Not long after, the four ancestors all returned to their respective sect teams, and they all recruited the high-ranking monks of their own sect and made some arrangements.

In fact, from the time when Xiao Zhenhai was about to attack the Dragon King just now, the four ancestors all discovered the extraordinaryness of the Dragon Clan's formation, and if they wanted to win this battle, the first thing they needed to do was to break the formation.

Although the four great ancestors felt that this formation was a little extraordinary, they were not too worried about breaking the formation in their hearts, they felt that with the tens of thousands of monks of the four major sects, even if it was one person and one mana, gathering everyone's strength, not to mention a small formation, even if it was an interface, it could be broken.

So, after the half-pillar incense, with a deafening drum beat in mid-air, the monks of the four major sects began to move under the command of many Jiedan elders.

For a while, I saw that above the sea, a dense crowd of people was rushing towards the royal city like a tide.

From a distance, the monks of the four sects were distinct and distinct, each of which covered a radius of several miles, and all took out flying swords, flying knives, spears, and copper hammers in their hands...... All kinds of magic weapons appeared one after another, and the sound of killing in their mouths shook the heavens and the earth.

Not long after, tens of thousands of monks came to the periphery of the light curtain, and under the orders of the elders of the several sects who led the team, they all used their mana and began to attack towards the formation light curtain.

For a while, colorful spells smashed into the formation light curtain at the same time, flying swords, flying knives, and all kinds of attacking magic weapons also bombarded towards the light curtain.

Patches of smoke and dust spread out at the light curtain almost instantly, and the sounds of killing and cracking also sounded at the same time, and the outside of the royal city seemed to suddenly become purgatory.

As early as when the Dragon King returned to the city tower, the Dragon King knew that it would not be long before the four major sects would start to bombard the formation, so as soon as he and the several demon kings returned to the city tower, they began to arrange the formation defense.

He sent a large number of elite dragon warriors, all of whom were arranged inside the earthen buildings in a circle of outer circles. Every ten zhang inside this earthen building, there is a small array eye, and these array eyes are placed with magic elements to maintain the operation of the formation.

And these elite dragon warriors are responsible for transmitting mana to the eye of the formation to strengthen the power of the formation.

At the same time, the Dragon King arranged all the demon cultivators around the Yin Eye and Yang Eye in the royal city, which were the two main array eyes, which must be controlled by high-level cultivators who had reached the Dan stage.

By the time the four major sects launched an attack, all the arrangements had already been put in place. For a while, the light curtain of the formation was once again condensed several layers, and the ring light curtain with a radius of a hundred miles suddenly shone brightly.

The Ancestors of the Four Great Sects and the other Yuanying Cultivators were all suspended in the air at this time, they did not participate in the offensive formation, but stood on a high place, looking at the entire battlefield.

At the beginning of the attack, the momentum of the monks of the four major sects was very high, and all the cultivators had the idea of attacking the formation light curtain with all their might.

But as time passed, they found that no matter how hard they attacked, the white light curtain was always like an iron wall, unable to be shaken, not even the slightest change.

The spells released by the crowd disappeared one after another in the flickering of the light curtain as if they were sinking into the sea. And the magic weapons released by everyone were also bounced off one after another when they hit the light curtain, unable to cause any damage to the light curtain.

After a long time, some of the lowly cultivators had some mana shortage, so they stopped attacking and began to replenish their mana.

And after attacking for a while, even the monks who were more advanced in cultivation began to look ugly, so the speed of the attack became slower and slower, and the spells became fewer and fewer, and after about a stick of incense, almost most of the monks of the four sects stopped attacking. There are only a few monks left, who are still insisting on releasing spells and continuing to attack the light curtain, but looking at their appearance, they won't last long, and their mana will be exhausted.

The four Ancestors looked at all this and frowned.

Li Yuande opened his mouth and said: "I didn't expect this formation to be so difficult, it seems that we still underestimated the strength of the Dragon Clan, I don't know who these barbarian demon clans got this profound formation from." Wan Daoyou, your Canghai Sect has always been very proficient in formations, can you see if there is a way to crack it?"

Wan Yangbo said: "Speaking of the way of formation, I'm afraid that none of the four major sects is more refined than my Canghai Sect." The old man has also studied many formations in his life, but with such a powerful formation, the old man is also eye-opening today.

I have to say that in front of this formation, the mountain protection arrays of several major sects are simply paper-paste. So the old man has a request, after the dragon clan is killed, don't talk about anything else, the old man must get this formation, and I hope that the three Taoist friends will not fight with the old man. ”

The faces of the other three ancestors remained unchanged, but they all began to secretly scold Wan Yangbo, the old fox, in their hearts, at this time, they did not forget to eat more and occupy more.

However, the other three sects didn't know much about the formation, and if they wanted to break the formation, they had to rely on Wan Yangbo, so they could only nod and agree.

