Zhou Fei stared at the sand table, and two days and one night passed unconsciously.

In fact, Zhou Fei had already found the root of the problem a day ago.

The aura of the city protection array was blocked.

The Four Holy Beasts relied on the aura of the Great Array to maintain their vitality.

The aura of the city protection array comes from heaven and earth, and from the national fortune of the Tang Dynasty.

The six countries united to attack the Tang Dynasty, and the temple played the banner of acting for the heavens, just to cut off the connection between the city protection array and the heaven and the earth, after all, this heaven and earth is the heaven and earth of the Daomen.

However, cutting off one place cannot hurt the foundation of the city protection array, because the Tang Dynasty has stood for thousands of years and has a powerful and incomparable national fortune.

Relying only on the aura provided by the national fortune, the Great Array of Protectors can always be strong.

But now, Datang's national fortunes have been artificially interfered with, and the other party has cut off the connection between the national fortunes and the city protection array, and indirectly cut off the source of the aura of the four holy beasts. Without the blessing of aura, the four holy beasts would naturally weaken.

In the same way, without the protection of the Four Holy Beasts, the power of the Great Protective Array would also decrease.

This creates a vicious circle.

If you want to interfere with Datang's national fortunes, you will never be able to rely on external forces alone.

In the palace, there is also the inner response of the temple.

Otherwise, it is impossible for the national fortune to be interfered with so easily.

Zhou Fei didn't have time to find this person now, he had to find a way to restore the connection between the Great Array of Protectors and the National Fortune.

According to Zhou Fei's observation, the four formation points were not the key to the problem, the person who started was quite smart, and knew that if he started on the Four Holy Beast Street, it would be easy to repair, so he found some corners that were not easy for others to focus on.

And through some special technique, these destroyed places have formed a confinement array.

Zhou Fei twisted a black chess piece in his hand, and this chess piece was the center of the city protection array.

After thinking about it for a long time, Zhou Fei slowly put the chess pieces into the city of miniature carvings.

As the chess pieces fell, the moat changed.

The aura trickled through every street, moistening the already dry spots.

But when the spiritual qi flowed to the streets of the Four Holy Beasts, it was blocked.

Something invisible, blocking the aura from flowing into the streets of the Four Holy Beasts.

Zhou Fei even heard the mournful screams of the four holy beasts.

He frowned, took the pieces back, got up and left the room.

After sitting for two days and one night, Zhou Fei's bones were a little stiff, and he made a crisp clicking sound while walking, like a robot.

I found a stall outside the house and dealt with the two of them, and then went directly to the north wall.

Looking out from here, you can see the army of Chu State.

And on the city wall, the city guard cannon has also been equipped.

It's just that ammunition is still scarce, so it's not time to give the Chu army a little hardship.

The soldiers on the city wall all knew that although these terrible weapons were all made by the refiners of the refining workshop, the greatest credit came from Mr. Six of the academy, so they also had a lot of respect for Zhou Fei.

Zhou Fei motioned to them not to mind themselves, and walked back and forth in the city alone.

He didn't come to see the army of Chu outside the city, but set his sights on the inside of the city.

Although the army outside the city pressed the border, the people in the city were not too panicked.

This kind of calmness comes from the millennium heritage of the Tang Dynasty.

Even if the whole territory is almost about to fall, as long as Chang'an is still there, the people in the city believe that the Tang Dynasty will not die.

They work every day from sunrise to sunset, and live as regularly as ever.

The people are very stable, which can indeed make those officials in the palace breathe a sigh of relief, after all, the people are not flustered, and the officials can put more energy into other aspects.

But such days are destined not to last long.

Because the granaries in the city are also dwindling day by day.

When the food runs out, the end of Chang'an City will come.

Man cannot starve, and those who are hungry will lose their minds and become wild beasts.

Zhou Fei shook his head, threw these emotions that didn't matter to him to the back of his mind, and then stretched out his hand and slowly released his aura, feeling the entire Chang'an City in this way.

"What is Mr. Six doing?" The soldiers patrolling on the side noticed Zhou Fei and were quite curious about his strange behavior.

Another soldier said: "Why do you ask so much, does Mr. Six still have to explain to you? The key explanation is that you will not understand, and the master has his own reasons for acting." ”

"I'm just curious. If it weren't for Mr. Six's whimsy, there would be no such novel weapons, and we wouldn't be able to stand so straight, would we? When you didn't have these weapons before, looking at the army outside the city, you dare to say that you didn't panic?"

"Phew, that's you, Lao Tzu always believes that Datang will win, no matter what happens! ”

"Hey, you're still coming with me, aren't you, find a place tonight, let's practice alone?"

"Go and go, I'm afraid you won't make it!"

"What are you two doing, don't you patrol well and chat here, are you idle?"

A scolding disrupted the conversation between the two, and the captain of the patrol team came over, and after noticing Zhou Fei in front, he was even more furious: "Mr. Six's business here, you two are still chattering on the side to disturb Mr. Six." Go and find the men of the Penal Division to get the ten sticks. ”

"It's the captain. The two soldiers did not dare to refute, and ran to receive the criminal law.

The patrol captain was afraid that someone would come to disturb Zhou Fei, so he simply stayed here.

About a quarter of an hour later, Zhou Fei opened his eyes.

His demeanor was more tired than ever.

At the same time, there is a hint of confusion hidden in the depths of the eyes.

The deeper you perceive, the more hopeless you feel.

Zhou Fei turned around and saw the patrol captain who was protecting the Dharma for himself, and said, "Please bring me some paper and pencils." ”

"Yes, Mr. Six. ”

Soon, the patrol leader took the pen and paper that Zhou Fei needed.

Zhou Feipan sat on the ground and drew out the solution he had conceived in his heart.

But every time I draw, it doesn't last long.

Because every method that Zhou Fei envisioned would not be able to continue at a certain node.

The stack of paper was quickly consumed, and Zhou Fei's side was full of crumpled balls of waste paper.

His expression became more and more manic.

Although the refining workshop is working overtime to produce firearms, due to the scarcity of raw materials, there is an upper limit to the number of firearms after all.

There are more than 200,000 troops stationed outside the city!

Once the other party determines that the city protection array cannot be repaired, then they will use human lives as bargaining chips and forcibly enter Chang'an City.

Without the Great Array of Protectors, Chang'an is destined to fall.

But Zhou Fei couldn't think of a way to solve the problem of the city protection array in one package.

So he was very irritable, very frightened, and very helpless.

What's more, after just such a while, the situation of the big array has deteriorated a little bit compared to before.

According to Zhou Fei's speculation, the Great Protective Array can last for another four days at most......

These four days have determined the fate of Datang.