Shangguan Ru was deeply disturbed at the result of her softheartedness.
On the night as she lay awake, she heard Old Man Mu boasting about the people he had killed. So far, he had assassinated 25 soldiers from the Great Snowmountain and nobody had glimpsed his shadow lurking.
"Good girl, today I killed five people for you again! Haha, only the wicked have freedom..."
Therefore, Shangguan Ru recounted her interaction with Old Man Mu right from the very beginning. Upon hearing this, Gu Shenwei devised a way to lure him into a trap.
At that time, Old Man Mu was still being made to bask in the sun every day. In order to provoke Shangguan Ru to release him, he talked a lot, and all his words revealed his understanding and admiration of the Wayless Qigong of Golden Roc Fort.
It was Old Man Mu who divulged that there were eight chapters of the divine kung fu in the castle.