At those words, Mu Yunyao finally caught on.
According to the remnant soul, the Yellow Springs Netherworld had come into being after a great battle long ago.
But the so-called Holy Spirit Pearl that could purify the Yellow Springs Netherworld was in the Four Extreme Domains. Something about that just didn't add up.
"Was he lying to you?" Mu Yunyao asked with a furrowed brow.
"Either way, he wasn't telling me the truth."
"The Yellow Springs Netherworld seems much like he described it, but when I think it over carefully, something feels off."
"There are still things I haven't figured out. Once we're back, I need to get to the bottom of the Holy Spirit Pearl first. Maybe then I'll have an answer."
"I'm even starting to wonder if the Nine Profound Domain sent people to guard the Four Extreme Domains back then because of the Holy Spirit Pearl—and the Yellow Springs Netherworld."
Hearing Chen Changan, Mu Yunyao asked in surprise, "You mean the Yellow Springs Netherworld might be a seal, and the Holy Spirit Pearl the key to unlocking it?"
"That remnant soul was being suppressed in the Yellow Springs Netherworld. Was he trying to use you to free himself and break through the seal?"
"And what role did Mei Yaozu play in all this?"
"After all, it was your father who made the bet with him and arranged for him to stay here."
"Did your father know about the Yellow Springs Netherworld?"
For now, Chen Changan couldn't say what role Mei Yaozu had played in all this. But he was certain that Mei Yaozu had gathered so many experts in Mysterious World City for a reason.
"Let's head back to the Eastern Extreme Domain first."
"Okay!"
What Chen Changan found most suspicious about the whole affair was that