Etherspace

Etherspace is a mental projection (or fictional construct) created in the Astral Plane and maintained by the collective minds of all that travel that plane. One can get between any two points in the physical realm through Etherspace (Absol-ution I).

For ages, it was ruled by Lord Etherseid, a NightMare and tyrannical god who forbid outsider passage through Etherspace. (Absol-ution III)