Oath Stone.
This was a method used by the Second Yan Han Empire to safeguard its scriptures.
In principle, it was actually no different from the mental prohibitions employed by Daoist schools.
Moreover, both required the person taking the oath to sincerely cooperate; otherwise, the attempt would certainly fail.
Zhong Shenxiu had understood all this before coming and knew that such vows only had binding power when passing on techniques, and were otherwise entirely ineffective at any other time.
This had been verified over the years.
At this moment, with a slight smile, she stepped forward and placed her palm on the Oath Stone.
"I swear by my Heart Demon never to divulge the techniques..."
A grand voice passed through the stone and directly into Zhong Shenxiu's heart.
If she resisted, refraining from opening her heart, the oath would disperse.
'Headless Earl!'
