The Mystery exists beyond the Far Shore and lower than The Abyss/the Mountaintop. The Mystery is also known as The White Hot Room.
It exists both inside the cosmos (the version that is within the Nexus of Realities) and outside of it (the true version).
White Hot Room contains Death's infinite tower, where each ROOM of the tower is an entire realm of metaphysical afterlife
The White Hot Room is a dimensionally transcendental place.
The White Hot Room powers the concordance engines.
It is "beyond the Beyond" and more powerful than the Beyonders.
The nexus of all realities appearing in various comics is only the shadow of the shadow of the shadow of the real thing. The nexus exists in no space and every place. Logic melts and dissolves at the passage of the nexus.
The nexus contains a place called the cosmic axis. It is the major meridian of power across the multiverse.
the cosmic axis is what gave elder gods such as Demiurge and Atum their powers.[Thor(1966) Annual 10]
Overspace is a subsection of the Mystery which is connected to the Negative Zone and originates from the "Junction to Everywhere" (nexus of realities) which is a whole multiverse named "Multiverse-5".
The Well Beyond the World is immediately next to Overspace, and acts as the afterlife.
White Hot Room is where creativity starts. It can make anything and decides what can be made.
Mutantdom is also connected to the WHR in a primal way. Hence the mutants' connection to it, the phoenix and mysterium.
The center of White Hot Room can be used as the white blank page of comics to write stories on it
It can also write stories
