A thin layer of light curtain separates the two worlds inside and outside the courtyard, and through the waist-sized hole in the courtyard wall, a visually different light comes into view. The light through the hole in the wall is very soft, with a quiet and beautiful coolness, and even a few traces of comfortable wind blowing in a trance, like an air conditioning outlet, it is simply a natural air conditioner made by nature.

Seeing that Zhu Beichen still had doubts, the world outside the courtyard was unfamiliar, and Qijian smiled kindly: "What's the matter, Beichen." Don't you want to go? Walking out of this courtyard is the sand-buried ancient city that we have been thinking about for a long time, don't you want to see it with your own eyes? ”

Zhu Beichen said: "But I always feel restless, and it seems that there is a greater danger waiting for us ahead." ”

He was the only one who thought like this, and Shichima also had the same premonition, and he said: "I'll come first, waiting here will be fruitless, and they must be in other locations in the ancient city in July." The way to enter and exit the ancient city may be the dismemberment and fragmentation of some kind of molecule, and then the process of reuniting and reorganizing after entering the city, I don't understand the scientific and technological principles contained in it, since this way, the teleportation landing point may be random. As I said earlier, this city is not easy, and we need to find some way to find the three of them.

Nominally, they were worried that they would encounter unpredictable dangers in the city in July, but in fact, the other two knew that the most unstable factor was that Second Master Jiang. Provided, of course, that he is still alive.

Carefully compressing his body to a certain extent in order to pass through the hole in the wall, and when Zhu Beichen was the last to get out of the hole in the wall and came to the outside world, he couldn't adapt to the light outside the courtyard for a while, and he almost didn't believe his eyes.

Because, it's dark. The bright moon hanging overhead, and the bright stars stay in the sky above the ancient city like dazzling gems. The night was unusually quiet, and the scorching heat turned into an evening breeze.

The night is as cold as promise, and the evening breeze is like water! It was such a night when Zhu Beichen discovered that he was standing on the side of an alley path, and then realized that there was such a difference in the time inside and outside the courtyard, on one side was the blue sky and white day with the heat wave, and on the other hand, the night when the bright moon and stars gathered, and there was a small courtyard wall in between.

Zhu Beichen said: "Just crossed a time zone?" No, even if you cross time zones, there are several time zones. "I feel cold for no reason, I feel that I am far from keeping up with the changes in the ancient city, and the sand-buried ancient city is far from my original vision.

The streets are more than three meters wide, and the streets extend in both directions to the dark ends, and the shadows of trance seem to shake at the end of the road. Except for the three of them, there is no breath of life.

The fat man said, "Do you think it's across time zones?" You forgot what Brother Qi said, the time distribution here is uneven, and there is a time difference in and out of the courtyard. ”

Perhaps, this is the characteristic of the ancient city buried in the sand.

Qijian smiled and said: "You still remember Su Hao's diary, born in the Republic of China, but when we met him, he was still like a young man, so I was a little suspicious that there was a problem with the time of this ancient city." In the theory of four-dimensional space, it is a four-dimensional world composed of three-dimensional space composed of three-dimensional points, lines and planes and time elements. Now we are fortunate to be in this kind of world, although I don't know what kind of technology the aborigines of the ancient city of Sand Buried used to build the four-dimensional space, but we are now in the four-dimensional world. ”

There is also a point of Qijian who is unwilling to confess to Zhu Beichen, July had seen Zhu Beichen's body when he entered the Sun Tomb, and the diary found on the corpse recorded the date of the day before his death was around June, which coincided with the time when Su Hao entered the ancient city. The same year is a full half a year away from the real time, so he is suspecting that the ancient city world is a four-dimensional world that exists differently, and the time distribution in this world is not only uneven, but even chaotic.

Walking along one side of the road to the end by the light of the moon, the road lines twisted and twisted along the way, on both sides are houses and buildings similar to the previous courtyard, the four-dimensional world is no different from the three-dimensional world on the surface, and the role of time, the key component of the four-dimensional time in the mouth of the seven rooms, is almost imperceptible, if it were not for the clear day and night found before.

The fat man finally turned out a flashlight, illuminated the white wall and road, and asked: "There was a polar day phenomenon in the courtyard just now, I don't know if the time outside is just the opposite, and I will never be able to wait for the sun the next day." ”

Zhu Beichen's heart flickered, what the fat man said was not impossible, the exploration of four-dimensional time has been at the theoretical level, and it is impossible to verify whether this kind of space exists, and what the laws of things in the space are.

