After hearing this, Zhang Fei thought about it carefully, and finally gritted his teeth and stomped his feet, saying, "It's good for you. No matter how small the mosquito is, it's still meat. You can't waste it like this. Anyway, there's nothing wrong with going back. This time we don't need any food or grass. Let's rob those horse thieves. I'll write a memorial to my lord and ask for this matter to my lord."

It is better to deal with some horse thieves than to stay there when they go back and get a lot of spoils, and the lord should agree. So Zhang Fei wrote a memorial to send it back to Jizhou City, while he led the army to hold the troops here and waited for Liu Bin's instructions.

After receiving Zhang Fei's memorial, Liu Bin couldn't help but smile. Zhang Fei was really not beyond his expectations, and he was reluctant to come back after running out. However, Liu Bin was not angry about it. He knew that Zhang Fei was not the kind of person with strong ambitions. He did not want to lose his control, but just wanted to fight. Liu Bin thought about what Zhang Fei always said in the memorial and agreed. Now Zang Ba and the others are also pretending to be a horse thief. After a long time, it is hard to guarantee that no one will see it. If Zhang Fei continues to stay there in the name of extermination of horse thief, it is a concealment. Moreover, with Zhang Fei and others, the spoils seized by Zang Ba and the others can be transported back more easily. They can cover up, so he approved it.

However, in his reply, he specifically reminded Zhang Fei that he would not do anything and that he could wipe out horse thieves, but he could not go deep into the grassland, and he also had to follow Zang Ba's people. He finally decided to tell Zang Ba that he could still understand why he could still be seen. Otherwise, with Zhang Fei's personality, the two gangs might have fought for no reason. That was the flood that washed away the Dragon King Temple, and the whole family did not know the family. In that way, the last benefit would be someone else. After writing the letter, Liu Bin specifically reminded the sender: "This letter can only be seen by General Zhang alone. No one else can be seen. In addition, Zhang Fei must keep it confidential for me, otherwise, he will be killed without mercy."

Although Liu Bin decided to tell Zhang Fei about this, this matter is of great importance after all, and it is not the time to be made public, so Liu Bin explained it like this.

The person who sent the letter couldn't help but feel cold. The lord had never given such a special order before. It seemed that this letter was of great importance. He must not be curious. He must complete the task well. So he quickly agreed and returned on the same road. After finding Zhang Fei, he quickly stepped back and handed the letter to Zhang Fei, and also told Liu Bin's explanation. After hearing this, Zhang Fei couldn't help but become serious. He looked at the fire paint on the envelope and knew that the secret had not been leaked yet. Then he took out an Analects from the side, compared it with the letter, and began to look.

Liu Bin's army has now begun to implement the cryptographic book system. Every time the file transaction is a corresponding password, you must have a corresponding password to know the content in your heart. The new one is full of numbers, and only according to the corresponding password book can you know it. This is also to prevent information leakage. In ancient times, Liu Bin saw too many scenes of those spies who sent letters and were caught by others, and he didn't want to encounter such a thing himself. Although this cryptographic system is not very perfect and the confidentiality is not really strong, it is enough to deal with this situation. And every time

The corresponding password books for an action are randomly selected, and only those inside Liu Bin know the Arabic numerals on the new ones are known. And now Liu Bin is also improving this system, and he has already found people to train carrier pigeons. He also went to the grassland to find talents such as eagles and large birds such as Haidongqing. He is preparing to establish an air communication system. The reason why a particularly large empire could not be established in ancient times was an inconvenient reason for information transmission. Liu Bin did not want to face this situation himself, so he was preparing to train this method of transmitting the fastest in ancient times.

In fact, the pigeons have started to be used in China. During the Spring and Autumn Period and the Warring States Period, there was a record of sending letters with pigeons. However, all this was not regular, but finding people who could train pigeons or retrain themselves was not a difficult task. As for the eagles or Haidongqing, let alone the alien races on the grassland have always used these birds as scouts. However, they are all small-scale uses, and they have rarely used magic, but it is not a problem for Liu Bin. His caravans often go out of the grassland and have long paid attention to this aspect. In addition, he is now going to marry Wuhengren and ask Wuhengren to ask Wuhengren to ask those who train Haidongqing, and I believe that Wuhengren dare not say no. But these are all later things, and it is too early to say these things now.

After reading the letter, Zhang Fei frowned, sighed, and then burned the letter. To be honest, he was a little dissatisfied with Liu Bin's case of pretending to be a horse thief to rob. He felt that being the world's No. 1 army would really damage his majesty and would be injustice to do so. However, he also knew that Liu Bin had a certain reason for doing this. He was used to obeying Liu Bin's orders, so it was hard to say anything else. The reason why he sighed was that he had become a supporting role this time, and he wiped out the horse thief here, and it turned out that he was killing the horse thief who wanted to protect his side. This fact made Zhang Fei laugh and cry. However, the last time Guan Yu slaughtered on the grassland, it did benefit Youzhou a lot. Liu Bin did this for the sake of the entire Youzhou, and Zhang Fei had to act according to the orders.

Zhang San next to him saw Zhang Fei sighing and thought that Liu Bin did not agree with the suggestions of his and others, so he asked carefully: "Boss, what do you think of the lord psychologically? Is the lord disagreeing with our suggestions?" Zhang Fei shook his head and said, "No, the lord has agreed."

Zhang San asked in surprise: "Then why are you sighing? {Does your lord have other orders?" Zhang Fei glared at him and said: "Is there any new order that you can ask? Remember not to ask what you shouldn't ask in the future. Military secrets, one more man's way, the possibility of leakage. This time our action is military secrets. Do you understand?" Zhang Fei thought of Liu Bin's special explanation, and Zhang San especially likes the matter in the hall, so he decided to hit Zhang San so that he would not be too curious in the future and harm his own life.

When Zhang San saw Zhang Fei suddenly become so strict, he couldn't help but stand attentively and said, "Yes. I will definitely remember it in the future."

To be honest, he was really a little scared. Zhang Fei said this. It must be because the lord had something to explain. He was too reckless. How could he inquire about the lord’s affairs? Seeing Zhang San’s appearance, Zhang Fei couldn’t help but sigh again. Zhang San grew up with him. Although he was named the master and servant, he was as close as a brother. He didn’t want to harm Zhang San, so he said, “The lord specifically told him that this matter must be kept strictly confidential. You should put away your curiosity. Otherwise, if the lord wants to give birth to you, I wouldn’t be able to plead for you.”
Chapter completed!