Ning Dongge saw him staring at the gigantic Jade Wall and laughed, "Do you recognize this object?"
Chu Zhiyuan said, "Senior Brother, the mental method inscribed here seems complete, isn't it worth investigating?"
"We think so too, but unfortunately," Ning Dongge said, "there are no clues, nowhere to search."
"No clues at all?" Chu Zhiyuan asked, "Is there only this one mental method?"
"None at all." Ning Dongge shook his head, "There's no similar writing in the tower, nor the same aura."
Chu Zhiyuan said, "After our ancestors became Spirit Venerables, their lifespans extended greatly. With such a long time, they must have found ways to pass the time. Didn't they study these things?"
He pointed to the shelves.
"Even with a long lifespan, it's not enough," said Ning Dongge. "There's still cultivation to be continued."
"Isn't Spirit Venerable the ultimate limit?"
