First Referenced:
The Desolate Guardians (Part 5)
The portal hub facility is an enormous, mostly automated structure housing an inter-dimensional portal generator, as well as a Dimensional Fracture Bomb production plant and numerous advanced, largely automatic systems. Apparently used to transport vast quantities of resources, these structures now appear to be largely abandoned, apart from in The First World, but many remain operational. The facility encountered by Heath was originally targeted to The First World, and the portal generator was inadvertently activated by Heath which sent the unnamed brunette woman and a deactivated fracture bomb to The First World, the original home of the brunette woman.
When the site encountered by Heath was temporarily reactivated and re-targeted, a portal was successfully generated to Heath's universe, however the real end-point of this portal is unknown, as the perception of it was induced by the virtual world environment in which Heath was operating.