Ma Feifei is really not a tiger, since the price of the system is so high, it must indicate that the private room is worth that price.

And according to the series of products of Wudao in the private room, Ma Feifei feels that the key to the increase in the cost of the private room is on this.

It's hard to imagine that a person with dull qualifications can run into a private room and read a book.

After receiving the spirit crystals of the two, Ma Feifei took the two to the front bookshelf.

More than half of the books on the shelves are missing, but there are also a lot left, hundreds more.

Looking at so many blue-quality books on the shelves, Gongsun Qiong couldn't help but sigh: "I still remember the first time I came to the bookstore to read books, there were very few books in the bookstore, as if there were only three books at that time, right? ”

Zhao Xiaodao also nodded and said, "Yes, I still remember that there is a book called 'Thirty Poems', which was created by the shopkeeper himself, and he still wants to fool me after writing it." ”

Speaking of the past, although it was only a few months, it was like a lifetime, and even Ma Feifei couldn't help but sigh: "Yes, it's been so long in the blink of an eye." ”

In the blink of an eye, Ma Feifei has been living here for half a year.

"But then again, shopkeeper, where did you get these books, and why do they have such magical effects?" Zhao Xiaodao asked curiously.

"Knives. Gongsun Qiong shouted Zhao Xiaodao.

Zhao Xiaodao seemed to react, stuck out his tongue embarrassedly, and said, "I'm sorry, I shouldn't have asked." ”

Ma Feifei shook his head with a smile and said, "It's okay." ”

However, he didn't explain anything, everyone has an unforgettable memory in their hearts, and there are also many secrets that they don't want to share.

"What kind of books are you looking for? Sweeping away those cranky thoughts, Ma Feifei asked.

"I want to increase my cultivation, but the realm is too weak to protect the president. Zhao Xiaodao said.

Gongsun Qiong said with a smile: "If only there were books similar to "Half an Acre of Flower Fields", "Huanzhu Gege" would also do. ”

She can't practice, and those books that can increase her cultivation, exercises, and martial arts don't mean anything to her.

Ma Feifei nodded and began to search for the bookshelf.

The first book, Ma Feifei got a masterpiece.

Gu Long: "The Sword of the Third Young Master".

At the same time, Ma Feifei also had the basic introduction of the book in his mind.

The Sword of the Third Young Master

Quality: Blue

Store purchase price: 500,000

Benefits: Martial arts

This is the difference before and after the system upgrade, now as long as Ma Feifei gets any book, there will be relevant information about the book, and there is no need to guess what is in each book and what kind of benefits it can bring to everyone.

However, this was not intended to increase cultivation, so Ma Feifei put it back again and continued to look for it.

The Legend of the White-Haired Witch

Quality: Blue

Store purchase price: 500,000

Benefits: Martial arts

Neither is this one.

Seven Swords Under the Heavenly Mountains

Quality: Blue

Store purchase price: 500,000

Benefits: Martial arts

Neither is it.

"The Legend of the Ping Demon" (Book of Heaven)

Quality: Blue

Mall purchase price: 500,000

Benefits: Repairs

Yes, that's it.

Ma Feifei handed this copy of "The Legend of the Ping Demon" to Zhao Xiaodao and said, "This one, if you can comprehend, you should be able to increase your cultivation." ”

Zhao Xiaodao took "The Legend of the Ping Demon" with a satisfied face.

Then Ma Feifei began to help Gongsun Qiong choose books again, but compared to Zhao Xiaodao, Gongsun Qiong reads books to see the artistic conception, not to get profits, so it is much simpler;

But who makes the family a girl, what they like is some love and love, and they are not interested in fighting and killing.

"Huh?" Suddenly, when Ma Feifei was looking for books on the shelf, he found a strange book, and Ma Feifei couldn't help but take it down from the shelf.

Nine Chapters of Arithmetic

Quality: Blue

Mall purchase price: 500,000

Reapable: Nine chapters of applied mathematics

"!" Ma Feifei looked at "Nine Chapters of Arithmetic", with a confused face, can this kind of book also be available?

"What's the matter, shopkeeper?" Gongsun Qiong looked at Ma Feifei suspiciously.

'Ahem' Ma Feifei coughed, looked at Gongsun Qiong, and asked, "Sister Gongsun is a businessman, right?"

Gongsun Qiong nodded and said, "Hmm." ”

"Then you have some research on arithmetic, right?" Ma Feifei asked again.

"Of course, the president's mental arithmetic is amazing, and no one in the Chamber of Commerce is her opponent. Zhao Xiaodao on the side said proudly, as if he had something to do with her.

"I think you can try reading this book. Ma Feifei handed the "Nine Chapters of Arithmetic" to Gongsun Qiong.

Gongsun Qiong took the book, looked at the title on it, and couldn't help but read it: "Nine chapters of arithmetic?"

Ma Feifei looked at the book in Gongsun Qiong's hand and said: "This contains a set of extremely advanced arithmetic methods, if you can understand it, it should be of some help to you in arithmetic." ”

Speaking of "Nine Chapters of Arithmetic", it is the first mathematical treatise in ancient China, and it is the most important one of the "Ten Books of Arithmetic", which was written around the first century AD. The book is very rich in content, systematically summarizing the mathematical achievements of the Warring States, Qin, and Han dynasties. At the same time, the "Nine Chapters of Arithmetic" also has its unique achievements in mathematics, not only the earliest mention of fractions, but also the first record of surplus and deficit problems, and the "Equations" chapter also expounded negative numbers and their addition and subtraction operations for the first time in the history of world mathematics. It was the world's most concise and effective applied mathematics at that time, and its emergence also marked the formation of a complete system of ancient Chinese mathematics.

"There are still such strange books?" Gongsun Qiong's face was a little surprised.

Ma Feifei touched his nose embarrassedly, it was the first time he found out that there were books with this kind of income in the bookstore, it seems that he still doesn't know enough about the bookstore!

"Then the slave will read this book. Gongsun Qiong was obviously still very interested in books on arithmetic, and pulled Zhao Xiaodao towards the private room, ready to read the "Nine Chapters of Arithmetic".

"Go back and browse all the books on the shelves to see if there are other books with different incomes. Looking at the two people who entered the private room with books, Ma Feifei returned to the cash register and thought silently.

"But before that, let's copy the reward book. Shaking his head, Ma Feifei picked up the pen and sighed.

There are more and more books in my head.,The last few remaining books haven't had time to copy.,Yesterday the system rewarded a yellow-quality "The Art of War", which is equivalent to the previous "Pokemon" copied in vain.,Everything is back to square one.。

However, when it comes to the "Art of War" that is rewarded, I have to mention the new side quest - transcendent sanctification.

Transcendent sanctification

Details: Buy an epic quality book from the System Store and use it to help a book friend enter the Spirit Saint realm.

Often: One year.

Reward: The Sage's Follower.