Ning Beichen was not a good-natured person.
Li Chengfeng was the Palace Master of Liangtian Palace. Liangtian Palace held considerable power among the cultivators in this world.
However, his magnanimity was no bigger than a lentil. Letting him go would only invite trouble.
Even if he didn't retaliate now, there was no guarantee he wouldn't in the future. He might kick Ning Beichen when he was down, or harm those around him. Therefore, such a person could absolutely not be spared.
As for Qiao Zixuan, he was even less worth sparing. This man was worse than Li Chengfeng, even more wicked in nature. To deal with them, they had to be killed together for true safety.
Even if there were repercussions later, it would be claimed that the Reversive Ones killed Li Chengfeng and Qiao Zixuan, having nothing to do with Ning Beichen.
As for how to deal with the two Reversive Ones, it was simple for Ning Beichen: let them continue doing what they were supposed to do, which was to help him find blessed lands.
Ning Beichen did not want too many people to know about his connection with the Reversive Ones at this time. After all, the Reversive Ones were outsiders, and to the people here, they were enemies.
After leaving, Ning Beichen did not pay any further attention to the matters of Liangtian Palace. Whether Liangtian Palace was dominant or not was irrelevant to him, and he had no need to curry favor with them.
Moreover, Li Chengfeng was dead, Qiao Zixuan was gone, and the elder of Liangtian Palace had been half-crippled by him. The other members were dealt with by the Reversive Ones. Liangtian Palace was now like a phoenix fallen from the sky, worse off than a chicken.
Soon, Ning Beichen returned to Liu Yilin's side and spent his free time helping her research medicine.
Under the high-tech microscope, Liu Yilin was speaking to Ning Beichen.
"Beichen, what you are seeing now are cancer cells I extracted from a cancer patient. What are your thoughts after seeing them?"
"They seem very active. If I had to use a metaphor, I'd say cancer cells are like rabid dogs among a pack."
Ning Beichen withdrew his gaze from the microscope's image and said.
"That's right, your description is vivid. Cancer cells are like rabid dogs, unscrupulously absorbing their host's nutrients to grow stronger, then dividing into more cancer cells..."
"But this presents a problem. If the host is not a cultivator and does not have enough nutrients in their body to supply the cancer cells, they will be drained dry by the cancer cells. This is why cancer is so difficult to deal with."
"The common method to deal with cancer cells now is to surgically remove them, or use chemotherapy to inhibit their growth. But these are superficial remedies, not root cures."
"Cancer cells are a mutation of cells, but I prefer to call it an evolution of cells. Just like the cells in your body, your cells are tens of thousands of times more vigorous than ordinary people's. They are fine within your body, even thriving."
"Simply put, the stronger you are, the more vigorous your cells are. And the vigor of your cells will, in turn, feed back to you, making you even stronger. They prosper and decline together."
"But if your cells were to appear in an ordinary person's body, what do you think the consequence would be?"
Liu Yilin said to Ning Beichen.
"Most likely, they would explode."
Ning Beichen replied without thinking.
"Exactly. The situation with cancer cells is similar. I cannot say this mutation of cancer cells is good, but regardless of whether it is good or bad, the principle is the same: ordinary human bodies cannot provide enough energy for the cancer cells, which leads to the cancer cells backfiring on the host. That's why cancer has become an incurable disease." Da Feng Novel Network.
Ning Beichen nodded in agreement. Although he was not a scientist, he understood such simple and clear logic.
"Then have you thought of any way to cure or prevent cancer cells from backfiring?"
Ning Beichen asked her.
"I actually have. Look, this is an experiment I conducted with a medicine made from an ancient pill formula you gave me."
Liu Yilin had Ning Beichen continue to observe the image in the microscope.
Liu Yilin took a fine syringe and injected a small amount of white liquid into the cancer cells. The cancer cells, as if attracted by something delicious, swarmed towards it ravenously.
After about a minute, the cancer cells suddenly lost their vigor. They did not die, but astonishingly degenerated into ordinary cells.
The entire process was short, yet it made Ning Beichen's blood boil.
No matter how powerful he became, he was still human. If he could help humanity, Ning Beichen would undoubtedly do so without hesitation, as it was a deed of immeasurable merit.
"Yilin, doesn't that mean you've succeeded? As long as cancer patients take your medicine, the cancer cells in their bodies will turn into ordinary cells."
Ning Beichen said with immense excitement.
"In principle, yes, but..."
Liu Yilin paused after saying "but," implying there was a problem.
"But what?"
Ning Beichen was rather impatient.
"The issue of the medicinal ingredients."
Liu Yilin said helplessly.
"What's wrong with the medicinal ingredients?"
Ning Beichen seemed puzzled.
"The ancient pill formulas are not complicated, but the medicinal ingredients used are truly excellent. But look around now, are there any such ingredients? Ninety-nine percent of the medicinal ingredients on the market are artificially cultivated. They simply cannot achieve the effects of the ingredients in the ancient pill formulas."
"The ancient pill formulas often require medicinal ingredients that are a hundred, or even several hundred years old. In ancient times, this was not a significant problem."
"But now, let alone a hundred or several hundred years old, finding a ten-year-old medicinal herb would be a miracle."
Liu Yilin said with regret.
"Are the artificially cultivated medicinal ingredients truly useless?"
Ning Beichen asked unwillingly.
"Heavenly materials and earthly treasures are called so because they have grown for a sufficiently long time, absorbing the spiritual energy of heaven and earth over a long period. Only then do they become heavenly materials and earthly treasures. Do you think artificially cultivated items can be considered heavenly materials and earthly treasures?"
Liu Yilin said helplessly.
After hearing this, Ning Beichen finally understood Liu Yilin's meaning completely.
In short, she had a way to overcome cancer cells, but a clever cook cannot cook a meal without ingredients.
Ning Beichen remained silent, his eyes closed, pondering a solution.
Heavenly materials and earthly treasures cannot be cultivated. Even if they could, it would take an extremely long time. Ning Beichen could not afford to wait, and neither could Liu Yilin.
What is spiritual energy of heaven and earth?
In fact, this is a pseudo-term, like a name. You can understand it as the spiritual energy of heaven and earth, the energy of heaven and earth, the mysterious elements of heaven and earth, and so on.
Why do heavenly materials and earthly treasures grow in uninhabited deep mountains and old forests? Because the spiritual energy of heaven and earth is more concentrated in those places. After a hundred, several hundred, or even thousands of years of absorption, they become heavenly materials and earthly treasures, not because the medicinal herbs were naturally heavenly materials and earthly treasures from the start.