Lin Bai fell into the large hole, and after descending over a hundred meters, he landed at the bottom.
Just as Lin Bai had guessed, beneath the Central Square, there existed something akin to an Underground Palace.
After landing at the bottom, Lin Bai took out several Night Illuminating Pearls from his Storage Bag and immediately scattered them around, lighting up the underground area.
This underground area formed a circular square about a kilometer in size, and at this moment, at its very center, lay a water pond about a hundred meters wide.
The water in the pond was milky white, emitting a faint fragrance.
Lin Bai quickly approached, coming to the milky white pond. Carefully, he scooped up some of the milky white water, scrutinizing it intently. After a while, Lin Bai said, "This should be the so-called Heavenly Heart Spirit Spring!"
