The two layers of the underworld are actually overlapped!
This is the reason why Li Tianqing kept performing sword sacrifices but couldn't find the Heavenly Pond Country.
These two layers of the underworld have some spaces intersected, causing ghosts and spirits to live together.
However, many places do not intersect, they only overlap, like Yin Mountain!
The two found Chen Shi and informed him of this matter.
Chen Shi was amazed. He had already noticed some anomaly in the underworld near Qianyang Mountain, incapable of accommodating the Ten Thousand Great Mountains, where the Yin and Yang conflict used to exist between Qianyang and Yin Mountain. Li Tianqing's discovery made him realize that the simple Yin-Yang opposition couldn't explain this phenomenon.
"Perhaps someone can explain this. Come with me!"
