This is the nexus of antimatter, a realm of inverted matter and anti-matter. Where the laws of physics are reversed, and the fabric of space-time is warped.
From here, you can travel to other antimatter locations, but be warned: the journey is treacherous.
Abyssal Void — A vast expanse of nothingness that seems to have a mind of its own.
Quantum Flux — A realm of probabilistic uncertainty, where the rules of reality are constantly shifting.