Gongsun Yu knew that Su Wu would ask him this question sooner or later, but he had already thought about how to answer him, of course, it couldn't be said that he had the thinking and memory of a current person, let alone the old man in his dream, so he said with a smile:

"Actually, I have heard of it a long time ago, in the third year of your detention in the Xiongnu, it should be the third year of the Tianhan Dynasty, when the emperor sent an envoy to the Xiongnu, and there was a friend in this mission, who told me; He said that it was their mission that met Shan Yu and asked to see you, and Sonny was still alive, but the Huns were lazy in every way, saying that you had been killed; They didn't believe it, so they searched all the way to Beihai, and found a village near the place where you shepherd, and the villagers told them that there was a Han man who was shepherding sheep here, and he had been holding an envoy in his hand, and those villagers also took them to the cellar where you lived to find you, but at that time, the Huns hid you first, and they couldn't see you, but they saw an envoy from our dynasty in the cellar. ”

After listening to Gongsun Yu's narration, Su Wu's old tears were overflowing, and suddenly he coughed and whezed, which seemed to touch the pain in his heart, Su Xiuyou hurriedly stepped forward to pat his back, Yang Yun also came up and stroked his chest, after a while, Su Wu calmed down, only to see him say slowly: "Hate that ten-captain, he was the one who took me away that day, just now I thought I was going to kill me, I didn't have time to take the envoy in my hand, they forced me away, it seems that the sky is still endless, if that day really takes the envoy away, Then they don't know it's me, but why didn't the court send someone to ask for me? ”

Gongsun Yu has always wondered about this question, he just heard Lu Ji say that after coming back, Jiang Chong told Emperor Wu about it, but then there was no follow-up, it is estimated that Emperor Wu was busy with other things later, and he couldn't take care of it, or Emperor Wu really believed that Shan Yu's words, thinking that Su Wu was killed, and after a moment of silence, he said: "I asked that friend, he said that at that time, the envoy of the Empress An'an had reported this matter to the emperor, and it is estimated that the emperor could not find evidence, so the matter was put on hold, and at that time he was dealing with the matter of Li Ling, and later it was the matter of Prince Wei, So gradually no one mentioned it. ”

When Su Xiu heard this, he also hurriedly said: "Yes, second uncle, if it wasn't for Doctor Gongsun to talk about it, we wouldn't believe it, the eldest uncle and father thought you were gone, and I remember that I had to worship you when I was a child." ”

"Haha..."Su Wu coughed and wheezed again, and only eased up after a while, so he said: "I really want to thank Doctor Gongsun for this matter, and there is nothing valuable at home, I thought about it for a while, when I was shepherding sheep in Beihai, I made a few wool pens in my spare time, if you don't dislike it, I will send one to you as a souvenir." ”

After speaking, he instructed the servant to bring a wool pen over and hand it to Gongsun Yu, who refused to ask for it at first, and hurriedly said: "Master Su, I can't help it, I can't afford such a valuable thing." ”

"Doctor Gongsun, you can afford it, if you don't say it, I estimate that you will die in a foreign country, it can be said that you are my reborn benefactor, and now you are still helping me to treat my illness, I have nothing to repay, so I have to send this pen to you."

Su Xiu also took the wool pen, stuffed it into Gongsun Yu's hand, and said, "Doctor Gongsun, this is the second uncle's intention, you can accept it." ”

Yang Yun also stepped forward and said, "Doctor Gongsun, you can accept it, otherwise Master Su will not be happy." ”

Seeing this scene, Gongsun Yu had no choice but to accept this wool pen, and when he turned out the wool pen, he gently stroked these sheep hairs from thousands of miles away with his hand, and said excitedly: "Thank you, Lord Su, I heard that you only brought five wool pens, one for the emperor, one for the great Sima general Huo Guang, and one for the left general Shangguan Ji, and now send one to me, this gift is too heavy." ”

Su Wu said with a smile: "It's not heavy, it's not heavy at all, Doctor Gongsun, your character is really good, no wonder Lord Sima likes you so much." ”

"Thank you for the compliment, Lord Su, your illness is not well yet, I will prescribe three more doses to you."

After Gongsun Yu finished speaking, he opened: ephedra, perilla seeds, almonds, orange peel, mulberry white peel, licorice, skullcap, coltsfoot, banxia and ginkgo and other ten kinds of herbs, this recipe is called Qianjin Dingchuan Fang, which Gongsun Yu saw in the "Canggong Clinic", and had to have a lot of external cold and lung diseases.

Seeing that Su Wu had calmed down a lot, Gongsun Yu hurriedly asked: "Master Su, I have always admired how you survive in an environment like Beihai, I heard my friend say that they contracted typhoid fever when they arrived in Beihai, and hundreds of people in a mission were infected, and later in the village near you shepherd, the local shaman used their stone medicine to save the lives of more than 100 people in the mission, it is conceivable that life there is really hard." ”

Su Wu was very emotional when he heard Gongsun Yu's story, and after a moment of silence, he said slowly: "Which of your friends is right, they did get there, there are a few witches in that village, the local people are called shamans, I was also infected with typhoid fever when I first arrived there, and they also used that stone medicine to cure me." ”

"But did you know that it was these stone pills that almost made me collapse?"

Hearing Gongsun Yu's words, Su Wu felt very strange, but judging from Gongsun Yu's serious expression, he shouldn't be telling a lie, why is it? Of course, Su Wu has been in Beihai for 19 years, and he doesn't know a lot of things that have happened in Chang'an City, and occasionally he will hear others say, but he only hears superficial things, and he doesn't know what the specific situation is, so he asked: "Doctor Gongsun, how do you say this?" ”

Gongsun Yu sighed loudly, and after a while he said: "Master Su, do you know, this stone medicine is prepared from five kinds of ores, some people call it Wushi San, it is indeed a good medicine for typhoid fever; But this medicine and even the medicine of yang, if you take too much, people's spirits will be very excited, of course, they will make some vague thoughts, although they look very energetic after taking too much, but there is a sequelae that is a headache, and the whole body will be hot. ”

Su Wu felt very strange after hearing this, he also took it when he was in Beihai, but there was no situation as Gongsun Yu said, so he asked: "When Wu Zheng Beihai, the villagers took this medicine for me, but I don't have the situation you said. ”

Gongsun Yu smiled and said: "Master Su, you don't know, Beihai is a bitter cold place, of course there is no situation I said after taking it, but Chang'an City is different, taking too much will produce hallucinations, and will do things that ordinary people can't do." ”

Su Wu felt that what Gongsun Yu said made some sense, but what did he say about the almost collapse of our dynasty? With questions, he asked again: "You just said that this medicine almost pushed me towards collapse, what happened?" ”