"You!" The veins on Qin Zhantian's forehead bulged, but no matter how angry he was, Gu Xiuyi could always remain calm.

Zhou Xingyun couldn't afford to offend either side, so he could only smile apologetically.

"Since His Royal Highness the Prince has already stayed at the Siyi Pavilion, I will take my leave first." After saying this, Gu Xiuyi walked out without even looking at Qin Zhantian.

The imperial edict only told him to go out of the city to welcome the guests, but did not say that he should be responsible for the subsequent reception. He just thought that he had done what he was supposed to do, and left the rest to the Minister of Rites.

Qin Zhantian was naturally furious. It was as if he had put all his strength into throwing a punch, but it ended up hitting the air without even a sound.

When Gu Xiuyi returned home, Xie Qingwan was sitting in the front hall waiting anxiously.

"Xiu Yi is back. Did the Second Prince give you any trouble?" Xie Qingwan said as she looked him over carefully from head to toe.

Gu Xiuyi smiled at her and said, "After all, it was the Emperor who sent me there. Once I'm in the Imperial City, he won't dare to openly make things difficult for me."

Xie Qingwan breathed a sigh of relief, "That's good."

"Where are Lingze and the others?"

Xie Qingwan poured a cup of tea, handed it to him and said, "They are all in the queen's room."

That day, Gu Lingze and three others set out together and eliminated the golden silkworm Gu, but today after taking the Queen's pulse, he found that there was still a kind of toxin in her body.

Cheng Jiao really used all his tricks to harm others, and his tricks were interconnected.

"Lingze, how is my father's health?" Qi Junhuai asked anxiously.

"I didn't expect Cheng Jiao to be so cunning. Although the golden silkworm Gu has been removed, I found another poison in the Queen's body."

It was originally thought that the Queen was slow to wake up because of her weak body, but it was not until today when she took her pulse that Gu Lingze discovered the hidden poison.

"What?!" Qi Junhuai was both shocked and angry.

"It is for this reason that the Queen cannot wake up now."

"What, poison?" Qi Junhuai said this with gritted teeth, as if forcing the words out.

"Have you ever heard of the mandragora flower?"

Everyone looked at each other, thought for a while and shook their heads to indicate that they had never heard of it.

"Then there's the intoxicating flower, the dog walnut, the datura, the maple flower..." Gu Lingze listed several nicknames of Datura in a row, but others still shook their heads.

Gu Lingze was a little confused. Since no one had ever heard of it, where did Cheng Jiao get it from?

Moreover, judging from the Queen's current symptoms, it is probably not something that happened overnight. At this rate, it is probably the result of long-term accumulation.

"Lingze, what's the antidote for this poison?" Qi Junhuai asked.

Gu Lingze's difficulty now lies here. If he were in the present world, it would not be difficult to detoxify the datura poison. If he accidentally ingested a small amount and was poisoned, he could just wash his stomach immediately.

But in cases like Junhou, these two drugs can also be injected subcutaneously: pilocarpine or physostigmine salicylate.

But here, there are no medicines, and even if there are, there is no way to inject them. This is the problem.

Gu Lingze sat down and thought carefully. Seeing that he hadn't spoken for a long time, Qi Junhuai became a little anxious. Just as he was about to ask, he was stopped by Zhao Chengmo.

"Let him think about it quietly by himself. There will always be a way." Zhao Chengmo's words calmed Qi Junhuai a little, and he stopped talking.

When Gu Xiuyi came in, the room was so quiet. Gu Feirui quickly made a quiet gesture to him, and then pointed at Gu Lingze, and Gu Xiuyi understood what he meant.

Gu Lingze sat there thinking hard. He had many detoxification recipes in his mind, but for this kind of chronic neurological poison, he really needed to think carefully.

That’s right!

Gu Lingze suddenly had an idea, slapped the table and stood up, "Taiyi Liujin Powder!"

"Lingze, have you thought of a solution?" Several people gathered together and Gu Feirui asked.

"Yes, but to make this powder, you need another herbal ingredient."

"What do you need? I'll get it for you." Qi Junhuai asked anxiously.

"Powder made from the horns of male antelopes."

Qi Junhuai nodded and said, "I'll find a way." Then he turned around and left in a hurry.

"Let's go and find out some news." After saying this, Gu Xiuyi motioned for Gu Feirui to go out with him, but Gu Feirui just stood there motionless.

"Hirui, what are you standing there for? Let's go."

Gu Feirui looked back and forth between Gu Lingze and Zhao Chengmo several times before following Gu Xiuyi out with an unconvinced look on his face.

Gu Lingze and Zhao Chengmo were now accustomed to his daily outbursts of "dissatisfaction". The two smiled at each other and did not take it seriously.

"I'm going to buy other herbs now. You stay here to protect the queen."

"Okay." Zhao Chengmo responded, then took his hand and rubbed it in his palm twice, "Be careful of danger, I'll wait for you at home."

Gu Lingze stretched out his fingers, clasped the other person's big hand, leaned over and whispered something in Zhao Chengmo's ear, then immediately let go of the other person and turned away.

Zhao Chengmo was left standing there in a daze, the heat from his ears gradually spreading throughout his body.

After flirting with her boyfriend, Gu Lingze went out on the street in a good mood. Unexpectedly, as soon as she entered the door of the drugstore, she heard a familiar voice.

"Are all the herbs I want packed?" It was a female voice. Gu Lingze looked at her profile again. This person was Feng Mei.

"All the herbs you want are here. The lowest price is seven taels and two cents of silver." The pharmacy clerk placed the bundle of medicine in front of Feng Mei.

"Why is this stuff so expensive?" Feng Mei muttered as she took out the money, frowning and complaining about the price.

"The main reason is that your herbal medicine contains a herb called Strychnos nux vomica, so it is a little more expensive. Please be careful when using it."

"No need for you to remind me." Feng Mei's tone was a little flustered. She paid the money and left with the medicine bag.

When they reached the door, they passed by Gu Lingze, but Feng Mei had her head down and didn't notice him.

Seeing another customer coming, the waiter greeted him, "What herbs would you like, sir?"

"Five liang of realgar, four liang of orpiment, three and a half liang of alum, and two and a half liang of ghost arrow." Gu Lingze said.

"Okay, wait a moment, I'll get it for you."

Gu Lingze waited for a while, and the pharmacy clerk tied up four paper bags and placed them on the counter. "A total of five taels and seven cents."

Gu Lingze took out a ten-liang silver ingot and handed it to him, "Don't give me the change. I want to ask you something."

The clerk was overjoyed after getting more than four taels of silver for nothing. "Ask me what you want."

"What kind of herbs did the lady who got the medicine before me buy?"

The waiter looked a little troubled. Seeing his expression, Gu Lingze smiled and said, "Don't worry. She used to serve my mother, but after she got married, there was no news from her. I just asked one more question."

The waiter took a look at Gu Lingze's luxurious clothes, and thought he was most likely a young man from a wealthy family. So he did not hesitate any longer and told him about the herbs Feng Mei had just bought.