The Ethereal Plane, more commonly known as The Ghost Zone, is a vast section of the cosmos comprised entirely of Dark Energy and Ectoplasm. It is the home Eidolons, powerful ghost-like monsters made of ectoplasm.
Inspiration: "Danny Phantom"
Description
The Ethereal Plane, better known as The Ghost Zone, is a large portion of the cosmos that is comprised of Ectoplasm and Dark Energy. It is a vast dimension of ectoplasmic energy and random portals that scatter the nonexistent landscape. The Ethereal Plane is vast and is constantly morphing and changing making it impossible to navigate by any living creature. The only way for mortals to navigate the Ethereal Plane is by using an Infi-map.
Random doors, islands, and buildings float aimlessly across the Ethereal Plane. These structures mostly act as the homes or lairs of a certain Ghost or Ectoplasmic Creatures. Although it happens rarely if two or more of these structures were to collide a supermassive black hole can form.
The Ethereal Plane has no connections to time in any other Universe or Dimension. It both exists and does not exist at any given point in time. The Ethereal Plane may exist outside of the Universes entirely, existing in the Void. Temporary Portals spontaneously occur in random locations in the Overworld. The two locations Portals open to most prominently are the Earth in the Elemental Dimension (specifically to and from the Bermuda Triangle) and Discordia in the Magic Dimension. The portals can open in one time period but exit a different time period on the other side, making them one-way-portals and very dangerous to travel through.
Inside of the Ethereal Plane, the roles between the dead and the living are reversed. Ghosts and other Ghostly Creatures lose their ability to walk through walls but humans gain these abilities. Ghosts are also incapable of touching living creatures in the Ethereal Plane. Living creatures can fly and can no longer age while in the Ethereal Plane.
History
The background of the Ethereal Plane is widely unknown. conclude that it resides in Limbo, the sections of the universe in between the Dimensions, where Dark Energy is most concentrated. When this Dark Energy, mixed with the leftover Magic from the birth of the universe Ectoplasm was formed. However, not a lot of Magic was out there in Limbo so only small pockets of Ectoplasm were created.
When the punishment of being thrown into Limbo was created, more Magic was introduced which meant more Ectoplasm was created. When a creature is put into Limbo, their bodies will begin to expand until it is completely dissolved by the Dark Energy there. The Magic that existed inside of their bodies will be released and fuse with Limbo's Dark Energy to form Ectoplasm. Eventually, the pockets of Ectoplasm converged into a single mass, a new Dimension was formed. As it became more refined, its own Universal Laws were established, its own landmasses were formed, and its own Pocket Dimensions were created.