On this side of Yanbian Lake, there was originally a factory that was used as a place to discharge sewage, and it was also a stinky lake.

Over time, almost all the residents of the lake moved out of Yanbian Lake, so that there were almost no residents around the lake, only a few factories.

Later, when the government began to pay attention to environmental protection, the factory was shut down, and Yanbian Lake began to treat sewage, but due to the limited technical level, this result was not very good.

As a result, the shore of this Yanbian Lake began to become desolate.

Otherwise, Yang Chen would not have taken this land so easily to build Lingwu Villa.

However, when Yang Chen began to take over the construction of Lingwu Villa, he began to use the means of the metaphysical world to purify Yanbian Lake.

The means of the metaphysical world, the pollution control is still fully competent, from the start of the construction to the present month, Yanbian Lake has changed from a stinky lake to a beautiful scenery. The water quality has also improved all of a sudden, from the original minimum five categories of water quality to the current class of water quality, which can be directly drunk. If those businessmen knew, they would definitely develop Yanbian Lake into a high-end residential area to make money.

However, now all the plots around Yanbian Lake have been taken by Yang Chen when the land price was not high before.

It can be said that now in fact, Yang Chen's Lingwu Academy can completely surround the entire Yanbian Lake. However, it will be the second phase of the project, the third phase and even longer. Yang Chen's long-term plan is indeed to make Yanbian Lake the inner lake of Lingwu Academy within ten years.

As for now, Lingwu Villa only occupies a part of the lakeside of Yanbian Lake.

Yang Chen set up a formation in order to purify the water quality, and this formation also integrated some of the functions of the feng shui array, making the feng shui of the entire Yanbian Lake quite good.

And this formation is actually a part of the "Yuan Magnetic Xuanchen Cave Heaven Great Array" with magnets as the core of the large array laid out by Yang Chen.

This formation can be based on a heavenly treasure and a powerful spiritual weapon as the core, turning an ordinary place into a spiritual land equivalent to a cave heaven blessed land, which is very suitable for the cultivation and residence of monks.

This is also a formation that has been specially analyzed in later generations, and the great forces of later generations have basically extended this formation to the point that it is laid out in almost any more important area. Because it has the powerful effect of changing the attributes of the leylines, the geographical environment, and enhancing the concentration of energy particles, in such an illusion, whether it is cultivation, combat, or defense, it will be greatly gained, and it is one of the necessary formations jointly recommended by the three major forces of the Chinese Dao Alliance, the Inter-American Parliament, and the Holy See in Europe. Of course, the formations of the three major forces are all combined with their own unique techniques, and each has different characteristics, but they are all born from the Yuanci Xuanchen Cave Heavenly Great Array, so they have not changed their names.

During the last attack that led to Yang Chen's rebirth, Yang Chen communicated with other comrades-in-arms who committed suicide attacks, and it happened that there were comrades-in-arms from the American Council and the Holy See in Europe who knew this formation technology, and they exchanged techniques with each other before the war, and planned that if everyone could survive the attack, they would go back and vigorously promote the combination of the three technologies to further enhance the power of this formation. At that time, there was no need for technical control. Humanity is at stake, and if we don't exchange technology, it's really too late.

Unexpectedly, after the attack, Yang Chen was reborn, and these three technologies were cheaper for him.

It's just that the environment is still different from that of the future. The requirements of this formation layout are really not easy to meet. Fortunately, Yang Chen hadn't found that magnet that could be used as the core of the formation, and he really couldn't build this formation.

Of course, improving the environment is only one function of this formation. In addition, the Yuanci Xuanchen Cave Heaven Great Array also has a strong defensive ability and counterattack ability, it can form its own space, creating a small cave sky that is semi-independent of the outside world, and it is basically difficult for ordinary attacks to affect the large array. Because it largely doesn't exist in this space, unless you have the means to traverse the space to attack, normal attacks won't work against it.

At the same time, in this small cave sky, there are also laws of heaven and earth that are almost completely different from the outside world, these laws of heaven and earth can only be adapted to by Yang Chen, the master of the formation, once the enemy from the outside world comes in, he does not need Yang Chen to attack, he will automatically be limited by the laws of heaven and earth in the small cave sky, and his combat effectiveness will naturally be greatly reduced, not to mention others.

This is the most powerful part of this Yuan Magnetic Xuanchen Cave Heaven Great Array. It is also the reason why the major forces in later generations used it as a standard formation in important areas.

It's just that it's not that easy to do.

In addition to the previous Yang Chen's magnet, which is a natural material and earth treasure, it also needs many other things to cooperate before it can really take shape.

In fact, the current formation is only less than one percent complete. But even so, it was enough to deal with those ancestors. This is a big formation that can hold on to the invincible battle with the invasion army of the Trojan Federation in the future, and at that time, the main force of the battle was at least the ninth order of the meteorite, and the eighth order of the meteorite was not even qualified to be cannon fodder. It is not a problem at all to deal with an opponent of the eighth order of the Meteorite.

