Lu Ji and Gongsun Yu held torches and continued along the secret passage in the northwest direction, which was about three feet wide, but it was very short, and it was an uphill road, and they walked about four zhang to the end. There were walls on three sides at the end, and Lu Ji held a torch to look around for an exit, but he saw him banging on the three walls vigorously with his hands, hoping that the wall would loosen and be able to open, but after knocking again, he still didn't find it.

At this time, Gongsun Yu was tired of holding the torch with his left hand, and wanted to change his right hand to hold it, but when he changed hands, his left hand touched the top of the secret passage, and he felt that the top seemed to be a wooden plank, so he held it hard, and it was really a wooden plank, and the wooden board could still move upward. Lu Ji also came over to help, so the two of them worked together, and the whole wooden board turned over, oh my God, it turned out that there was another layer on it.

The two of them climbed up to the top and found a small square room, one zhang long, five feet wide, and about five feet high. They continued to look for an exit, but Lu Ji still used the previous method, knocking on the wall all around, but still did not find any looseness in the wall. But the west wall is a bit peculiar, the Jomon bricks are only half high, and the top is still yellow clay, and the center is recessed. Lu Ji took a light with a torch and found that it was also a hole, he reached in with his hand and touched it, and felt that the hole was like a big stone blocking, so he tried to push hard and found that the stone would move forward. At this time, Gongsun Yu also came to help, and the two of them pushed together, and the big stone was really able to move forward, push again, move forward a little more, and finally, a speed of light penetrated through the gap in the stone.

Finally found an exit.

Lu Ji and Gongsun Yu glanced at each other and smiled knowingly. They pushed the stone out harder, and the hole finally opened, and Lu Ji climbed out first, and then dragged Gongsun Yu out.

It turned out that there was a stone tablet in front of the cave entrance, and blocking the cave entrance was actually a stone, which was not very tight, but the front of the cave was overgrown with weeds, and no one found out that it was a cave entrance.

Lu Ji and Gongsun Yu stood at the entrance of the cave and took a look, it turned out that this was already outside the city wall of Chang'an, there was a small road in front, it was estimated that the patrolling soldiers stepped out, and then the moat was ahead, and the specific direction should be the mass grave between Yongmen and Hengmen, here is a bend again, overgrown with grass and trees, usually few people come, it is estimated that even the patrolling soldiers rarely come in the mass grave to inspect it.

Lu Ji looked at the entrance of the cave, and admired the predecessors who dug this secret passage when they set the entrance of the cave here, it was really wonderful, I saw him pointing to the entrance of the cave and said to Gongsun Yu: "Brother, you see, the place where the entrance of the cave is actually a tomb, the handwriting of the stone tablet in front of the entrance of the cave has been blurred, and the general people think that this is an ancient tomb that has not been claimed for a long time, and it is very simple, even the tomb robbers do not want to remember, here is a mass grave, and there are many graves, and the general soldiers will not come in to patrol to see, it is really wonderful to choose this location." ”

As he was talking, he immediately heard the sound of footsteps coming from the north, so the place was a bend, and people could hear the footsteps before they arrived, Lu Ji hurriedly pulled Gongsun Yu back into the hole, and then blocked the hole with stones.

Gongsun Yu was afraid that Yi Susu would wait too long, afraid that she would be in a hurry because she thought something was happening, so he returned the same way with Lu Ji, and when they walked out of the entrance of the well to take back the wooden ladder, Lu Ji used the wooden stick to push down the protruding part of the Jomon brick at the ninth position of the first month, only to see that the brick wall at the entrance of the cave was closed at the same time.

Originally, this secret passage started from the octagonal well in the courtyard of the medical hall, and extended along the northwest direction through the city wall to the outside of the city, and the location of the secret room in the middle was estimated by Lu Ji to be just below the city wall. Such a hidden secret passage is estimated to have been dug at the beginning of the construction of Chang'an City, which may have a military purpose, and the middle secret room should have been expanded later.

Yi Susu listened to Lu Ji and Gongsun Yu tell about the situation in the secret room, and also wanted to go down to take a look, Lu Ji reminded them that it was best not to be known by too many people, especially not to let the government know, otherwise there would be a disaster of death.

At this time, Lu Ji also had a new idea, so he said: "Brother, Su Su, Ci Qian has been killed, but I can't help him collect the body, it's a pity, the prince and they have always regarded me as Su Wen's comrade, and they probably won't let me go, and I can't hide here all the time, so sooner or later it will affect you, so I want to escape from this secret passage tonight." ”

Gongsun Yu also knew that the situation in Chang'an City was not very stable now, and he originally wanted to escape, but after thinking about it, he and Yi Susu were both ordinary people, and no matter how chaotic Chang'an City was, it would not be affected. Lu Ji is different, he is Jiang Chong's senior brother, the two of them are often together, and they have an inexplicable relationship with Su Wen, and they also let the emperor take his elixir of immortality, if the prince's side wins in the end, he will definitely not be able to escape, so he nodded and said: "It's okay, while the situation is not clear now, it is beneficial to leave early, Mr. Lu, I still have something I want to ask you, is the elixir of immortality taken by the emperor outside the palace your golden stone pill?" "Changsha

Lu Ji said with a wry smile: "Actually, the name of the Immortal Pill was given by Su Wen, at the beginning, the emperor suffered from typhoid fever, and he was cold, and the doctor couldn't see it well, after Ciqian recommended Jin Shi Dan to the emperor to take it, the illness was immediately cured, and since then the emperor has liked Jin Shi Dan, and the more he takes it, the better his spirit, so Su Wen gave him the name Immortal Pill, and I also became a fairy, haha." ”

"Is the Golden Stone Pill made from grinding five kinds of ores?"

