Nowhere

A realm beyond the boundary of creation, the inevitable negative space that will inherit the mantle at the end of time. Absent of matter and time and life, Nowhere would simply appear to be what most would regard a void, though the single denizen, it's master Zero has made for himself a bastion at the boundary.

The only material in infinite Nowhere, is on the horizon with the end of time, a shimmering fractal castle standing defiant, The House of Hours, Zero's home. Despite there not actually being anything between the House of Hours and the boundary of the end of time, it is less of a void and more of a battleground, owing to the impossible amount of fighting between Time and Zero, the eternal War on High, unending Nights blooming from the material universe into the negative space, extinguished in their billions by the harrowing power of the King of Nothing.

Before the first star ignited, before the first cell formed in the material universe, Time has attempted a perpetual invasion beyond his reach, a bloating expansion on a cosmic scale, growing rampant like a cancer, the swelling of spacetime isolating all matter and widening the cold between stars, all in service of Time's visionary malice, his obsession with control and mastery. Though Time's power within the material universe is beyond reproach, his armadas, trillions of Nights wielding blighting entropy, face oblivion as the cross the boundary, drowned in Zero's will.