After investigating the three towns' manufacturing plants, Su Yunchu looked at the Lijia river not far from the three towns, and then looked at the water used for cooling and various purposes when making weapons next to the three towns' manufacturing plants. These water were led from the Lijia River, and there were other ways to discharge sewage, which did not intersect or even reverse the Lijia River, but, The problem now is that a small part of the sewage flows into the Lijia River and only penetrates into the Lijia river through the soil layer. These infiltration does not seem to be much, but with the accumulation of time, the sewage from the three Town manufacturing plants used to build weapons is constantly infiltrated into the Lijia River, and the harm of the sewage is that people nowadays, There is no concept of pollution at all, and there is no concept of heavy metal poisoning. Therefore, we do not pay attention to this matter, or even think it is understandable.

However, the most easily overlooked place is precisely the place that should be paid most attention to.

Zhao Yingli brought back some of the water in the upper reaches of the three towns of Lijia River and the sewage from the manufacturing plants in the three towns. Su Yunchu probably understood the cause of the outbreak of the disease called plague, but he could not make a final judgment.

We can only take these things back and study them. However, due to the lack of technology, it is estimated that this research will take more time, or in the end, whether we can find a solution will be a difficult problem. After all, there is no sufficient medical level and corresponding drugs. If it is really heavy metal poisoning, it is really too difficult.

However, at the beginning of Su Yun, Kan Kan ordered Ying Li to install these water sources, and a cold, thin and dignified male voice sounded, "young master Yun, do you doubt that the plague in the three counties is related to the water source?"

Su Yunchu looked up and saw the man running in black and standing not far from her. Across such a short distance, she could clearly see the expression on his face, dignified, serious and cautious.

Although I don't know when Murong yuan appeared, Su Yunchu didn't have much difference. For Murong yuan's inquiry, I didn't see a sudden person's surprise. It's like that along the way, she and the corresponding investigation, Murong yuan always participated, pursed her lips, and Su Yunchu spoke, "There is this doubt, but it is still uncertain. We need to go back and study it further."

Murong yuan was not surprised by Su Yunchu's calm attitude, but nodded, "if there is any need, childe Yun can put forward it."

This means that he let Su Yunchu participate in the treatment called plague?

Su Yunchu knew that Murong yuan was able to do so probably because Chen Jing mentioned her to him. It's good to think so. Su Yunchu didn't go to Lianghui immediately, but turned to Hongchuan and appeared in front of Chen Jing first. Naturally, she thought about it. If she went directly to Lianghui, she might have some trouble in front of Murong yuan, but if she passed It will be much easier to be introduced by another person.

But Su Yunchu raised his eyebrows. "Can you trust me?"

Murongyuan just looked at Su Yunchu for a while and then continued to say, "young master Yun just let go. It's already here. Young master Yun is an opportunity."

Su Yunchu chuckled, "the prince is very energetic. In this case, Yunhan will go all out."

Murong yuan stopped talking to Su Yunchu. Su Yunchu cleaned up the water and soil here, and returned to Lianghui with Murong yuan. When he came, both sides were two people and two horses, but on the way back, he became four people and four horses.

Murong yuan thought that young master Yun was the woman who claimed to be Miss Yun at the beginning, but now when he saw it, even he was not sure, because Su Yunchu was dressed as a man at this time, and even he was not sure whether it was a woman dressed as a man. Moreover, at such an embarrassing age of 14 or 15 years old, it was difficult for him to recognize it. What's more, when he was in the beginning , because his eyes were hurt, he couldn't help seeing Su Yunchu's appearance. He could only see his vague body shape and unclear breath feeling in the back.

Now, this man... Even he can't be sure.

Moreover, Su Yunchu's camouflage technology does not rely on the technique of changing looks. She can change her demeanor even if she is just the Su Yunchu of her previous life. Therefore, Murong yuan is not completely sure.

On the way back to Lianghui, Murong yuan spoke to Su Yunchu, "I don't know where Prince Yun is and why he appears in this epidemic area?"

Su Yunchu smiled faintly, "it's hard to say where people are. The world is big and the world is home. Besides, Yunhan is a doctor. There is a plague here. Naturally, I want to see it and do my part as a doctor."

Murong yuan listened to this, but he seemed to open his mouth unintentionally, "young master Yun is really a indifferent person. In this way, he is somewhat similar to a person I know. He is no different from the doctor's duty of young master Yun. Unfortunately, the old man has the same surname as young master Yun and the same age as young master Yun, but he is a girl. I wonder if you can know him?"