"Holy Son Lin Bai, please come with me."
The Qin Family Head had the Qin elders organize their defenses and guard against another attack by the Zhao Family martial artists.
He himself led Lin Bai deeper into the Qin Family Residence. They passed through corridors and buildings, traversed a secret passage, and finally arrived beneath the Qin Family Residence.
About a hundred zhang beneath the depths of the Qin Family Residence stood a massive formation.
This was the first time in Lin Bai's life that he had seen the formation eye of a World Sealing Formation.
The so-called formation eye was the core of a grand formation, similar to the human heart or a martial artist's dantian.
The formation eye's core supported the grand formation and continuously supplied it with power and spiritual energy.
The formation eye of this World Sealing Formation built deep beneath the Qin Family Residence was one of the eighteen formation eyes of the Water Mirror Sea World Sealing Formation.
The Water Mirror Sea World Sealing Formation had eighteen formation eyes in total.
Back then, to prevent invasions by other sects and lineages, the ancestors of the Tianshui Sect had arranged many decoy formations outside those eighteen formation eyes.
Now, on the Water Mirror Sea, there were a total of one hundred and eight formation eyes resembling those of the Water Mirror Sea World Sealing Formation, but in reality, only eighteen of them were true formation-eye cores.
The formation eye guarded by the Qin Family of Storm City was a genuine formation eye.
Lin Bai arrived deep inside the Underground Palace, entered the formation, and carefully examined it.
The formation occupied roughly a thousand meters of ground, which was densely engraved with runes.
Arranged in a special pattern, those runes formed one trajectory after another.
At