"Gu Xing told me the Deer Mountain Kingdom was built on the remains of some ancient empire called the Bi Xie Empire. The seniors may know more about it than I do. Could that eerie sensation have something to do with some artifact or anything that the Empire had owned?
I don't know much about its history, but I have read about artifact spirits becoming deranged like wraiths from the loss of their owners and some fiend organizations have created arts that harness that resentment. Maybe someone from the Kingdom may have done the same.." said Yang Qing.
"While that is indeed feasible, the Bi Xie Empire has been gone for too long now. Artifact spirits could be considered immortal. As long as their main body remains intact, they will continue to exist no matter how much time passes by.