There is a formation eye in the center of Pan Taoyuan, which is a boxy jade platform, with a length and width of one meter and a half, and a height of about one meter. There are many golden secret patterns on it, and the materials used to draw these dense patterns are made from some discarded spiritual jade powder with gold powder and some other substances. This material can conduct energy quite effectively, which has a similar effect to Mithril, and is still a non-renewable consumable, which is quite precious.

The 4,000 sensing points at the edge of the platform correspond to the 4,000 large array nodes made of spirit jade pieces on the periphery of the Great Spirit Gathering Array, and the operation of the energy array of the large array can be changed somewhat by connecting the sensing points in different ways, so as to achieve the purpose of controlling and changing the function of the formation.

When Li Yunfei originally designed it, the entire Spirit Gathering Great Array was only the simplest layer of textures, and there was only one extremely simple function, that is, gathering energy, and then these other circuits were superimposed one after another to add functions to the large array.

For these energy circuits, it is Huang Yueying who pays the most attention to it, her talent is indeed much better than Lu Lingqi, and even better than Li Yunfei herself, because of her help in the past half a year, she has added several very good functions to the Pantaoyuan Great Array.

For example, the thermostatic function that is being used now is what she came up with, borrowing the foundation of the large array energy field on the periphery, and drawing out the geothermal heat at a depth of thousands of kilometers underground, raising the temperature of the entire garden to nearly twenty degrees. Now the temperature outside has dropped to nearly zero, but the garden is still warm as spring, and the peach trees and grapes are still green and green, without a trace of autumn and winter.

In principle, the temperature regulation function of this formation only needs a few simple circuits to operate in reverse, leading a cold current of several kilometers or more to descend to the ground to quickly reduce the temperature of the garden.

Of course, this consumes more spiritual energy, if it weren't for the fact that the concentration of spiritual energy in the garden has more than doubled after Taishan's return, Li Yunfei has officially thought about building a glass house to keep the garden warm on a large scale.

……

It is said that at the beginning, this wish power could be reconciled with other energies to form something similar to spiritual energy, which was completely an unexpected gain, and it was this unexpected harvest that made it possible to refine spiritual materials with the help of the formation pill furnace.

After a few months of observation and analysis, we have also roughly figured out the process of plants absorbing the power of wishes and producing spiritual energy to give birth to spiritual fruits, and in principle, refining the elixir is also a matter of course.

A few days ago, I sent a drawing to the Ministry of Industry, and at the same time explained the material requirements, and then the freshly baked Dan furnace was cast within a few days.

The Dan furnace is not a common three-legged tripod or something like this period, but it is a bit similar to the legendary Bagua furnace, of course, the Dan furnace is not a gossip array, but three hundred and sixty inlays are left, as long as the inlay is used for those carved spiritual jade.

The diameter of the furnace is one meter five and one meter high, and the height of the tripod is one meter and five, and the diameter is one meter, so the tripod can be directly put into the furnace, of course, a small half of the height is left to wait for the spiritual material to be successfully refined in the future to add the formation.

The total weight of the furnace is about two tons, and the base material is bronze, but the inner and outer layers are wrapped in gold, which looks extremely beautiful.

Of course, as long as the spiritual material refining is successful, then you can add more formations to the Dan furnace and add many functions, so the refining of this spiritual material is very important, as long as it is successful, everything is not a problem. The first material to be refined is, of course, Mithril, which is by far the easiest and most likely thing to refine......

"Daddy heard that the Dan furnace is ready?" Before the sound of people arrived, Lu Lingqi came again, and she came once a day these days.

"Yes, but why don't you practice your flying sword well, and why are you here to guard me?"

"If you practice too much flying sword, you will feel nauseous, so come and see Daddy!"

"Mental power is too depleted, you should go back and get a good night's sleep!"

“…… Dad, why do you keep driving me away after you come back from Mount Tai Fengzen, are you waiting for a few ladies to come over? Lu Lingqi finally asked the doubts in her heart.

"Yes and no...... Qi'er, we are father and daughter, after all, we still need to keep some distance, when you have time, go to Huang Yueying to discuss some things in the formation, it will be good for you. Li Yunfei is really afraid that this daughter will stick to herself all day long and the relationship will be too close.

