The Classic Pavilion is not located on the island of Xianggong, but on Tingfeng Island, which is six hundred miles to the west.

Holding Elder Bai's classic card, Xu Yi stepped into the Wind Listening Island smoothly and found the Classic Pavilion without any twists and turns.

He was not in a hurry to enter the pavilion, but settled on a bluestone under a green pine, and his divine thoughts were slowly released.

Sure enough, when I arrived outside the classic pavilion, I encountered a layer of obstacles.

Xu Yi urged the meaning of mourning, wrapped the divine thoughts, and with his best efforts, after a short time, the layer of obstacles was penetrated, and the divine thoughts spread like water, instantly enveloping the entire Classic Pavilion.

After about half a pillar of incense, Xu Yi collected his thoughts and marched towards the classic pavilion.

Crossing the main hall, bypassing the dome forged by more than ten people holding more than ten zhang high, there were miscellaneous servants who came to pick him up, and was waved back by Xu Yi, and he strode towards the middle-aged man with a conspicuous mole on his white face on the west side.

"Brother Lu is polite, an old acquaintance introduced him, and he will do something. ”

Xu Yi sent it in, and a medium-grade spirit stone quietly slipped into the middle-aged cuffs of the mole.

The middle-aged man's eyes flashed, and he walked towards the ear room on the left side, and Xu Yi followed not far away.

Only then did he follow into the ear room, and the middle-aged man closed the door and said, "Who introduced you, how dare you act like this, I can't help you, you take back this spirit stone." As he spoke, he spread the medium-grade spirit stone in his palm and handed it to Xu Yi, but his eyes did not look at Xu Yi at all, but stared at the medium-grade spirit stone.

Xu Yi said, "Why should Brother Lu be polite, if it weren't for the introduction of a few people, Brother Lu would not have been found." Acquaintances are familiar with the road, and Brother Lu is also invited to make it convenient. As he spoke, another medium-grade spirit stone was sent into the hands of the middle-aged man.

After Xu Yi found out that after entering the immortal gate, it seemed that he had suddenly entered a period of inflation, and ordinary spirit stones were not easy to use at all, even if he sent such a small person, only medium-grade spirit stones could make a move.

Of course, this kind of inflation, Xu Yi is completely understandable.

The people of Xianmen do not know how to use spirit cards, so they have spirit stones, and they are often stored.

Of course, a large number of spirit stones are not easy to store, but it is just right to change them to medium-grade spirit stones.

And because of the existence of the spiritual spring, the medium-grade spirit stone is easier to exert its value.

Before entering the Donghua Immortal Gate, Xu Yi did not have this understanding, and now, there are a large number of ordinary spirit stones stored in his Sumeru ring.

Fortunately, he robbed Cao and Fan, and in their Sumeru ring, he collected more than 200 medium-grade spirit stones, which were enough for him to spend temporarily.

The two spirit stones completely destroyed the middle-aged psychological defense line of the mole, and he said to Xu Yi, "No matter who you listen to, this matter can not be repeated, Lu hopes that you will not be ......lucky."

Xu Yi nodded and said, "Brother Lu, don't worry, you can save something." ”

It turned out that Xu Yi did not enter this classic pavilion for the first time, but chose to cover the whole hall with divine thoughts, just to find out the way.

If he was a newcomer, Xu Yi would never dare to be so bold, after all, once there was a True Yuan Fifth Transformation Cultivator, he would definitely be noticed if he released his divine thoughts like this.

Now, Xu Yi has figured out the situation and has self-confidence.

First, the five strong people of the True Yuan are all early Yuan, and they are working hard to impact the position of Yang Zun, and there are few people who go out.

In both cases, he released his divine thoughts, and even if he was detected, he could have escaped all of them.

Today, he is extremely confident in his speed. The Phantom Hokage trick is not in vain.

In the end, Xu Yi probed out and successfully captured the key information.

It just so happened that this middle-aged man was trading with people. The content of the transaction is the important information here.

Like all the attics in the world that hide classics, the classics of the classic pavilion, in addition to the classic card to obtain the number of borrowing, the text in the classics is also the same as the word and other spirit stones.

Once the borrower is not clear enough, the borrowing will inevitably fall into the sea of books to find the needle, and at that time, the amount of spirit stones consumed must be heavenly.

In this way, insiders like middle-aged people have value.

And the existence of these people will definitely damage the income of the Classic Pavilion, so this kind of person acts cautiously, and such an unsightly business is not familiar with it.

Xu Yi is a fresh face, if he comes rashly, he will give more spirit stones, and the middle-aged man will not dare to take risks.

However, Xu Yi was shrouded in divine thoughts, and obtained enough information to reassure the middle-aged man, and Xu Yi made a move, and he was extremely generous, so that he had no room to refuse.

The two chatted for a long time, and Xu Yi obtained useful information.

Three borrowing opportunities, he used it up once, spent 320 million spirit stones, and borrowed three classics: "The Final Solution of Qi and Blood", "Spirit and Blood Technique", and "The Appearance of the World".

After signing the oath not to leak the text of the classics, Xu Yi used three audio-visual beads to photocopy all the three classics, and then left the classic building.

Starting with the three books, Xu Yi didn't even have time to study them, so he plunged headlong into the "Dongcao Sutra", he didn't dare to take Elder Bai's words as a joke.

His wisdom is superb, and he has a good foundation in mathematics, although the "Dongcao Sutra" is complicated, but it is only a part of the foundation of the entire mathematical building, as long as you are willing to work hard, it is not difficult to understand.

On the evening of the sixth day, he figured out the entire "Dongcao Sutra", and began to slowly reminisce and decompose, thinking about how to tell it, and this process undoubtedly deepened his understanding of the "Dongcao Sutra".

On the seventh day, Elder Bai summoned on time, and Xu Yi arrived and began to explain the calculations.

Elder Bai was overjoyed, and after the first day and night, he arranged the "Ten Questions of Heavenly Machines" to ask Xu Yi to go back to study, and gave another seven days.

For three months in a row, Xu Yi was forced by Elder Bai to bury his head in the poor scriptures, and studied dozens of sutras in a row.

However, Xu Yi learned well, and the later he went, the more difficult he became, and the longer he asked Elder Bai for it.

However, Elder Bai is limited to talent, and the later he goes, the more difficult it is to review Xu Yi's explanation, and naturally he also thinks that Xu Yi is like him, but he is not blindly forced.

On this day, Xu Yi left the hall of the Gongfa Building and got a full month of time to crack the "Qiankun Easy Count".

In fact, in order to save time, in the past three months, Xu Yi had studied the mathematical classics far more than those designated by Elder Bai.

It can even be said that he has stepped out of the stage where he needs Elder Bai to urge him to study, and has turned passive into active.

In his mind, if he didn't finish the calculations in the Sumeru precepts, Elder Bai would definitely not take a break, so as not to wait for nothing, so he simply studied independently.

Coincidentally, he had studied this "Easy to Count" book and completely figured it out.

The hard-won January time, Xu Yi cherished it very much, and secretly communicated with Turing, and after confirming that the big man had not moved, Xu Yi decided to go out of Xianmen.