The Ice and Fire Yin Yang Well, located at the heart of Sunset Forest, was Douluo Continent's AAA immortal herb wholesale market.
As supreme treasures of Douluo Continent, just one immortal herb could give a suitable martial soul a rebirth, shedding its old flesh and bones.
The most typical examples were Huo Yutong and Xu Tianzhen.
Full Moon Wearing Autumn Dew, which enhanced spiritual power, could let Huo Yutong's Spirit Eyes Martial Soul undergo a silver-level second awakening and become a super martial soul.
The ultimate-fire Infernal Delicate Apricot could evolve Xu Tianzhen's Sun Martial Soul into ultimate fire, making it a super martial soul.
According to my earlier investigation, the heart of Sunset Forest is enveloped in extremely powerful miasma. It's so corrosive that it can even dissolve rare metals.
Because of this miasma, the soul beasts in Sunset Forest have grown increasingly scarce. Ten thousand years ago, it was still one of the three great soul hunting grounds, but now only a few endangered ten-thousand-year soul beast populations remain.
Clearly, someone is using the miasma to conceal the Ice and Fire Yin Yang Well. Unless something unexpected happened, Tang San should have arranged it.
This made Lu Yu a little afraid to go. If that place was a God's Trial site Tang San had set up, wouldn't going there be like a lamb walking into a tiger's jaws?
"Master, there's something I need to ask your advice on."
Lu Yu told Elder Yi about the Ice and Fire Yin Yang Well and the ambush Tang San might have left there, and also explained everything he knew about God's Trial sites.
"Hmm, so the location of a God's Trial can't be chosen at will, and setting one up costs a large amount of divine power. Once it's established, it