Li Yuande smiled slightly and said, "Okay, Brother Wan, since everyone has agreed to your request, then you don't hide your secrets, and talk to a few of us about how to break the formation." ”

Wan Yangbo smiled with satisfaction and said, "Several, please come with the old man." ”

As he spoke, he shook his body and flew high into the air.

When the three ancestors saw him flying, they all followed him and flew towards the sky.

After a short time, the four of them flew above the clouds. At this time, the outline of the entire royal city was in full view of the four great ancestors.

Wan Yangbo pointed to the royal city in the distance, and said slowly: "Fellow Daoists, please see, this dragon clan's royal city is very peculiar, it is actually a circle with a radius of hundreds of miles. ”

The three of them looked from afar, and indeed found that the dragon clan royal city in the light curtain was a circle as Wan Yangbo said, and they didn't speak, waiting for his next step.

Wan Yangbo said again: "The dragon clan built it like this, it must not be done at random. Look at the city, half light, half dark, and then look at the shape of the two sides of the royal city, it is two curved arcs, fellow Daoists, what can you see?"

Xiao Zhenhai suddenly said: "Tai Chi, what Brother Wan is talking about is Tai Chi?"

As soon as Xiao Zhenhai spoke, Li Yuande and Yao Tianqi both nodded in a sudden realization.

Wan Yangbo said with a smile: "Yes, Brother Xiao sees it very accurately. If the old man's expectations are correct, there must be two huge array eyes in this royal city, one is yin and the other is yang, and the key to this formation is in these two array eyes. ”

Li Yuande frowned, puzzled: "So what? Since the Formation Eye is in the Royal City, and we can't break through the light curtain on the periphery, and we can't enter the Royal City, how can we break the Formation Eye?"

Wan Yangbo said: "When the four sect monks attacked the formation just now, the old man carefully observed the formation and found that although the formation was difficult to shake, he still saw some subtle changes, that is to say, when the formation continued to attack the formation at a high density, the formation would still be weakened a little bit.

It's just that although all the monks of the four major sects attacked the formation at the same time, it seemed to be very powerful, but because the attack points were too scattered, it had almost no effect.

The old man thought about it for a while, and finally came up with a way, maybe it might work. ”

The three of them looked shocked at the same time, and hurriedly said, "What's the way?"

Wan Yangbo said again: "Let's take down all the monks first, so that everyone can recover their mana." After the mana is restored, we let the monks of the four sects take turns to attack one place, so that when the mana of the previous sect is exhausted, the next sect will start to attack, and the previous sect will withdraw and recover the mana. In this way, the monks of the four sects could carry out a continuous attack.

If you want to maintain such a large formation, I believe that the demon clan also needs a lot of demon cultivators to continue to maintain it with mana, but once we carry out the attack in turns, we can keep attacking, and the demon clan is afraid that we don't have so many manpower, and it is impossible to take turns to rest like us, so after a long time, they will definitely run out of mana.

As long as the formation is weakened to a certain extent, the four of us can work together to open a gap in the formation, and at that time, we will send the rest of the Yuan Ying Elders and some of the elite Jiedan Elders to quickly drill into the formation, waiting for the opportunity to destroy the formation eye, and at that time, wouldn't it be done?"

The three of them nodded in satisfaction, and the four great ancestors all returned to their respective sects separately to make arrangements.

I have to say that Wan Yangbo is indeed a master of the formation, and in a short period of time, he has analyzed the Bu Yuan Taiji Array to the point of eight or nine. This Bu Yuan Taiji Array, although it was taken out by Lao Di at will, is not a top-level formation, but in the human world, it can be regarded as a very powerful formation.

Although this set of formations is made up of a combination of various rare ores, because when it was formed, it could not find exactly matching materials, so it just found some substitutes with the same attributes, so that the effect was greatly reduced, which was one of them.

Second, although the number of magic elements brought back by Lu Hao was enough to maintain the operation of the formation, it was only said that under normal circumstances. In a situation like today, when tens of thousands of monks are full of mana and attack collectively, the maintenance of the Demon Yuan alone is still not enough to resist everyone's attack.

That's why the Dragon King will arrange all the elites of the dragon clan on the formation and the formation eye, and rely on the mana of all demon cultivators to enhance the power of the formation.

But even so, if the Terrans want to rely on a short-term concentrated fire attack, they will not be able to break this formation at all. That's why I came up with this plan, planning to use the method of continuous attack to weaken the mana of the demon cultivators on the dragon clan's side, this is fundamentally a game, and it is also a protracted war, the longer one side can hold on, the more likely one side will overwhelm the other.

Just when the Terrans withdrew from the battlefield and rested, the Demon Clan also took the opportunity to begin to recover. In this short firefight just now, although the demon clan successfully resisted the attack of the human race, the demon cultivators who were responsible for maintaining the formation also suffered a great loss of mana, and they had to take advantage of the gap to quickly recover their mana.