Although the captain had given him a way, Xu Qing had his own method.
As long as one cultivated anomalous substances, they wouldn't be able to escape the sharp senses of the shadow. After all, it ate anomalous substances.
Although there were many cultivators with dense anomalous substances in Purple Earth City, if the aura of the Forbidden Sea was included, the range would be reduced greatly.
Things that were difficult to do for others weren't difficult for Xu Qing.
The only thing he needed to do was to find the real murderer among the few candidates who met the requirements.
This point was also simple.
Xu Qing didn't believe that with his teacher's alchemy attainments, he wouldn't have left some marks. Even with Xu Qing's current attainments in herbs, he could still leave some undetectable medicinal herbs marks on the other party's body before he died.
