She felt a bit strange in her heart, but she quickly flew over to the scene, which made her eyes nearly split with shock!
A third-grade community naturally had an overall protective formation.
Unfortunately, this large-scale encompassing third-grade formation could only operate a small portion.
The operation of the formation required energy, that is, from the underground spirit vein. All sorts of facilities in the district, whether it was the protective array, cultivator's cultivation, maintenance of the grounds, and so on, all drew spiritual energy from this spirit vein.
This spirit vein was sufficient for the cultivation of two or three Golden Core cultivators, but with a few hundred households in the district, it was nowhere near enough.
This was also why Golden Core cultivators rarely returned, preferring to squeeze in with others at the fourth-grade areas.
The eye of the formation was a well.
