Xu Yourong was cultivating on the other side of the stone wall. She might have reached the critical moment, where any external disturbance might place her in extreme danger.
So Chen Changsheng could not do anything, but he also could not leave. He quietly stood in front of the stone wall for a very long time.
At the very start, it was because he was feeling yearning and a few extremely complex emotions, but later on, it was because he had a bad feeling.
In terms of calculation and deduction, there was the Demon Military Advisor Black Robe, the deceased Elder of Heavenly Secrets, his master Shang Xingzhou, and after them was Xu Yourong.
Chen Changsheng did not have a Fated Star Plate, nor had he ever learned to calculate and deduce, but he had learned the Intellectual Sword from Su Li.
From a certain perspective, the Intellectual Sword was a method of calculating and deducing.
He began to think back, all the way to that letter he had received at the Mount Song Army headquarters.