"Yes, it was taught to me by the Huns Tan He, when I went to the Xiongnu with Ciqian that year, the emperor also gave me a task to find Su Wu and Li Ling; When Ci Qian heard you say that Su Wu did not die but was shepherding sheep in Beihai, she questioned the Xiongnu Shan Yu, Shan Yu did not dare to admit it at first, Ci Qian proposed to go to Beihai to find, and later Shan Yu was forced by us to ask hard, and finally agreed that we should go to Beihai to find; When passing through Beihai, most of our team had typhoid fever, so they stayed in the village of the local Huns, these Huns were different from other Huns, they were not good at riding and shooting, but they were good at fishing, they could sing and dance, and there were many wizards in the village, all of them would go to the gods, talk to the gods, and when they saw that we had typhoid fever, they helped us exorcise evil spirits and get rid of diseases, and also gave us a kind of medicine they made their own medicine, and soon our typhoid fever was cured; One of the sorcerers was Tan He, who said that he admired our Central Plains culture and wanted to come to Chang'an with us and teach me how to prepare this medicine. ”

Of course, Gongsun Yu knew that this kind of medicine powder was later called Wushi San, which could cure typhoid fever, as early as the Spring and Autumn Period and the Warring States Period, and it was not passed over from the Xiongnu, it is estimated that Lu Ji came to Tan He, the Huns, who knew this formula, and said: "Mr. Lu, this kind of medicine powder should be Wushi San, this kind of medicine powder should have appeared in the Spring and Autumn Period, and it is poisonous if you take too much." ”

Lu Ji hadn't heard of the name Wushisan, but he thought that it was quite appropriate to name it with Wushisan, so he said: "I haven't heard of Wushisan, but these five ores are all the medicine of the Yang, which is more or less toxic, but after I improved it later, adjusted the proportion, added two more medicinal materials and made it into a pill, the toxicity is much less, and this is also due to Lu Fu's concoction, it was he who taught me how to master the heat and time, so that I could make it." ”

Yi Susu also helped Lu Fu make Jin Shi Dan together, knew the formula and medicinal properties, and just heard Lu Ji and Gongsun Yu talking about Jin Shi Dan's life and next life, so he interjected and said: "Mr. Lu, I heard that why the emperor wants to thoroughly investigate Wu Gu is because he dreamed that there were thousands of little wooden people chasing and killing him, and a while ago he said that he saw someone wearing a sword into Jianzhang Palace, is all this related to taking Jin Shi Dan?" ”

Lu Ji looked at Yi Susu, and secretly admired her medical skills in his heart, and she could guess the approximate cause just by participating in the preparation of this medicine, so he nodded and said: "Susu, you have a point, in fact, the toxicity of Jin Shidan is very small, and I have taken it, and I don't feel poisoned; Qu Zi once said: Deng Kunlun eats jade, lives with heaven and earth, and shines with the sun and the moon, and this jadeite is a stone medicine; It is estimated that the emperor overdosed and had a delusion, which caused a catastrophe, but I didn't expect that my pill was working. ”

It can be seen that Lu Ji is also very self-blaming, because his elixir caused Liu Che to take too much and hallucinate, plus the villain was provoking, and then he suspiciously wanted to thoroughly investigate the witch Gu, and as a result, he found the Tai Uterus, which caused Jiang Chong to die.

Gongsun Yu hurriedly stepped forward to comfort Lu Ji: "Mr. Lu, you are also being used by Su Wen's gang of chamberlains, I remember that when my uncle Gongsun Qing left Chang'an, he advised me to stay away from these villains and not to get involved, and now looking back, it seems that my uncle is very accurate; Now that it's all over, don't be too sad, think about the headache and fever caused by overdose like Your Majesty, and often hallucinations, what medicine can be relieved? ”

Lu Ji thought for a while and said: "This medicine and even the medicine of yang, if you take it excessively, you will feel hot and burn your lungs and intestines, and you will get sick; In addition, after taking it, it can make the energy a hundred times more energetic and energetic, but this will overdraw the vitality. ”

"Oh, I see."

After listening to Lu Ji's analysis, Yi Susu suddenly realized: "It is said that it is a hundred times more energetic and energetic, but it turns out that it is overdrawn first; Then you have to replenish qi, and the Huairen Pill developed by my father is the best medicine to replenish qi, strengthening the kidneys and replenishing qi, so Huairen Pill is a golden stone pill that can solve you. ”

Gongsun Yu also agreed: "Su Su said that it makes sense, if you overdraft your vitality too much, you have to replenish your qi, and the next time Imperial Doctor Lu comes to summon you to the palace to see a doctor, you can analyze it for him, and let him use Huairen Pill to try to treat His Majesty." ”