Qin Yuan sat back again, the reason why he still chose Old Man Xu, Qin Yuan also had his considerations, one was the time of the mist of time and space, this uncertain factor made Qin Yuan dare not bet on other possibilities, and second, this old man Xu was able to get so many good things because of his side business, well, it should be the main business, and if he changed to other monks, he might not be able to have so many things;

"One spiritual weapon, two pieces of news will always work. In the end, Old Man Xu raised the price a lot, and said with a bitter face.

Qin Yuan nodded with satisfaction, this is a win-win situation for both of them, Qin Yuan is a white wolf with empty gloves, this old man is similar, everything is also for nothing, don't feel distressed. And if Qin Yuan's thoughts were correct, this old man would also be a white wolf with empty gloves.

"Before trading, I want to ask two questions?" Qin Yuan said.

"You say. ”

"First, can I bring the real thing back? Qin Yuan asked the key.

"You've found out. Old man Xu shook his head with a wry smile, "You can't take it back." ”

"So, our boss doesn't talk about the second, he is the master of the white wolf with empty gloves. Qin Yuan smiled slightly.

"If you have a point, what about the second question?"

"How to trade?"

Old man Xu thought for a while and said, "This is a hammer deal, you can't reach me, I can't reach you, the two don't know each other enough, let alone talk about any credibility issues." In this way, there is only one way to do this business. ”

"Oh?!, what's it?"

"The avenue witnesses and signs the oath document. Old man Xu said.

Qin Yuan was surprised and said, "Dao oath documents, do you have such a trivial heaven-level prop?"

"Hehe, if I didn't have this thing, would I have said it?"

The Taoist oath document is a more powerful constraint than the monk taking the Taoist oath under the Heavenly Dao. Since the collapse of the Flood Desolate Continent and the formation of the Three Thousand Worlds, basically as long as the Heavenly Dao Oath discovered by the monks, as long as it reaches the Merge Dao Period, it can already be used in various ways to get rid of it. At this time, if the monk wants to make a vow again, he can only be bound by the Great Dao. But Qin Yuan didn't have the ability to cultivate to make an oath under the Great Dao. Therefore, if Old Man Xu made an oath under the Great Dao, Qin Yuan would not have the ability to sense it, and it could be said that the two of them were not at the same level at all.

At this time, the Taoist oath document came into being, and this document does not exist much, because it is purely intended to put the weak monk on an equal footing with the monk above the Taoist level in terms of the Taoist oath. In other words, with the Dao Oath Document, Qin Yuan would be able to sense whether Old Man Xu's Dao oath was valid when he made an oath to the Great Dao. Therefore, this kind of production process is complicated, and the use of precious materials is a chicken rib, who would waste time on this kind of one-time props aimed at leveling the gap between the two sides. And what monk would have nothing to do, and put down his body to make a deal with a low-ranking monk.

Qin Yuan didn't accept it this time, but he bet that this oath document was also obtained by improper means.

It was the first time Qin Yuan had seen the Dao Oath Document, a scroll made of plush animal skin, and the powerful aura coming from the fur even made Qin Yuan feel a little difficult to breathe. And at the first glance that Qin Yuan saw it, he naturally knew the use of this thing in his mind, which was also to take care that the weak party who signed this document was not deceived by the other party, and then whether it was the content of the written oath and so on, it would be reflected in the sea of knowledge of both parties for supervision.

The signing of the oath went smoothly, and both of them had the will to facilitate the transaction.

Trading begins.

Qin Yuan recorded all kinds of historical events collected from various sources, whether detailed or not, into a blank jade slip, and then put it in front of the two of them.

"Elder Xu, please take out a blank jade slip. Qin Yuan said.

Old man Xu nodded, and he was very greedy for the jade slip placed in front of him, but because of the Great Dao Oath, he could only stare dryly.

I saw that the old man Xu put a blank jade slip next to his jade slip. At this time, the two jade slips were on Qin Yuan's right hand, and Old Man Xu's many exercises were on Qin Yuan's left hand.

Qin Yuan continued: "Elder Xu, I'll pick your things for a while, and every time I pick up a piece, the Dao Oath Document will randomly enter the equivalent information of my jade slip into your blank jade slip, okay." ”

Old man Xu nodded solemnly, if he wanted to know the future information, it was impossible for Qin Yuan to put all the information in front of Old Man Xu for him to choose, which was equivalent to putting all the information under his nose, and even the effort of picking it would be saved; Therefore, judging by the oath document, the equivalent information was randomly selected from the jade slip to reluctantly let the two of them accept it, after all, such a choice, Old Man Xu still suffered a little, but this was also a matter of no choice.

Select Start.

The first exercise chosen by Qin Yuan was the Origin Wisdom Sutra of Buddhism.

Xiaoyou's first choice turned out to be the Origin Wisdom Sutra of Buddhism, but it surprised Lao Dao. Old man Xu, who was watching from the side, looked at Qin Yuan in surprise.

Qin Yuan smiled faintly, in fact, Qin Yuan had already wanted to get a glimpse of the whole picture of this Buddhism Origin Wisdom Sutra, known as the first wisdom scripture developed by Buddhism, if it could really be cultivated, not to mention the first wisdom of the Three Realms, it would also be in the forefront. But the real situation is that no one has ever completed the cultivation of the Origin Wisdom Sutra, except for the person who created the Origin Wisdom Sutra. This is why Old Man Xu is so generous to take out this kind of thing that can be called the treasure of Buddhism.

Of course, the martial arts books that could be stolen out by Old Man Xu and put in front of Qin Yuan all had problems like the Origin Wisdom Sutra.

However, it can also be seen from this that Old Man Xu's magical powers are vast.

The reason why Qin Yuan chose the Origin Wisdom Sutra first was because of the Vientiane True Wisdom Mind Technique, that is, the Qingtian Emperor's Great Divine Power that was now fused into one. As the core of the Vientiane True Wisdom Mind Technique, the Dharma Spirit is equivalent to the soul of this supernatural power, and the Vientiane True Wisdom Mind Technique, which is the shell, has been optimized by Qin Yuan and is very mature. At this time, if you want to improve the computing power of Vientiane True Wisdom Mind Technique, you can only continue to improve the level of supernatural powers, and it is no longer possible for the essential structural changes to drive the improvement of computing power.

This is also why Qin Yuan has been pressing the level of Vientiane True Wisdom Mind Technique, just to lay a solid foundation for this divine power.

Qin Yuan's original plan was to drag this supernatural power to the Yuan Infant Stage, and if there was no change at that time, he would start to officially raise the level of this supernatural power. And there is no doubt that this experience has made Qin Yuan's self-created supernatural power from the beginning usher in another big improvement, the Origin Wisdom Sutra, what kind of magic power it has, Qin Yuan has been looking forward to it for a long time.

Gently pointing at the top-grade jade slip of the Origin Wisdom Sutra, an overwhelming torrent of information poured into Qin Yuan's sea of knowledge, and the Dharma Spirit, who had already been ready, methodically summarized and sorted out the influx of information, and after a while, a Buddha fruit emitting golden Buddha light appeared on the spiritual root of Qin Yuan's sea of knowledge.

At the same time, on the dark green jade slip on Qin Yuan's right hand, there was also a stream of information flowing into the blank and colorless jade slip next to it like a bridge.

The jade of the Origin Wisdom Sutra was simplified to gray ash, and there was also a pool of clear green water in the blank colorless jade slip.