Cao Yi, standing to the side, looked at Yunxi with praise in his eyes, while Zhang Lingrui and Lin Keyang pondered the possibility Yunxi had raised. Cao Yi said,
"Junior Sister Wei's deduction should be correct. Xiao He used a formation to slaughter the members of the Xiao family, and that formation could only have been taught to him by an evil cultivator."
Lin Keyang asked directly,
"Senior Brother Cao, what is special about this formation?"
Cao Yi explained,
"This formation is also an Evil Formation, somewhat similar to the one that previously plundered Wei Lingkai's life force. However, this one is clearly far more powerful. It extracts not only life force, but also cultivators' spiritual power, and stores that spiritual power."
Yunxi and the other two drew sharp breaths. Just hearing about it made their scalps tingle.
After taking a deep breath, Yunxi asked,
"If cultivators have all their spiritual power and life force drained away, they will undoubtedly die. Could the energy stored from those things help evil cultivators raise their cultivation and extend their lifespans?"
Cao Yi nodded.
"Yes. And Xiao He may be able to use that energy to repair his damaged Dantian."
There was no need to say the rest. Everyone understood perfectly well.
Yunxi muttered,
"If I'd known this would happen, I should have killed him outright back then. Instead, I've given myself another enemy."
"You spared him back then because you wanted to find clues about the evil cultivators. You were not in the wrong."
Cao Yi could only comfort her like this.
"Do we need to tell True Lord Xiaoyuan about this?"
Yunxi asked.
"The clues discovered by your Spirit Pet, Dian Dian, can be reported to True Lord Xiaoyuan. As for our speculation about the formation, I believe the City Lord's