Chang'an in February has a trace of warmth, after a few spring rains, the grass on the side of the road has spit out tender shoots, and countless young ladies in the boudoir have stepped out of the house with maids to experience the atmosphere of early spring.

Li Chengqian's injured leg has been much better, except for a little pain when walking, it is basically the same as ordinary people at other times. It made him happy, at least not worrying about turning into a cripple.

When the leg is healed, people's hearts begin to be frizzy, and Li Er's grounding order has been counted countless times, but there are still more than forty days before the ban can be lifted.

"Brother! What are you thinking? Li Chengqian, who was depressed, was startled by Changle's voice, turned his head to look, and found that Changle and Xiao Wu were holding hands and standing behind him, and the eyes of the two big and small loli flashed with the light of successful prank.

"Why are you here? Didn't you say that you would go on a trip today? With a smile, he patted Changle and Xiao Wu on their heads, and asked with a light smile.

"I miss my brother, we see that you are so pitiful, so we will come back to accompany you." Changle smiled with two small dimples on his face, which looked very cute.

"Brother Prince, do you know that those people outside are about to go crazy looking for you." Xiao Wu ran to the other side of Li Chengqian, grabbed the hand that wanted to reach above his head to make a fool, and raised his little face with baby fat, with a hint of pride in his tone.

Motioning to the chamberlain to bring two chairs, Li Chengqian asked with some puzzlement, "What are you looking for me for?" ”

"It's not because your elementary school math is gone after the fourth grade, and the reference lesson plan is gone, the threshold of Uncle Hejian's 'Xinhua Bookstore' is about to be broken, and many people have to ask every day, but the new books have arrived." Changle gently bowed his head like a waiter, and then sat down beside him, with a small mouth like a machine gun.

At the same time, Xiao Wu next to him was not to be outdone: "Yes, yes, yes, and now 'Primary School Mathematics' has been fried to hundreds of dollars per book, but there are still people who are constantly increasing the price, I really don't know why you only printed 10,000 copies at the beginning." ”

Li Chengqian was very tempted to say that 10,000 copies was actually quite a lot, but this was completely a loss of money to make money, and a book worth 20 wen and 70 or 80 yuan could not be found in any bookstore in Chang'an City, because this was the cost price of movable type printing, and the money left after removing paper and ink was not enough to pay the workers.

"Brother, do you know, many private schools in Chang'an are now using your books to teach Mengxue, and even our Hongwen Museum is using your books as teaching materials." Changle blinked his eyes and said very seriously.

"You didn't tell me about it, did you?" Li Chengqian had a bad feeling, as if something bad was about to befall him.

"Do you still need us to explain?" Author: Li Gaoming's five characters are printed larger than the title of the book. Changle pursed his lips and glanced at Li Chengqian with contempt with a wrinkled little nose: "Brother, you said, do you know Li Gaoming among the noble children who are studying in the palace?" ”

Yes? No? Li Chengqian pondered for a long time, and finally shook his head with difficulty.

"So, brother, you can't be so idle anymore, if the fifth volume doesn't come out before June, many students will have no books to read, and that will have a great impact on your reputation." Changle's expression was very solemn, and it seemed that Li Chengqian had a feeling of facing Wei Heizi.

"You two aren't here to admonish, are you?" Li Chengqian turned his head left and right, looked at the two lolis, and asked with a sad face.

"Brother Prince, as you said, you must have a beginning and an end to do things, and you can't give up halfway, why don't you stick to it?" Wu Mei's immature little face is full of seriousness, and she looks like a messenger of justice, and Li Chengqian, needless to say, is naturally the embodiment of evil.

"Brother knows that the two of you mean well, but let my brother think about it?" Faced with the condemnation of the two big and small loli, Li Chengqian could only shake his head weakly, and used such a method to perfunctory.

"Brother, naturally you don't need Changle and Sister Xinyang to talk too much about how to do things, but my brother should think about this matter, okay?" Li Lizhi changed the image of the little devil in the past, and her well-behaved appearance made Li Chengqian almost blind.

The two Loli came suddenly and left in a hurry, Li Chengqian pondered for a long time, except for guessing that the two little girls were here to report the news, there was no clue about anything else.

After about half a month, annoying catkins once again floated in the sky, and Li Chengqian was once again summoned by the old man to the Lizheng Palace.

"You wrote this book?" As soon as he walked into the old man's study and saw Kong Yingda's old goods, Li Er's voice broke into Li Chengqian's ears.

"Uh~, back to my father, it was indeed written by his son." I despise the old man in my heart, and novels are described by 'writing', and people with this kind of textbook culture generally use 'writing' to describe them.

How could Li Er not understand the meaning of his words, the corners of his mouth twitched after hearing the words, and he felt a little helpless about his shameless behavior.

"His Royal Highness the Prince, is there a follow-up to this book?" Kong Yingda saw that Hongwenguan was about to talk about arithmetic, so he was so anxious that he didn't have the heart to play any word games with this father and son.

"Nope." Li Chengqian shook his head decisively, he is not stupid, he is writing down elementary algebra and elementary geometry.

X, Y can play in Datang can understand that it can be said that except for himself, there is almost none, and it is still impossible to talk about Hongwenguan when he gets it out, so it is better to completely cut off their thoughts.

Li Chengqian's answer was crisp and neat, but Kong Yingda was a little dumbfounded, and he was completely caught off guard by this kind of thing that did not follow the routine.

Originally, in his opinion, Li Chengqian wrote under the eighth volume, and there should be a following, and the reason why he didn't write down was probably because he had another plan.

So the old guy gave up his plan to find Li Chengqian, went directly to him, and found Li Er, intending to borrow Lao Li's power to suppress him.

It's a pity that Old Man Kong has exhausted his genius and ignored the most critical point, that is, knowledge is not the same as money, it cannot be seen or touched, as long as Li Chengqian himself does not say it, or does not show that he knows, others will never know how many things he will have.

"Prince, don't be rude." Old man Kong's embarrassed expression made Lao Li feel a little funny, but in order to take care of the old guy's face, he still reprimanded Li Chengqian in a fake way.

"Whoa." Li Chengqian nodded understandingly, turned around and bowed to Old Man Kong, and said in his mouth: "The student is not in a word, please forgive Master Kong!" ”

Excuse me? The old man forgive me, the old man Kong kept slandering in his stomach, in this old man's heart, he didn't believe that Li Chengqian only knew so much about things, he had experience in compiling textbooks, and he knew very well that if he wanted to write a textbook, the editor's knowledge would definitely be much more than what was written in the book!