It's good to exchange marriages. My sister eats coarse food while I wear gold and silver.

"Don't you know? My biggest wish is to encounter a zombie. Ah, no, I mean... a case that can't be found in medical books. The research value should be too high." Qin Xuanyue said with a smile, "Besides, as the future master of Yaowang Valley, you are in trouble now, of course we have to help, right, Wanwan?"

"Yes, I also brought the little wolf with me."

"Little Wolf?"

While Yuan Buwei was puzzled, she saw Gu Wan move aside, and then a silver wolf about two meters long, with a howl, pounced on Yuan Buwei.

"Ouch, stop licking me, ouch." Yuan Buwei was shocked by the enthusiasm of the silver wolf and put her hands up to cover her face. "Senior Sister Wanwan, are you sure you have a wolf? Why are you so enthusiastic towards me?"

"This wolf was originally given to you to raise. It was because you left in such a hurry last time that I had no choice but to give the little wolf the clothes you left in the valley. I also talked to him every day and he remembered it. Now that he sees you, he is naturally enthusiastic." Gu Wan pushed the little wolf away, patted his head and said, "Good boy, she is the master I told you about. You should follow her from now on. Wherever she goes, you should follow her. If anyone bullies her, you should show them your teeth and scare them."

"Awooo." The silver wolf barked, and the snow-white tail behind its butt wagged happily.

"Senior Sister Wanwan, I'm in the capital and it's not good to have such a big silver wolf following me, right?" Yuan Buwei got up. She was not afraid of the silver wolf, but she was afraid that it would scare passers-by.

"When you go out, you create your own identity. From now on, when people mention you, they will say that you are a female healer with a silver wolf by your side. It sounds very domineering." Qin Xuanyue walked to the desk and picked up the medical book that Yuan Buwei was halfway through. "You, don't look for it anymore. When you sent us a letter by carrier pigeon that day, a group of us started looking through medical books. We searched through all the books in the library, but we couldn't find the corresponding case. Later, we went to find Uncle Han, and he said that this symptom is most likely poisoning. If we can only match the toxin, we can also match the corresponding antidote. Instead of staying in the valley and worrying, it's better to come here to help you, so Wanwan and I are here."

"I am naturally happy that you can come, but right now, the situation in the capital is unstable and may explode at any time."

"No, no, Bu Wei, the zombies in the stories I told you usually get infected within a stick of incense after being bitten. But the people poisoned in the capital are different. They all have a certain incubation period. Have you calculated how many days it takes for a patient to get sick?"

"Let me see."

Yuan Buwei took out the medical records and began to read them, finally stopping at a line of words: "The fastest time for my mother to recover is three days, and the slowest is five days."

"Everyone's physique is different. After the toxin invades the body, three to five days is considered fast, but at least it can buy us some time." Gu Wan looked at the two of them and said, "However, we still need to do one thing."

"what's up?"

“Catch a patient, then catch some animals to see if there is any zoonotic risk.”

"As expected of Wanwan, you are so thoughtful."

“Senior Sister, Senior Sister Wanwan…” Yuan Buwei’s eyes felt a little hot.

“Oh, now is not the time to be sentimental. Let’s get this matter under control quickly. I’ve already notified my two brothers. After they finish their work outside, they will rush over to join us.” Qin Xuanyue’s face was full of fighting spirit. “This seems to be the first time that our Medicine King Valley has mobilized as a whole. This time, I want everyone in the world to know how powerful Medicine King Valley is, hahahaha.”

The senior sister's optimism and enthusiasm infected Yuan Buwei, and she nodded: "Well, I'll do it now."

When Lu Sui came back and heard that they needed to arrest patients, he immediately led people there himself, and soon captured all the men, women, and children.

"Young Marquis Lu, you have a good brain. I only said to arrest someone, but you caught him so carefully." Qin Xuanyue looked at the four patients who were tied up but were in a state of excitement and trying to break free from the hemp ropes. She stood half a meter away and observed, "The eyes are not red, but they are in a very manic state and want to eat human flesh and drink human blood. This symptom is a bit like rabies?"

"Rabies?"

Upon hearing this, Yuan Buwei immediately asked someone to bring water: "Li Yan, be careful and give them some water."

"Yes."

As a result, when Li Yan brought the water close to them, three of the four people showed fear. One wanted to drink the water when he saw it, but he didn't drink it with his mouth. He licked it with his tongue. As a result, he licked for a long time but didn't drink a drop of water.

"Xuan Yue, this seems to be the symptom of rabies you mentioned." Gu Wan said.

"Young Marquis Lu, please help us check how long it takes for patients to die naturally from the time they become ill to the time they die, if no one is trying to stop them."

"Big sister, the first person to fall ill was Yuan Jinse, but she is still alive now, but she has completely lost consciousness. If anyone gets close to her, she will become like a ferocious beast and bite anyone who approaches her. However, because she has not eaten or drunk for a long time, she has been very weak in the past few days." Yuan Buwei said.

"It seems that this poison must be mixed with many kinds of poisons, and it took a lot of effort to develop." Qin Xuanyue touched his chin and thought, "It's interesting. It's such a carefully planned poisoning. I really don't believe that it wasn't done by the Shan family."

"Xuan Yue, I think we should develop an antidote as soon as possible. Even if it doesn't work right away, it would be good to develop a drug that can suppress the spread of the toxin."

"No, we first need to make a device that can screen people for infection, then control them in advance and take inhibitory drugs. Only by taking both approaches can we minimize casualties." Qin Xuanyue clapped her hands, "Let's do this, Young Marquis Lu, can you find a place, preferably one that can accommodate thousands of people?"

“This may be a bit difficult.”

"Lu Sui, do you know how to find a vacant lot outside the city, and then have everyone build a few thatched huts, tents or something, and then build a fence around it and find someone to guard it?" Yuan Buwei suggested?

"That's a good idea. I'll do it now."

"Young Marquis Lu, wait a moment." Qin Xuanyue called him and took out a porcelain bottle from her bosom and handed it to him. "This medicine can cure all kinds of poisons. I'll give it to you and your confidant. Although I don't know if it will be effective against this poison, it's still necessary to take precautions."

“Thank you, Senior Sister.” Lu Sui accepted the gift with a fist salute and took Li Yan to do some work.

"Bu Wei, I brought a lot of detoxification pills. Please distribute them to everyone in the mansion first. They are all strong laborers now. No one can get into trouble. Otherwise, if we rely on just a few of us, we will definitely die of exhaustion."

The eldest sister is such an optimistic person, she is not afraid even if the sky falls.

Because the preventive measures were taken in a timely and effective manner.

Within a month, the number of poisonings was under control.

The government and other parties were given a brief respite.