Yan Xuankong's suggestion was rather reliable.
He did not understand the Blood Demon Sect, but he did understand their cultivation techniques.
In the end, Yan Xuankong also instructed Han Zheng to take note that if they truly captured a high-ranking member of the Blood Demon Sect, they should not kill them right away, but instead try to capture them alive and pressure them to divulge the complete version of the "Blood God Scripture".
Of course, not the version that was later modified into an evil technique by the Blood Demon Sect, but the original version of the "Blood God Scripture".
According to Yan Xuankong, the origins of the Blood Demon Sect's "Blood God Scripture" are ancient and profound, even tracing back to the ancient times when it was passed down by those ancient gods and demons.
