"The Purple Old Manor was also a yin land?!" Su Yu exclaimed in shock.
"En. Almost." Nie Fan answered. "I had a suspicion and made the Exorcists Committee measure the yin energy in the Purple Old Manor before. The yin energy was high, yet not high enough to be so alarming." He explained. That is why he didn't think much of the Purple Old Manor before. After all, there are many haunted places in this world with their respective yin energy surrounding them.
But, it was only now that he realized that for a haunted house that has long been abandoned, the yin energy of the Purple Old Manor is higher than it should. Also, it started to radiate yin energy that even killed off other people nearby. So, the Purple Old Manor is abnormal, and the Exorcist Committee began to pay attention to it.