While the banquet was in full swing, Chang Geng was helping Miss Chen collect herbs in the courtyard where she temporarily settled in the capital.

      His cold went away as quickly as it arrived, cured after two doses of medicine. As a matter of fact, he was almost as good as before. The reason why he still took his leave was due to his sensitive background, Gu Yun had deliberately let him avoid it. Second, it was because he heard that Chen Qing Xu found new clues about Bone of Impurity.

      "You mean that Bone of Impurity is in my vein?"

      Chen Qing Xu's hands were full of all kinds of yellowed old books, she often had to rescue the pages fallen off. Her hands were busy, but her mouth was as orderly as before. "The Bone of Impurity damages one's mind. I always thought its root was in the brain. If it weren't for the Marquis's reminder, I would not think of this aspect... You see here — the barbarian's earliest record of the evil god Wu Er Gu - 'born malicious, eating his brother's flesh and blood, refining himself, with four feet, four arms, two hearts, blood flows in the chest like a tide, especially tyrannical', I thought that the 'blood flows like a tide' part was only a metaphor, but it actually refers to how the Bone of Impurity attacks."

      Only when she talked about these things could she utter so many words at a time.

      "Blood and flesh," Chang Geng was silent for a moment, shaking his head and smiling bitterly, "What Miss Chen means is that my entire body is poison, unless I follow the myth of scraping bones and picking flesh?"

      It seems that this was much worse than having a ruined mind.

      Chang Geng unhurriedly sorted out the herbs and put them in containers in order. The gears on the shelves clenched together with a squeaky sound and slowly rose to the top to reveal the empty space below. This was meticulous work, it could not be done by an impetuous person.

      Chen Qing Xu looked at him with admiration. There was no historical record of those who were entangled by the Bone of Impurity but could still stay sane until adulthood, let alone one who could maintain such a calm and gentle temperament.

      There was no telling whether he was born with perseverance, or if he was better than the others by one Gu Yun.

      Chang Geng: "To tell you the truth, I don't feel very well recently. The Bone of Impurity attacks are becoming more and more frequent."

      Chen Qing Xu casually said, "The Marquis had already told me."

      Chang Geng was startled for a moment, "He..."

      Gu Yun always seems to follow the attitude of 'it was only the barbarian witchcraft poisoning' and never took this 'minor skin and flesh illness' seriously. He seldom talked about it and never showed any concern in front of Chang Geng.

      Turned out...it had always troubled him?

      Chen Qing Xu paused and realized that she had said too much. She shifted the topic, "Your Highness, if there is nothing else to instruct, I'm going to return to Chen family old residence in Shanxi. It's much easier after I find the roots, there will be a solution in the end."

      "Ah," Chang Geng answered, putting his hands together, "I have troubled you, and about Zi Xi's antidote..."

      He was interrupted by a visitor from the palace before he could finish.