Zhao Nan waited for news in Chang'an for three days, and there was still no one in the court to solve the mystery, so he hurried to Changbai Mountain to find Liuning and Liubin's master Tieguan Daoren, after explaining the intention, Tieguan Daoist smiled very incomprehensibly, and gave Zhao Nan a tip, asking him to quickly go down the mountain and return to the front line to support**.

After Zhao Nan got this trick, he was suspicious, but the Tieguan Taoist was confident and calm, as if the matter in front of him was not a matter of burning eyebrows.

Tieguan Daoist saw that Zhao Nan was a little hesitant, it was the first time in so many years that someone was skeptical of his words, originally he didn't want to say anything, but this matter was related to the lives of his two apprentices, he had to say more: "I have been practicing the Tao for so many years, and I have my own tricks to help my apprentice, you can hand over this trick to my apprentice as soon as possible, so as to save a life." ”

When Zhao Nan heard this, he could only be suspicious, now, the tips given by the Tieguan Daoist are the only way for them to get out of trouble, Zhao Nan has long had no hope for the court to deal with this matter, and the ministers of the court are all a bunch of pedantic scholars, and no one has come up with a way.

And this layer by layer sent the news from the imperial court to all parts of the locality, and when the knowledgeable people came, it was already too late, Zhao Nan was no longer ready to pay attention to the imperial court, and rushed to the front line with the 50,000 elite soldiers who had already been ordered, and the bag.

The duel between Tuyuhun and ** has entered a white-hot state, there are not many soldiers left in the ** military camp, the situation is precarious, such a dying struggle is to wait for the reinforcements brought by Zhao Nan, and the three generals led by Liuning, Liubin, and Mingfu are already exhausted and physically and mentally exhausted.

Tuyuhun also slowly realized their crisis, those soldiers wearing iron armor have become more and more sluggish, and the armor they wear on their bodies is almost impossible to take off, and they also know that their general trend has gone, and they will soon be shrouded in horse leather.

When Zhao Nan's reinforcements dodged the ambush that Tuyuhun had already laid and rushed to the front line, Mu Zhengni knew that they Tuyuhun was about to come to an end.

The battlefield is unstable, and there are constant turmoil in Chang'an City, no one expected that the final solution to this problem was just a hairy child.

Before Zhao Nan left Beijing, he didn't tell anyone, including the emperor, it was when he took away the army that Li Shimin learned the news, although he knew that he was worried about his brother's safety and couldn't wait, but he still had a lot of criticism about his approach.

Li Shimin was upset, so he went to Wanyan's bedroom, whenever he was entangled in government affairs, Li Shimin smelled the fresh incense in Wanyan's palace and enjoyed Wanyan's massage, and felt a lot more relaxed. It's just that over the years, Li Shimin has felt that he has become more and more powerless in many things, and he deeply feels that he is old.

And when Li Shimin went on this day, their son, Jiang Wang Li Huan, was also there.

Li Huan is only four years old, but he is gifted and intelligent from ordinary people, not only inheriting his father's wisdom, but also inheriting his mother's appearance, looking like a tiger and a tiger, very cute. Coupled with his young age, Li Shimin is an old man, and Li Shimin likes this son very much, and even favors him a little.

When Li Shimin saw that Li Huan was there, he hurriedly called him over, hugged his son on his lap, and asked Li Huan about his recent life and homework, and Wanyan on the side was jealous and said: "The emperor has a hustle and bustle, so he doesn't care about his concubines." ”

Li Shimin only smiled and didn't speak, Li Huan flashed his long eyelashes, looked at his father with a pair of harmless eyes and said: "Father, the son came in and read some strange stories about the Western Regions, there is something unclear, and I want to ask my father." ”

Li Shimin said in surprise: "Oh? Can you understand the strange stories of the Western Regions at such a young age? This is a small despise, so let's tell my father about it. ”

Li Huan's sweet childish voice sounded, but what he said was no less than that of a scheming strategist full of logic: "Father, the book says that the same sex is detailed, the opposite sex repels each other, and all things are mutually restrictive, and the people of the Western Regions can use magnets to promote the movement of iron, but shouldn't magnets be restrained with iron, just like water and fire." ”

Li Shimin looked at Li Huan's innocent face, he couldn't have imagined that a four-year-old child would actually understand the principle of mutual restraint, and besides, magnets and iron, as long as they find the same pole, they can control those monsters wearing iron armor, but adults think about these simple things too complicated.

