"Look up!" A total of three words were written on the note thrown into Li Xiu's carriage, but when he saw the handwriting on the paper, Li Xiu showed an ecstatic expression, because he recognized at a glance who the handwriting on the paper was, after all, the other party's handwriting was too easy to read, and few people could write the words so arrogantly like him. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

At that moment, Li Xiu poked his head out and looked up, and sure enough, he saw that above the restaurant on the side of the street, a big bearded face was looking at him with a smile, it was a bearded customer who had not seen him for nearly two years. When the bearded guest saw Li Xiu, he immediately raised his glass to Li Xiu, and then a person appeared opposite the bearded guest, who was Zhang Shiyi, who escorted Li Chengdao and them to the Americas.

Seeing Zhang's father and son, Li Xiu couldn't help laughing, hurriedly jumped out of the carriage and went to the restaurant, but soon saw the bearded guest and Zhang Shiyi in the box on the second floor, only to see their father and son sitting opposite each other, and saw Li Xiu also stood up, but Li Xiu was surprised but very surprised: "Uncle, eleventh brother, since you have come to Chang'an, why don't you go to me, especially the eleventh brother, your Qu Yike is living in my house!" ”

"What, Qu Yi and their mother and daughter are also in the city, that's great, take me to meet them!" Zhang Shiyi couldn't help but exclaim in surprise when he heard Li Xiu's words.

"What's the panic, it's useless, since Li Xiu is here, are you still afraid that you won't be able to see your wife and daughter?" Unexpectedly, as soon as Zhang Shiyi's words fell, he was glared at by the bearded guest and reprimanded, which made Zhang Shiyi immediately honest, don't look at him outside, he is quite bold outside, but in front of the bearded guest, he didn't even dare to make a sound.

"Hehe, Brother Eleventh doesn't have to worry, Qu Yi and her mother and daughter live in the princess's mansion in the city, but your girl is too greedy, and now she has grown into a fat girl!" Li Xiu said to Zhang Shiyi with a smile at this time, he could understand Zhang Shiyi's mentality as a father, so he specially introduced the situation in his family to him.

"That's good, it's okay to be fat, and when you grow up, you will naturally lose weight!" Zhang Shiyi said excitedly again when he heard Li Xiu's words, but as soon as he finished speaking, he secretly glanced at the bearded guest next to him, and then wisely closed his mouth and stopped talking.

"Uncle, now that Chang'an City has been under martial law, although it has been much looser now, I'm afraid it's not easy for you to come in, right?" Li Xiu asked curiously again at this time, after all, he usually needs to go through a strict investigation when he enters and leaves Chang'an City, not to mention those who don't have any official positions.

"Don't mention it, we didn't come to Chang'an City, but we couldn't get out at all!" I saw that the bearded man slapped his thigh angrily at this time, and his face was full of annoyed expressions, and then he told the story of their father and son.

It turned out that they started their journey from the Americas last fall, and when they came to Datang, it was almost the New Year, but the two of them had an urgent matter to go to Taiyuan, and when they came to Chang'an, it happened to be after the Spring Festival, and they came from the north at that time, and it was almost dark when they came to Chang'an City, if they wanted to go to Li Xiu's place, it was estimated that it was already the second half of the night when they arrived, so they discussed it with the father and son, and simply went into the city to find an inn to rest for one night, and planned to see Li Xiu tomorrow.

On the night they stayed in Chang'an, the news of the outbreak of smallpox in Qingtian County was sent to Li Shimin's desk, followed by martial law in the whole city, and no one was allowed to enter or leave Chang'an City, and as a result, the bearded guest and their father and son were blocked in Chang'an, and they only knew that Li Xiu's family lived outside the city, but they didn't know that Li Xiu moved to the princess's mansion with his family that night, and it wasn't until today that Li Xiu came to Xishi, and they accidentally saw him in the restaurant.

"Virtuous nephew, during this time, there have been rumors in the city that you have found a way to conquer smallpox, what is it called cowpox, but now the smallpox in Qingtian County has been controlled by the imperial court, I don't know if it's true?" After the bearded guest finished telling what happened to him, he immediately asked Li Xiu with great interest.

"Hehe, this thing is indeed true, but planting cowpox can only prevent smallpox, after planting once, you will generally not be infected with smallpox again for a lifetime, as for the treatment, although it may be effective, but the conditions are too harsh, so the main thing is prevention!" Li Xiu explained with a smile.

Although the incubation period of smallpox is longer than the time for cowpox to obtain immunity, it is only a few days, and it will be missed if you are not careful, so the treatment of smallpox is still based on prevention.

"That's great, but I'd love to know what cowpox is and how to grow it?" Hearing this, the bearded guest asked curiously again.

For the murderous name of smallpox, the bearded guest also heard it since childhood, to make an inappropriate analogy, smallpox in the hearts of the ancients, like a cancer in later generations, it can be said that everyone talks about smallpox, and now Li Xiu has finally solved this problem, which makes the bearded guest naturally very curious.

"This ......," Li Xiu hesitated when he heard this.

Although the name of cowpox has been spread, the specific method of planting cowpox has been kept secret by the imperial court, which is why Fang Xuanling is personally responsible for this matter, and gathers all the cattle in the barracks to raise and make cowpox powder, after all, it is not only Datang that is threatened by smallpox, not to mention that the countries around Datang are also threatened by smallpox, so the method of planting cowpox, especially the manufacturing process of cowpox powder, has always been top secret. After all, this method may be able to bring some benefits to Datang.

It is worth mentioning that the name cowpox was also proposed by Li Xiu for the first time, and no one knew what cowpox was before, so it could only be guessed from this name and the imperial court's measures to gather cattle that cowpox must be related to cattle, but as for how to plant cowpox, the process of planting requires the use of cowpox powder, etc., not many people know about these details.

"Uncle, the specific method of planting cowpox still needs to be kept secret, it's nothing to tell you, I just hope you don't spread the word!" Li Xiu hesitated for a moment and finally spoke, anyway, the bearded guest usually doesn't stay in the Central Plains, and he is not an outsider, so Li Xiu decided not to hide it from him.

"Haha, don't worry, nephew, I'm just curious about this cowpox, and I won't spread it after I know it!" The bearded guest also laughed and assured.

In fact, Li Xiu wanted to ask the bearded guest about Li Chengdao and their situation at this time, but after meeting, he never had a chance to speak, and now he could only satisfy the bearded guest's curiosity before asking, but since Zhang Shiyi had returned safely, Li Chengdao and they should have arrived in the Americas smoothly.