“…… Oh, then I'm gone! Lu Lingqi turned around and left a little lost, thinking about it, it seems that what Daddy said is right, now that she is not a child, it is not a way to stay by Daddy's side all day.

Seeing Lu Lingqi leave a little lonely, although Li Yunfei was a little careful, he still shook his head and stopped caring about her, this girl has pretended to be pitiful like this several times, it is certain that as long as she screams, she will not leave today, and she will circle around her all day long.

Retracted his gaze and opened the lid of the tripod, the volume of the tripod is quite large, and it can put a lot of things, but of course refining Mithril requires a lot of aura, and the more Mithril is refined, the greater the consumption, so the first time it must not be loaded with too many things, just a little more than a dozen relatively small silver weapons.

After the things were placed, the lid was closed, the lid was rotated, and the formation circuit was aligned, and the gathering array was activated instantly, and the formation dragged the aura in the Pan Tao Courtyard to converge towards the Dan furnace continuously, because the flow of energy even caused a gust of breeze, and the clouds and mist attached to the ground also continued to converge towards the Ding furnace, which was absorbed and disappeared by the three formations on the furnace, which looked very strange, Li Yunfei also sat next to the Dan furnace, carefully perceiving the changes in the materials in the Dan furnace.

Everything is almost as expected, those aura in the special formation of the activation and blessing, and the silver did have some reactions, in the end what the situation is can only be verified after the results come out, but there is a reaction This shows that this method should be feasible.

The process of the reaction is quite slow, and if you want to wait for the reaction to end, it may take more than ten days, and then you can see the refining results, but the spiritual energy consumed is a bit large. After the formation of this Dan furnace was activated, nearly one-third of the spiritual energy in the Pan Tao Garden was absorbed, and the mist that spread to the knees had subsided several centimeters......

"Your Majesty, the concubine has brought you food." It was still the voice of the foot trainer who arrived before the sound arrived, but he didn't come alone, Lanzhi and Xiaofan also came together, and there were four palace maids, who brought a lot of things.

“…… Xiaobu, do you want Gao Ye to cook, why did you even bring hot pot and barbecue grills? ”

"Your Majesty likes to eat hot pot and barbecue!"

"Actually, you don't have to bother, you see I've already brought good food." Li Yunfei pointed to several bags of food in the jade not far away and said.

"How to eat cold food in winter, you need to eat hot rice!"

"Is this winter?"

"Well, it's winter outside!" A few people quickly set up hot food on the stone table in the pavilion, the hot pot was boiling, the barbecue grill was put up, and the fruit wine was full of enthusiasm, but they could only eat a big meal first.

However, Diao Chan, Zhen Mi and Min'er also brought people over, in addition to bringing a lot of food, they also brought a lot of daily necessities, because they heard that Li Yunfei would retreat in Pantao Courtyard for half a month, and then Da Qiao and Xiao Qiao also arrived...... It really looks like I'm going to move here for a long time.

It's usually good for this woman to have more, but when she wants to concentrate on doing something, she always has various reasons to come to herself, and she does have a little headache, but they care about themselves so much, as a normal person, they really can't be angry, and it's a happy trouble.

After being full of wine and food, Li Yunfei continued to observe the changes in the materials in the Dan furnace, and the girls did not leave the Pan Tao Garden, but walked in pairs and threes to play in the Pan Tao Garden. Although the scenery hasn't changed much, it's still a lot of hard work, and the most important thing is that it's much warmer than outside......

After carefully observing for most of the day, it was finally determined that there should be no problem with the refining of materials, but there was no other way to speed up, and the results could only be revealed after ten days.

It didn't seem necessary to continue to wait like this, lest some palace maid come over and move the things in the Dan furnace, so he simply hung a sign outside the Dan furnace, stating that he was not allowed to approach and move, and then left.

There are quite rules in the palace now, as long as it is written that it is not allowed to move, no one will dare to move, because Li Yunfei has the supernatural power of the astral body to investigate the past, and whoever violates the palace rules will be found and punished accordingly, no matter how secretive it is.