When Hu Qingniu came out of his hut after waking up and washing his face, he was shocked to see Chang Yuchun glowing with renewed health. One of them is intelligent and brave, while the other is unusually strong in body and spirit, he said to himself. Consequently, the injuries caused by the Heart-Splitting Palm Technique have been cured.
After this success, Zhang Wuji immediately prepared a prescription of ginseng (ren2 shen1), pilose antlers (lu4 rong2), the tuber of the multiflower knotweed (shou3 wu1) and poria (fu2 ling2) to strengthen Chang Yuchun's body and assist in his recovery. After ten days or so of consuming the top-quality herbs that Hu Qingniu kept in his home, Chang Yuchun made so much progress that he eventually said to Zhang Wuji, "Little Brother, my injuries have healed completely, so there is no more reason for you to accompany me day and night. We will part here."
The life and death experiences of the past month had turned the boy and the man into friends who were ready to die for each other. Therefore, Zhang Wuji was very reluctant to part with Chang Yuchun. However, he knew that the man could not stay by his side all his life, so he tearfully agreed.
"Do not feel bad, Little Brother," said Chang Yuchun. "I will come back and visit you in three months. If the poison in your body is gone by then, I will take you to Mount Wudang, so that you can see your grandteacher again."
Then, he went into the hut, bowed before Hu Qingniu and said, "My injuries have been healed. Although it was Brother Zhang who treated me, he was nevertheless guided by your medical books, Uncle Hu. I have also consumed quite a bit of the expensive herbs and medicines that you possess."
Nodding in acknowledgement, Hu Qingniu replied, "That is nothing. You may have recovered from your injuries, but you have also lost forty years of life."
"What?" asked Chang Yuchun, for he did not understand the physician's remarks.
"Well," answered Hu Qingniu, "according to the condition of your body and mind, you should live beyond eighty years old. However, that little fellow used some erroneous medical prescriptions and faulty acupunture techniques on you. As a result, you will ache all over whenever it rains. At about forty years of age, you will finally go and see the King of Hades."
Chang Yuchun laughed heartily. "A man lives to serve his country," he declared. "If I can establish a work of such merit, thirty years of life will suffice. Why then do I need forty? One can live to a hundred years old, but if he does not accomplish anything, his life is but a waste of food."
Hu Qingniu nodded again, but he did not say anything more. According to The Legend of Chang Yuchun in the Historical Annals of the Ming Dynasty, the man did eventually die of a sudden illness at the age of forty.
Zhang Wuji walked Chang Yuchun all the way out to the entrance of Butterfly Valley before both of them parted in tears. Then, the boy made a silent decision in his heart: My bumbling cures and treatments caused Brother Chang to lose forty years of life. Although he had suffered harm in my hands, could he also not enjoy benefits from them? I must find a way to restore him to his previous state of health.
Since then, Hu Qingniu treated Zhang Wuji with acupuncture and herbal concoctions on a daily basis, seeking to reduce and expel the deadly toxins in his body. Meanwhile, the boy continued to study the physician's books and memorise the principles behind the use of medicines and herbs. Whenever he came across something that he could not understand, he would ask the physician for help. His desire to learn pleased Hu Qingniu so much that he would explain everything in great detail. Sometimes, the boy's questions were so strange that they caused the man to look at things in ways that he had never thought of before. Hu Qingniu had originally planned to have Zhang Wuji killed after his injuries were healed, but he soon felt the young man's death would take away the only person whom he could really talk to in the valley. Therefore, he found himself wishing that his companion would not recover as quickly as he had initially wanted him to.
Several months passed. One day, Hu Qingniu suddenly discovered that nothing happened when the Guan Chong (Guan1 Chong1) acupoint on Zhang Wuji's ring-finger was pricked by a needle. The Qing Leng Yuan (Qing1 Leng3 Yuan1) acupoint two cun (6.66 centimetres) above his elbow and the Si Zhu Kong (Si1 Zhu2 Kong1) acupoint in the cavity of his brow did not respond to the needles either. These three points were part of the Hand Shaoyang Channel of the Three Visceral Cavities. Named Upper, Middle and Lower respectively, these cavities were described as an amazing part of the body's internal organs in medical books. Despite painstaking thought and a variety of marvellous techniques, Hu Qingniu could not expel any of the toxins that had found its way into the boy's Visceral Cavities. As a result, he became so stressed out by the entire episode that he had ten grey hairs in as many days.
Deeply grateful for his efforts, Zhang Wuji said, "Mr Hu, you have already done your best. Everyone on earth must die someday, so this is just an indication that my time has come. You really do not have to ruin your own health for the sake of mine."
Hu Qingniu snorted in disdain and said, "You despise our Ming and Eagle Sects, so when have I made any efforts to save your life? But my failure to cure your illness will inevitably damage my reputation as the 'Healing Sage of Butterfly Valley'. Thus, I must ensure that you are healed first. Then, I will have you killed."
A involuntary chill ran down the boy's spine, for he was aware that the physician would never overturn his own decision. "Since the toxins in my body are not dissipating, I will eventually die," he said. "So you need not lift a finger against me. Sigh, all the people under the sun seem to have only one wish - that everyone else must die before they can be truly happy. Thus, they study the pugilistic arts just so that they could have everyone else killed."
To his surprise, Hu Qingniu kept silent. After gazing at the sky outside his door for a long time, he said in a quiet voice, "When I was young, I put all my heart into the study of medicine and aspired to bring hope and benefit to mankind, but I soon found out how wrong I had been when a man whom I had rescued turned around and hurt me badly. He was a young fellow who was poisoned by the venom of the golden silkworm in Guizhou's Miao Settlement. This particular venom was so potent that its victims were bound to suffer terribly painful deaths. After three sleepless days and nights of painstaking effort, I finally succeeded in curing him. Subsequently, we became sworn brothers, and I gave him the hand of my younger sister in marriage. But he eventually caused my sister's death. Do you know who he is? He is now the reputable leader of a renowned and upright clan!"
The pain and grief on Hu Qingniu's face began filling Zhang Wuji's heart with an unexpected compassion for him: So it was this tragic experience that turned him into a cold-hearted man who ignores the dying. "Who is this unfaithful ingrate with the heart of a wolf and the lungs of a dog?" he asked.
The physician gnashed his teeth in anger and answered, "He … he is none other than the leader of the School of Mount Hua, Xianyu Tong."
"Why do you not take him to task over this matter?" asked Zhang Wuji again.
"I have looked him up thrice altogether," Hu Qingniu replied with a sigh, "but I came away defeated each time. In fact, I was almost killed in our last duel, for this man is very highly skilled in martial arts. He is also very intelligent and resourceful, so much so that he is known as 'The Shrewd Strategist' (Shen2 Ji1 Zi3). I am really not his match. Furthermore, as the leader of the School of Mount Hua, he has many subordinates at his beck and call. Our Ming Sect, on the other hand, has been torn apart by internal strife in recent years. All the top pugilists in our Sect have been battling one another, so there was no one who could help me then. Besides, I am too ashamed to beg others for assistance. I am afraid that this grievance will never be redressed. Sigh, my poor ill-fated sister … our parents passed away when we were young, so both of us depended on each other … " At this point, tears began welling up in his eyes.