Basically, as long as it wasn't for more than ten Ancestors working together, it would be impossible to break the formation. This is also the reason why Yang Chen is so confident in this formation, and his first reaction when he encounters an attack by the Ancestor is to return here and wait for the Ancestor to attack.

Compared with the Ninety-Five Towns Dragon Feng Shui Array in the capital, the Yuanci Xuanchen Cave Heaven Array is even higher in level, but the Ninety-Five Towns Dragon Feng Shui Array has spent hundreds of years to accumulate strength, and it is far more than the formation that Yang Chen has laid out now. Once Yang Chen completes the formation and accumulates it for a period of time, the effect will far exceed that of the Ninety-Five Town Dragon Feng Shui Great Array.

Now, the part of this formation that is less than complete has only opened part of the functions of purifying water quality and transforming the environment, and other functions have not been opened.

Yang Chen is ready to turn on all the functions.

Right now, there is no one in Lingwu Villa except Yang Chen. The workers who once made it so bustling have received their wages and are all going home. And the people left behind at the construction site were also sent on leave by Yang Chen.

The entire Yanbian Lake, an area with a radius of several kilometers, is now dead silent and terrifyingly deserted. Yang Chen would not let people come back until he had repelled the attacks of the Ancestors, so as not to cause unnecessary losses.

Of course, after the completion of the large array exceeds two percent, the small cave sky is basically formed, so there is no need to be so troublesome. As long as the formation is not broken, the others can completely hide in the cave sky, not afraid of being attacked by the enemy. That can't be done now.

The location of the central villa is on the shore of Yanbian Lake, and out of the villa, it is a winding path inlaid with irregular pebbles, which contrasts with the surrounding flowers and trees, which has a bit of natural meaning.

Follow this road to a small pier on the shore of Yanbian Lake.

At present, several small boats have been moored by the dock, which is used to clean up the garbage in Yanbian Lake. Yang Chen also booked a few viewing boats that could be used to tour the lake and view the scenery, but this thing has not yet arrived, and it is still not available.

Yang Chen got on a small boat and drove it to the center of Yanbian Lake.

Yanbian Lake is an irregular, probably oval-shaped lake. There are seven small islands in the lake, all of which are not very large, that is, fifty or sixty meters in diameter. Each island is covered with dense trees, and in the shade of each of them is a pavilion with a simple and elegant shape. The seven small islands are roughly arranged in the shape of a Big Dipper.

And the place where the handle is pointing, that is, the place where the North Star should belong according to the Big Dipper, is exactly where the central villa is located.

At this time, it was getting late, and the dim yellow afterglow that was obliquely illuminated through the clouds, like a series of dim yellow lightsabers, fell right on the seven small islands, and the afterglow was reflected in the clear turquoise water. The breeze blows, the lake is slightly rippling, a little bit of broken gold light wraps the seven bright islands, and a faint mist rises from the lake, it looks like a fairyland, the scenery is picturesque, and it is extremely moving.

Yang Chen rowed a small boat and walked between the seven small islands, looking at the sunset overhead, the mist around him, and the green mountains and forests not far away, the green mountains and green mountains complemented each other. In particular, Yanbian Lake is not a stagnant water, there are many small streams flowing into the lake among the green mountains, and there is a river out of the lake, becoming a tributary of Xiangshui, which is a little more vibrant, people swim in the painting, and the scenery floats on the water, which makes people feel refreshed and happy.

However, Yang Chen did not come to enjoy the scenery. He sailed through the different islands, and finally came to the farthest island of the Big Dipper, docked the boat, went to the island, and came to the pavilion.

He sat down cross-legged on the death table in the pavilion, closed his eyes and thought to the bottom of the pavilion, touching a piece of jade buried there.

It was a special piece of jade engraved with many particle equations, and its force field extended downwards and penetrated deep into the leylines of the earth. Touched by Yang Chen's divine thoughts, the jade suddenly exuded a faint green glow, and the power of the leylines was also triggered.

The next moment, a faint green glow rose into the sky, and then slowly disappeared into the air.

Yang Chen's hand changed a few movements, guiding the power of the leylines to pour into the jade buried elsewhere on the island, and as he observed with his divine thoughts, the formation nodes on this island lit up.

Then he left the island and went to the other six islands to do the same. Each island was a faint glow of different colors rising into the sky and dissipating into the sky.

In the end, Yang Chen returned to the central villa and went to the basement, where the jade engraved particle equation was also buried, and after being triggered, eight colorful bright stars suddenly appeared in the sky, which happened to be the appearance of the Big Dipper and the North Star.

Then, eight bright stars shone brightly, and they fell in their respective directions, falling into the seven small islands and the central villa.

Yang Chen's keen divine thoughts felt that the entire heaven and earth seemed to shake slightly. It wasn't the heavens and the earth shaking, but the space within the formation was shaking. This means that the completed part of the entire Yuan Magnetic Xuanchen Cave Heaven Great Array has been opened.

Yang Chen sat cross-legged in the basement, a smile appeared on the corner of his mouth: Next, we will wait for the ancestors to come to the door.