Foreboding

"Deer Mountain Kingdom?" asked Yang Qing with a flabbergasted expression.

"You're sure?" he added.

Gu Xing paused slightly to gather her thoughts together before she said,

"I am not completely certain but the timeline warrants them to be considered a suspect at the very least. 

They have been the only humans known to have created a foothold in this place. Because of the bounty of this place, they were not the only ones who tried to conquer this area over the years or tried to create a little place for themselves here.

But in all this time, only they have been able to create a kingdom in this place. Of course, various factors went into play, such as not many spirit beasts cared much about the territory they chose except for those that had settled close to that area.