Zhu Beichen secretly said in his heart that he was a little ashamed, these two things knew more than himself, on the contrary, he was a blank slate, he asked: "The polar night phenomenon?" It can't be that the whole city is at night all the time, so how do the people here live? ”

Shichima's expression was not relaxed at all, frowning and clutching his chest, the corpse poison in his body faintly showed signs of attack: "Let me give an analogy, of course it may also be my guess." Like the outside world, we all rise at sunrise and rest at sunset, but this is our human thinking, and there are also species that have developed the habit of rising at night. In this way, the polar night of the ancient city is deliberately created, where we can never see the sun, at least not on the streets. ”

In addition to the fact that the dwelling is always in the polar day, it can be understood that highly developed civilizations will choose to rest during the day due to the needs of the characteristics of the species, so they use scientific and technological means to make the dwelling always in the daytime, which is convenient for sleep. Is this artificially created time difference a real thinking space? The rickety flashlight guided the way in front of the road, and Shichima held on to the wall in thought, touching the wall little by little.

It took him about thirty minutes to walk forward, and Shichima flipped his palm, and a patch of bright red blood oozed from his palm, and he could be sure that there was no wound in his palm, and it must have been rubbed when he touched the wall. How can there be blood stains on the walls made of jade bricks?

"Wait, I have blood on my hands." Seven Houses.

"Oh, Brother Seven, you're always injured, I'll bandage you." The fat man said that he immediately unpacked his backpack and started to find the medicine box.

There is really no way to take this fat man, Zhu Beichen waved his hand to stop it, the blood has coagulated in the palms of the seven rooms, obviously it will not be his own blood: "Where did you rub it?" ”

The three of them were silent for a moment, and Shichima turned his head to look at the wall behind him that had fallen into the darkness, and he had been holding on to the wall all the way, and the opportunity to be contaminated with blood must have come from the wall. After putting it in his mouth and tasting it, Shichima was sure that the blood in his hand was human blood, "It looks like we're going to go back where we are going to go and see where it got it." ”

The fat man suddenly waved his hand at the two of them, and asked them to see the bloodstains found in the middle of the road ahead, and the bloodstains would be seen two or three steps apart.

Zhu Beichen said in surprise: "Bloodstains? Is anyone one step ahead of us? Or had they been here a few hours earlier, July, and were injured? ”

With the guns and equipment that Qiyue was equipped with, if the three of them were all together, with the skills of Han Qingxin and Jiang Erye, plus Qiyue's ingenuity, I really couldn't think of anyone else who could make them hurt.

Shichijian said: "Fatty, follow the road, let's follow the bloodstains." "Whether it is July or not, the people who have walked this road must have encountered an unsolvable danger, it seems that the traps of this ancient city for outsiders have been activated one by one, I believe that it will not be long before you will encounter something, and the current calm may be just a prelude to all this.

The further you walked, the more blood stains were left on the ground, and the brows of Shichima were furrowed deeper and deeper, if it wasn't for the massive bleeding caused by the rupture of the arteries in the body, how could there be so much blood, and what was even more strange was that this person could still hold on to such a long distance despite such a serious trauma, which was really surprising and admirable. Shichima began to speculate that if the bloodstain was left by one of the three of them in July, then this person was most likely Han Qingxin, and only the crazy girl had the perseverance and physical strength to last for such a long time.

At the end of the road is an intersection, and the blood is missing at the corner of the intersection. Rows of antique buildings stand on both sides of the crossroads, the tallest of which is two stories high, and the mottled buildings outline the reflection of water chestnuts on the ground.

"The blood is gone." After speaking, Qijian looked at Zhu Beichen and then at the fat man, both of them were at a loss, and the injured person seemed to have disappeared out of thin air here.

Suddenly, an extremely dangerous aura came from the second floor of the seven left rear buildings, his face changed suddenly, and he gestured to the two of them to remind, seeing that the two of them were unmoved, he immediately shouted: "There is danger, get down quickly." ”

With the sound of the alarm, the two people who were in a daze did not know which direction the danger came from, and they fell on the spot one after another.

The ghostly speed of the fluttering figure jumped high from the ancient building, and slashed at the back of the head of Nanami with his bare hands, fortunately, Nanami turned around in time to find the other party's sneak attack, trying to pinch the man's arm, and under the accurate prediction of the on-the-spot battle, the man's attack shrank sharply, and almost at the same time swept his leg and swung his left fist to attack the right side of Shichima. I have to say that this person's attack method is a bit inferior.,At a glance, he aimed at the seven missing right arms.,Tightly grasp this weakness and don't let go of the serial attack.。

When it comes to the ruthlessness and speed of his moves, the person who came is on par with the seven, and the speed of his actions is as ghostly as the wind, and the three of them have not been able to see his appearance clearly. An inattentive and physically exhausted Seven Rooms were pinched by the opponent to attack the opportunity, and a side kick knocked Seven to the ground, and the pace paused slightly and continued to aim at Seven Rooms' head and dodge and kick over.

It's not good, Zhu Beichen can't ignore it anymore at this time, although he is very bottomless in his heart, this level of competition is not something he can participate in at all. In desperation, he had to use his body as a meat shield to penetrate and penetrate between the two, and he was kicked by the man, and the mountain-like calm strength made Zhu Beichen's internal organs turn over for a while.

"Beichen! How are you? ”