying. They are not weakened in any other way however.

Other Planes

 * Angelic Plane
 * Ethereal Plane
 * Hell Plane
 * Prime Plane