At the end of the court meeting, the ministers of civil and military affairs retreated from the court, and Zhang Yi also left after retiring from the court like other ministers.

Xue Li stayed in the palace for one night, but he could not live in the palace all the time, and now he was not qualified, and even if he was qualified, he could not live in the palace at will.

Therefore, naturally, Xue Li followed Zhang Yi away.

Xue Li is very grateful to his own Bole, although he doesn't know how he knows himself, but now he was recommended by him after all.

"Come back with me, it's more convenient for Your Majesty to summon you when he wants to."

Zhang Yi knew that Xue Li was suddenly recruited into Beijing, and there must be no place to live, and he was the person he recommended, so it was reasonable to follow him back.

But now, Zhang Yi obviously didn't want to take Xue Li back to Zhangjiazhuang so soon.

During this time, Cheng Chumo, Tang Peng and others have helped him a lot, just let them follow him to lobby many nobles in Chang'an City, he owes them favors.

Of course, all this is for Xue Li, and it can also be seen that Xue Li also owes them a favor.

Therefore, after retiring from the dynasty, Zhang Yi took Xue Li to Chengguo's mansion together.

Cheng Yanjin was very interested in Xue Li recommended by Zhang Yi, so after Xue Li arrived at the Guogong Mansion, he naturally had to be called over by Cheng Yanjin for questioning.

In fact, Cheng Yanjin was still worried about the safety of the soldiers on the front line, and he could also see through this court meeting that if there were no major variables, then Xue Li was likely to be the vanguard candidate for this Eastern Crusade.

Therefore, he must talk to Xue Li and teach him some experience and knowledge, so that he can go more smoothly at that time, and the Tang Army's war can go more smoothly, and the soldiers can sacrifice less and shed less blood.

Xue Li was pulled over by Cheng Yanjin, Zhang Yi was no better, and Cheng Chumo and a few other foodies also unceremoniously dragged Zhang Yi to the kitchen.

It is rare that Zhang Yi has been staying in Chang'an during this time, and they don't want to miss this opportunity, otherwise they may not be able to eat Zhang Yi's meal once in the future.

When they are hungry, they can go to Zhangjiazhuang to rub rice, but after all, this kind of thing can only be occasional, and they can go there every day, so they plan to pull Zhang Yi to cook more for them now.

By the way, I also let my chef observe it a few more times, and strive to make better dishes in the future.

When the meal is ready, Cheng Yanjin and they naturally want to come over to eat together, and Cheng Yanjin still likes Zhang Yi's craftsmanship very much.

Cheng Biting Jin, plus Cheng Chumo, Zhang Yi, Xue Li, Tang Peng and others directly gathered around a table and ate big.

And this meal can be regarded as the time for Zhang Yi to introduce Xue Li to the table, and if Xue Li wants to mix in the army in the future, then he must have some friends and supporters of his own.

And now, isn't that a great opportunity?

The prestige of the Cheng family in the army, coupled with Tang Peng and others, was enough to help Xue Li open up the situation in the army.

It is equivalent to saying that Zhang Yi has paved the way for him, so the next road will be much easier for him to walk.

Xue Li is such a smart person, although he is only in his twenties, he understands Zhang Yi's intentions.

Full of wine and food, Zhang Yi and Xue Li still rushed back to Zhangjiazhuang before dark.

There is a curfew in Chang'an City, and Zhang Yi doesn't want to stay in Chang'an City, although there is also a house to live in Chang'an City, but his home is in Jingyang, Li Hui and other family members are in Jingyang, and he has to go back to Jingyang to go home.

The housekeeper Lao Zhong drove the car, and the two of them talked about the current situation and some other issues in the carriage and then rushed to Zhangjiazhuang.

In the next few days, there was nothing going on in Chang'an City, and Li Er did not recruit the two of them into the palace.

But Zhang Yi knew that this was just the calm before the storm.

Before starting a war, it is necessary to prepare, and now, Li Er should be in the palace preparing for the next crusade.

The deployment of troops and generals, and the mobilization of weapons, grain and grass, etc., all need Li Er to plan one by one, and he not only needs to choose the vanguard, but also other generals or something, and Li Er and some military generals and ministers need to bother.

So Zhang Yi took advantage of this time to let Xue Lifang relax.

The most important thing is that Zhang Yi must also take advantage of this time to allow Xue Li to freely use gunpowder shells in the war.

Although Li Er is the lord of the Tang Dynasty, he is not a general after all, and a general is needed to fight, so Xue Li is a good choice.

In the next twenty years, Xue Li will be Datang's right-hand man, so Zhang Yi plans to make Datang transition from the overlord of cold weapons to the general use of cold and hot weapons through Xue Li's promotion.

And Xue Li was also very interested in the effect of gunpowder bullets after hearing about them before, but the control in the army was extremely strict, and they had no way to get in touch with gunpowder bullets, and he could only hear about them and inquire about them, and there was no way to really understand gunpowder bullets.

And now, the inventor of gunpowder bombs was standing in front of him, how could Xue Li let go of this opportunity.

So, Zhang Yi planned to teach Xue Li some knowledge about hot weapons, and it was very easy.

One is willing to teach, the other is willing to learn, and with wishful thinking, things are going very smoothly.

And Xue Li is a very smart person, Zhang Yi only needs to explain it to him once, he can know the principle, and usually he can draw inferences.

Professor such a smart guy, Zhang Yi even felt very enjoyable, now he finally knows why some people just like to teach, if you can meet a smart student, then that feeling, is really super cool.

Xue Li's learning ability is so strong, Zhang Yi also wants to take advantage of this time before the war broke out, and teach him more knowledge about hot weapons, after all, let Xue Li promote these things in the future, then he can promote them much faster.

The most important thing is that he is troublesome, and he taught Xue Li, so he doesn't have to be so troublesome.

When the army of the Tang Dynasty has hot weapons, at that time, who else will be able to compete with it.

No!

Under Zhang Yi's teaching, Xue Li has mastered more and more knowledge of thermal weapons, especially for gunpowder bullets, he has almost been able to apply them in many aspects, and even Zhang Yi did not expect some places.

Time flies like a white horse, and the two of them gradually evolved from Professor Zhang Yi at the beginning to a discussion between the two of them in the end.

If they were given a little more time, the devil knows what new products they would be able to discuss.

However, at this time, Li Er's side was almost ready, and the movement of grain, grass, weapons and soldiers had already begun.

The whole empire is starting to move, and the war machine is gradually activated!