To be honest, although Yan Yan doesn't recognize Yan Yu as a person, she still admires Yan Yu's desperate courage, probably she really loves Lu Ming.

Therefore, Yan Yan still cared in the end, "Isn't this nonsense?" Who can guarantee that you will encounter something along the way, and you didn't send someone to chase her back? ”

"Mother sent someone to chase her, but the second sister refused to come back, so her mother had to ask them to escort the second sister to Jinyang, saying that it was okay, and the second sister couldn't die early." Yan Zhang bowed his head and replied.

Only then did Yan Yan think of asking about the progress of this headless public case, how the people of the Imperial City Division defined it.

"The Lu family can't produce empirical evidence, and they can't decide the case based on just one side." Yan Bin hurriedly said.

"What is the one-sided word, the two sides insist on their own words. Eldest sister, my mother said that she knew that she was wrong, and said that she couldn't live with you, and said that she had known that the Lu family was such a family, and she would not agree to marry the two of you if she was killed, but unfortunately, she said that there is no regret medicine in this world. Yan Zhang looked up at Yan Yan and said.

Yan Yan couldn't answer this question, she couldn't forgive the mother and daughter, whether it was Chong Yuan or herself.

However, she figured out a little, most likely the queen mother or the emperor played a role in it, otherwise, how could the bureau under the Zhu family have no evidence?

It is estimated that Zhu also knew that the Queen Mother and the Emperor were in harmony, so she dared to boldly propose to divorce Yan Yu, presumably she was also sure that the Queen Mother could no longer interfere, because she had the testimony and evidence that Yan Yu harmed her.

It's just that the Zhu family couldn't wait to kick Yan Yu away, and Yan Yan was a little puzzled.

After all, no matter how poor Yan Yu is, she is also the eldest daughter of the real Hou Mansion, and her talent and appearance are superior, so what is there to dislike about the Zhu family?

Even if Yan Yu is divorced, looking at the entire capital, it is unlikely that Lu Ming will marry a better wife than Yan Yu, right?

Yan Yan asked her confusion, but unfortunately Yan Zhang and Yan Bin were too young to answer her.

After sending the two brothers away, Yan Yan found Lu You's nurse, who has lived in the Lu family for many years, although she has been struggling at the bottom, she must know more about the affairs of the Lu family than Yan Yan.

It's a pity that the nurse only knows that Zhu is jealous, and few of the concubines around her husband can give birth to children normally, basically pour a bowl of medicine down to kill the other party's fertility, if there is a disobedient person who secretly gets pregnant, the girl is better, and may stay, and the boy will basically have two lives.

As for the rest, the nurse is not clear.

However, before going out, the nurse thought of an old thing, saying that Mrs. Lu was not less awkward with the Zhu family because of this incident, and she did not stuff people into her son's room, so the relationship between the mother-in-law and daughter-in-law was not as harmonious as it seemed on the surface.

These words reminded Yan Yan, and she also remembered an old thing, it seems that Mrs. Lu once mentioned it to her, saying that she didn't know how to run a business when she was young, so after the Zhu family entered the door, she quickly handed over the housekeeping power to the Zhu family, and became the shopkeeper herself.

And the Zhu family also lived up to high expectations, not only keeping the Lu family in good order, but also revitalizing the business of many shops, making the Lu family's family really rich.

Is that really the case?

Would Mrs. Lu really be willing to hand over her housekeeping rights, and then watch this daughter-in-law dictate in the Lu family and arbitrarily harm these concubines?

But then again, Lu Duan's generation only has one brother from Lu Zhu, and there are only two sisters from the concubine, which is not as good as the Zhu family, and there are still four concubines under the name of the Zhu family.

Therefore, Yan Yan concluded that this old lady Lu was by no means a good person, otherwise, she would not have allowed Lu You to fend for herself, right? You must know that Lu You is her only two own grandchildren, although he is a concubine.

Could it be that Mrs. Lu did this? Their previous guesses were misled and biased?

Not to mention anything else, the Lu family has fallen apart so much that it is absolutely inseparable from the Zhu family, and the old lady also hides hatred in her heart.

But there is no empirical evidence for this kind of thing, and Yan Yan doesn't dare to say anything, what she is more curious about is that if Yan Yu sees Lu Ming, what choice Lu Ming will make, and why the Zhu family is so eager to kick Yan Yu out.

Three days later, Yan Yan brought a new nozzle toy with a fixed base made by the masters into the palace to see Li Cong.

Yan Yan demonstrated in front of Li Cong how the nozzle hits the target, her nozzle sprays sand grains, which can hit the target about one zhang, the nozzle is at a 45° angle to the ground, and the front sight is set one-third of the way from the outlet of the nozzle.

Of course, Yan Yan also knew that there was a difference between the structure of the cannon and her spray canister, and she couldn't say how to position it, but the principle was roughly the same.

"It's as simple as that?" Li Cong learned that Yan Yan had learned the truth from shooting with a bow and arrow, and he didn't believe it a little.

You must know which of these masters can't draw a bow and shoot arrows, and who doesn't know how to determine the direction by the three points of the eye, the arrow and the target, and they also rely on the eye, the muzzle and the target when using the artillery, but there will be a big deviation every time.

"Back to the emperor, there is another angle problem with this." Yan Yan said.

The range of the artillery is long, the shell is fired in the form of a parabola, and the bow and arrow are straight lines, therefore, the angle of the artillery is different, and the parabolic pattern must be different, although Yan Yan doesn't quite understand the principle, but she has the impression that the artillery seen on TV in the previous life basically relies on the angle to adjust the range, so Yan Yan simply explained to Li Cong.

In order to increase the persuasiveness, Yan Yan also moved out two books, which have an introduction to the trebuchet, and the stones thrown by the trebuchet are also aimed according to the theory of parabola, but there is no detailed theoretical introduction in the book, only actual operation experience, and the distance of the trebuchet throwing the target is much closer than that of the artillery, so there will not be much deviation in visual inspection.

Li Cong didn't understand it, so he sent people to find a few masters from the Ministry of Works, wanting them to come and hear whether Yan Yan's conclusions were feasible or not.

While waiting, Yan Yan asked about the headless case of the Yan and Lu families, and she wanted to know what the people of the Imperial City Division had found.

"I thought you didn't care about it, and it took so long to ask me." Li Cong smiled.

"How can it be, aren't you busy with business? Naturally, it is important to get down to business. Yan Yan said with a smile.

Li Cong was not in a hurry to answer, but sold it first, asked Yan Yan what she thought of Yan Yu and the Zhu family, and also asked her how much she knew about Lu Ming, and asked her what the truth should be in her mind.