Since there were no traces of dark creatures in the Southern Region, there was no need to worry about them.
Then, there was the problem - where did this group of great saints and saint kings obtain so many Black Blood Stones? These Black Blood Stones could not possibly have been preserved from ancient times, right? It was possible, but very unrealistic. If they had really been preserved from ancient times, Long Wu would have definitely informed him. However, Long Wu did not mention anything about this matter. That proved these Black Blood Stones were not preserved from ancient times.