Li Shimin suddenly realized, caressed Li Huan's head and said: "Good boy, really smart and good boy, your problem has solved a big problem for my father, my father told you that there is no absolute, it depends on which direction you want." ”

Li Huan nodded inexplicably, Li Shimin also felt that what he said might be too advanced for a four-year-old child, so he touched his head and said, "Good boy, I will give you a big reward when my father is done with this time." ”

Li Huan jumped up happily, and Li Shimin also stood up as relieved, turned around and left Wanyan's dormitory, ready to discuss and provide a perfect battle plan for the front line, but he didn't know that all this had been written in the bag given by the Tieguan Daoist.

Li Shimin smiled at Wanyan very happily when he left, Wanyan also smiled back, and after watching Li Shimin's back disappear completely, Wanyan squatted down, touched Li Yan's head and said, "You are worthy of being a good son of the mother's concubine, your performance today is really good." ”

Li Huan still had an innocent expression on his face, but when he looked at his mother, he was a little frightened and wanted to hide back, so he asked resignedly: "Mother, why should I recite these words?" Since my mother praised me for doing a good job, can you reward me for not going to school tomorrow? I haven't learned what the master said today, and I will be beaten again tomorrow, and besides, practicing martial arts is too hard, I can't eat enough every day, so I don't want to practice martial arts. ”

In the end, Li Huan looked very aggrieved, and was even about to cry, but the smile on Wanyan's face was gone, and she straightened her face and educated very seriously: "Huo'er, listen, you must not let others know about what Mr. Li taught you to say these words, and you must learn literature and martial arts with Mr. Li, so that you can become the best prince and get ahead, and you will have to count on you in the future life of the concubine, you know?" ”

Li Yan nodded obediently, and at this time, Li Junzhi came in and asked, "Your Royal Highness Princess, have you done everything?" ”

Wanyan nodded, then pushed Li Yan to Li Junzhi, leaned over and instructed: "Huan'er, learn from Mr. Li and listen to him, do you know?" ”

Li Huan nodded obediently, and was taken away by Li Junzhi.

Zhao Nan rushed back to the battlefield early on the penultimate day of the agreed one-month period, it was already more desolate than when he left, there were fewer and fewer brothers in the Tang camp, but there were more and more corpses piled up, the temperature gradually rose, and there was a rancid smell everywhere.

Zhao Nan handed the bag to Liubin and Liuning, in fact, he had already opened it on the way, but in his eyes, this was a bunch of ghost talismans, he couldn't understand what it was at all, Liuning and Liubin also frowned and studied for a long time before they came to the final conclusion, this is a formation map.

Liubin couldn't help complaining about his master: "My master is really, is it true that he really helps us, give us such a difficult formation diagram, and don't come to personally guide it." ”

"As a teacher, don't you also want to see your Huigen, in vain, I have been teaching you for so many years, but you are talking about your master behind your back." As soon as Liubin's words fell, the voice of the Tieguan Daoist rang out, and the four of them immediately turned around and found the Tieguan Daoist standing behind them.

Liubin and Liuning shouted respectfully Master, but Zhao Nan was shocked and pointed to the Tieguan Taoist and said, "You, you, you, did you follow me all the way from Changbai Mountain to here...... Why are you here? ”

Tieguan Taoist smiled mysteriously: "I have been in and out of the red dust, and I have already come and gone freely. ”

When Liu Bin saw the master like this, he was very speechless, his own master began to pretend to be profound in front of outsiders again, but Zhao Nan, a usually pretentious person, was still looking at Tieguan Daoist with admiration on his face, Liu Bin hurriedly pulled the master over and asked him how to arrange this array.

Tieguan Daoist shook his head and said: "Fortunately, I came with me, otherwise you, an apprentice without Huigen, would not have made any achievements when he saw this picture, and he was still my closed disciple, which is really a shame for me." ”

Liubin didn't talk back, just waited for the Tieguan Taoist to give advice, but after the explanation of the Tieguan Taoist, they realized that they were thinking about simple things too complicated. Just by using the principle of attraction and repulsion between magnets and magnets, a magnetic field is created to gather all the people wearing iron armor together, and their attacks are naturally ineffective, and they can be easily captured.

But in this way, there are also many problems. First, in this wilderness and wilderness, where can you get such a large magnet, even if you have a magnet, it will take many days to process, once you miss, then these efforts will be in vain. Second, how to gather these armor-wearing people together, how to distribute the troops, even if the thieves capture the king first, but it is still a very difficult thing to encircle and suppress them. Third, if ** is lucky and really succeeds in encircling and suppressing everyone, but what should I do after that, these people are invulnerable and immortal, even if they are caught, there is no way to really subdue them.

Liu Ning threw out these possible problems, and everyone had no clue, but the Tieguan Taoist smiled: "You have your own plan for the teacher." ”