The Twin Vortex Domain.
It consisted of two vortices with immense reaches, the smaller 3.9 light-years in diameter and the larger 4.2 light-years. The two influenced each other and could not expand, but they still drew in distant matter.
Outside the Twin Vortex Domain, on a meteorite several kilometers across, a white-robed figure stood on a small hill,
observing the wonders of the Twin Vortex Domain.
The Spirit Eye between Dongguan's brows opened. His vision instantly changed, and crisscrossing furrows and secret patterns measuring light-years in length and width appeared before him.
As usual, he inscribed them in his mental space.
"The Twin Vortex Domain does share some similarities with the Gathering-Scattering Nebula." Dongguan compared it with the Great Destruction he had once witnessed in the Gathering-Scattering Nebula, examining their similarities and differences.
The Gathering-Scattering Nebula was formed by two nested black holes in equilibrium, and it underwent a Great Destruction and eruption at regular intervals of roughly sixty epochs.
The centers of the two vortices in the Twin Vortex Domain were also black holes, but they were farther apart. Although they were said to follow a cycle too, it was nowhere near as extreme, with nothing like a "Great Destruction."
Under these circumstances, the resources produced in the Twin Vortex Domain were naturally neither as precious nor as plentiful as those in the Gathering-Scattering Nebula, but,
it also produced certain materials that required long-term stability and the polishing of time to form.
And for long-term habitation, the Twin Vortex Domain was more suitable.
Some Immortals had remained on the Outer Domain Battlefield for far too long. As a result, they established residences, and even places like underground black markets where powerful figures from different factions could negotiate and trade.
Such places existed in the Twin Vortex Domain and the