Yan Yan saw that Li Xi and Li Ran who stayed behind were so young, but these two people came out of the palace, hesitated again and again, and arranged the two of them to the Heyuan near the back garden, she wanted to observe for three days and then decided not to let Jin Niang contact them.

Don't blame her for being selfish, it's a mother's instinct, because she knows that this disease has an incubation period.

However, in order to make up for Li Xi and Li Ran, Yan Yan personally accompanied them to eat and tell stories and sleep, but entrusted Lu Jin to a few maids.

And during this period, she kept taking Qinghe Qingyu to look through the medical books at home, and even Lu You didn't help less, and finally Lu You found the prescription for the treatment of malaria with Artemisia annua from a copy of Ge Hong's "Elbow Reserve Emergency Prescription" in the Eastern Jin Dynasty. ”

Yan Yan saw that this recipe was a little different from what he said, and he was busy ordering Lu You to take this book into the palace to see the emperor, but for the sake of safety, Yan Yan still ordered someone to pick a bunch of Artemisia annua and soak it in water, and then gave everyone in the family some to drink, and drank it for three days.

Three days later, Yan Yan saw that Li Xi and Li Ran had no symptoms, so he brought Lu Jin in, the three children had playmates together, Yan Yan often took them to play when they had nothing to do, what hide and seek, throwing sandbags, telling stories, playing flying chess, and sometimes going to the back garden to catch shrimp or fish for frogs, etc.

Just when Yan Yan relaxed his vigilance and thought that the children were fine, one night Li Ran suddenly had symptoms, saying that he was afraid of cold, his hands and feet were cold, and the skin on his body also had a layer of goosebumps.

The imperial doctor examined Li Ran, and said that it was malaria, and the imperial doctor is currently using the treatment prescription that Yan Yan found from the medical book, before they used a recipe of pig manure and kudzu root water, but that prescription was not only unpalatable, but also not as good as the efficacy of Artemisia annua water.

But Yan Yan always felt that the concentration of this artemisia water was not enough, but she knew that it could be purified by distillation, but the problem was that this artemisinin could not tolerate high temperatures, otherwise, why not decoction like ordinary herbs?

If you can't distill, how can you extract artemisinin from Artemisia annua water?

At this time, Yan Yan carefully recalled his limited knowledge of chemistry, but unfortunately he was still at a loss.

In the end, she could only take a stupid way to directly crush the Artemisia annua with a pounding bowl, take its juice and feed it to Li Ran.

In fact, she didn't know if it was useful or not, but three days later, Li Ran's symptoms were lighter, and just when Yan Yan just breathed a sigh of relief, Li Xi fell ill again, Yan Yan and Imperial Doctor Liu, as well as the nurse and grandmother, waited for the brother and sister for a few days, and finally got out of danger.

At this time, Yan Yan still hadn't seen the crown prince or princess come to pick up the child, and after thinking about it again and again, she felt that this Artemisia annua water still had a certain preventive effect, because these people in the family were basically not infected, and even Lu Jin was fine, so Yan Yan sent someone to a few familiar families and told everyone about this prevention prescription.

After arranging these, Yan Yan entered the palace.

She wanted to visit the Queen Mother and others, and she was more curious about how this disease could suddenly spread from the palace.

According to the usual practice, Yan Yan went to Cining Palace first, and then he learned that the Queen Mother was seriously ill, and the crown princess and the four imperial doctors were guarding here.

Knowing that Yan Yan was coming, the crown princess greeted her, pulled Yan Yan to the side of the room and first asked about the two children, and when she learned that the two children were out of danger, the princess took Yan Yan's hand and cried again, "Sister, thank you for your kindness, I, I knew that you were a pregnant woman but still sent the child over, but I couldn't do it, fortunately... ”

"Don't say that, the princess and sister-in-law, you are willing to trust me and entrust your child to me, this is more important than anything else, and I am fortunate to live up to my mission. By the way, let's not talk about these things first, you tell me about the situation in the palace, how is the queen mother, the emperor and the prince? Yan Yan asked eagerly.

"Speaking of which, your prince's brother said that he borrowed you again this time." After the crown princess finished speaking, she smiled at Yan Yan.

It turned out that the emperor had found out that the malaria was indeed man-made, and the initiator was the Khitans, and the Kong Ming lantern on the day of the Lantern Festival before was actually the Khitan people transmitting a signal to Yeluda, saying that someone would come to save him and let him wait patiently.

And this treatment plan is to introduce malaria into the palace, so that there will be chaos in the palace, and someone will come to rob the Khitan prince while the palace is evacuating.

If it weren't for Yan Yan, this plan would have almost come true.

Because the emperor originally arranged it like this, he wanted to arrange some princes and princesses who were not sick to go to the other garden.

Coincidentally, the two fake eunuchs who pretended to pass on the holy decree to take away the Khitan prince were seen by the two secret guards arranged by Li Ji and captured the two fake eunuchs on the spot.

It's a pity that when Li Ji wanted to interrogate the two fake eunuchs, the two fake eunuchs committed suicide by taking poison.

Fortunately, the two secret guards heard the conversation between the two fake eunuchs and the Khitan prince, it turned out that the Khitan Emperor gave the Jurchens a condition, if they could help them rescue the prince, the Khitan was willing to join forces with the Jurchens to deal with the Great Zhou, and they also had an ally, Western Xia.

The Jurchens were not tempted at first, but when they saw that the Western Xia had occupied the three cities of Great Zhou so quickly, and the Great Zhou side and the Khitan had been holding each other, and there was no progress at all, the Jurchens soon had new ideas.

In fact, because this war was caused by the abduction of the Khitan prince by the Great Zhou at the beginning, this move angered the Khitan, for which the Khitan invested a lot of troops to fight against the Great Zhou, the Jurchens did not show their strength when they saw this, they were waiting for a suitable opportunity, and it was best if the Khitan and Great Zhou forces were seriously damaged and then they would come to reap the benefits of the fisherman.

This is also the reason why Yan Yan suspected that there was no progress in this war, because the Jurchens did not contribute, and the Great Zhou country competed with the Western Xia and Khitan, and it was good to have the current situation.

"Jurchen? Could it be that this matter is related to Concubine Chen? Yan Yan quickly understood the key words.

"My sister is really smart." The crown princess looked at Yan Yan with a little more admiration.

Li Ji didn't get the truth from the mouths of the two fake eunuchs, but he found out that the two fake eunuchs came out of Concubine Chen's palace, and hurriedly reported the matter to Li Cong.

Li Cong ordered someone to interrogate Concubine Chen, but who knew that Concubine Chen insisted that she didn't know, she said that there were more than 20 eunuchs in her courtyard, and some eunuchs were not waiting around at all, and she didn't know them at all.