The tea was still warm, but the owner of the house was nowhere to be seen, and thousands of years later, the three of them accidentally broke into the room and drank the tea made by the owner's family. Zhu Beichen felt that his thinking logic was a little unturned, and the concept of time had become a little disordered, and the furniture was as good as new, or it was still exactly the same as when the master's family left thousands of years ago, and there was not a trace of dust left.

He remembered a news account of the time of the shipwreck in the Bermuda Triangle, where one had seen a ship sunk decades ago sail again, and the people who boarded the ship were completely stunned by the sight of the ship's interior, the intact interior furnishings, the coffee brewed still warm, and even the baked cake still fresh and edible, but the ship was empty, and the entire crew of the ship was missing. They seem to have gone in such a hurry that they have no time to react. The ship was still floating alone in this sea area, like a ghost ship floating on the sea without support.

Zhu Beichen seems to feel that there is a similar connection between the two, but the news describes a ship, but this is a magnificent ancient city, could it be that the people of the whole city chose to leave in a panic at the same time because of a sudden incident? It is impossible to imagine what happened to them all those years ago that caused the entire city to abandon the city, or if it was just the courtyard that was left vacant. He really doubted that there were still living people living outside the courtyard, or as Shichima said, it was a city that had been dead for many years.

In the first twenty-four hours of awakening, the strong hunger stimulated the nerves of the three of them, and they went to the empty room and couldn't find any food to eat, so the three of them stared at each other and decided to go back to the courtyard to find out if there were any other exits, although the seven had already stated that this courtyard could not be exited at all, and it was completely like a confined and closed space.

Zhu Beichen looked at the courtyard wall about two meters high, enclosing the house in a circle, isolating the outside world, and integrating with the architecture of the house, at least the house still has the outline of a door, but the whole courtyard does not even have a door for people to enter and exit.

"Seven rooms, do you think that the architectural style of the ancient city is like this, and the design does not leave a door. Did you see the door when we saw the outer wall of the castle before? When the autobiography of the ancient city was on the square, the scale of the entire city was displayed, Zhu Beichen was sure of his memory, and he was not dazzled, the ancient city had no door, but they did come in through some special way. Therefore, he judged that the way in and out of the ancient city was different from the common sense inference that we would think that buildings should have doors. For example, if we are human beings and we walk upright on our feet, we can't ask all animals to walk upright like us.

At least the way of entering and exiting the house in the courtyard is completely different from the modern architectural style, and the seven rooms also very much agree with Zhu Beichen's inference that there is an entrance and exit in the courtyard, but they have not found this way of entering and exiting so far.

"How about trying to circumvent the wall?" The fat man said.

The height of the wall is really not high, and it is too easy for an expert like Shichiken to climb over it.

"I've tried, how could the people before us not think of stupid ways we can think of."

Earlier, Qijian had tried to climb over the wall to get out of this courtyard, and the high courtyard wall was like someone had set up some kind of enchantment formation, and as soon as he climbed to the top of the wall, he was blocked by an invisible light curtain, and the huge recoil forced him back into the courtyard.

Time passed in a trance, and the days of the ancient city seemed to stretch endlessly, and the dazzling canopy of the sky was endless, but it was impossible to see where the light source in the sky came from. Similar to the polar daylight phenomenon, there is a celestial body overhead that never sets over the ancient city.

Unexpectedly, they desperately squeezed into the sand-buried ancient city, but their predicament never came to an end, the strong light carried a steady stream of heat, scorching the exposed muscles, and the fat man's tender hands were all red by the rays, whether it was strong light or radiation, the ultraviolet intensity was far beyond the capacity of human beings. Could it be that thousands of years ago, the sun here was so vicious? Wouldn't anyone who lives here all year round have to endure the sun 24 hours a day?

Lying in the courtyard, the fat man was listlessly exposing his belly, fanning the wind with his hands, his throat was dry and swollen, and said: "No, this sunshine is too poisonous." What the hell is this place really people? ”

Yes, in the ancient city where there is never a night, the three of them have more or less sunburned skin and began to dehydrate. Shichima checked the state of the two and said, "People are adaptable, especially intelligent beings, and the body will evolve after being exposed to such strong radiation all year round, and achieve a physical state that adapts to the environment. Now he somewhat understood why this was called the City of Death, and that normal human beings lived here, not to mention the traps laid by the ancients in the city, even the ubiquitous poisonous rays of sunlight were deadly.

Staying in the house is not the way to go, and the end result of lack of food and water is the same. Fortunately, the backpack of the seven rooms was still there, and the fragmentary utensils were turned out, as well as a bottle of anti-radiation plaster, no matter what the three, seven, twenty and twenty were distributed to them first, and they were applied to the skin. It seems that Wu Min has a lot of experience in surviving in the wild, and if it weren't for the fact that this meticulous woman had prepared a lot of ointments for strange purposes, she really wouldn't have been able to cope with such an emergency.

The symptoms of the itchy skin from the sun were slightly relieved, and Zhu Beichen suggested that everyone go around the courtyard wall and carefully search for the exit. He wondered if there was an invisible door hidden in the wall, just like the design of the door of the house, and the door of the general architectural design was roughly opposite the main entrance of the house, but there was no door in the expected part.

As he spoke, he began to walk, each of them responsible for the wall in one direction, and the room was next to the wall at the back, so if there was a door, it should be on these three walls. Touching the smooth wall from top to bottom, from left to right, Zhu Beichen even put his ear on the wall to listen to the sound of the outside world.

Knock~Knock!

Knock~Knock!

The regular percussion sound, touching the position three meters from the left side of the front wall, Zhu Beichen's nerves suddenly tensed, his face was hot and hot, and he actually heard the percussion from the wall at a fixed frequency of about three meters each time, and his heart also fluctuated.

Someone inside the wall? This kind of thought scared him all the time, in fact, Zhu Beichen himself couldn't tell whether the sound came from inside the wall or from the call of the world behind the wall. The sound sounded like some kind of metal sharp object was pounding against the wall, and he stared at the wall and his breath became rapid, and he beckoned the fat man and the seven men with his backhand.

The frequency of the tapping was in tune with the beating pace of his heart, Zhu Beichen felt extremely suffocated in his chest, almost unable to breathe in one breath, and his voice had an indescribable weirdness. This is an ancient city buried in the sand, a city that has been dead for many years, every step is a thrilling place of death, every step is a tight soul, and there is a sense of tremor when I think of the description of the seven rooms.

A quiet courtyard where a gesture can attract the attention of others. Qijian came to Zhu Beichen's side, and his hand was on Zhu Beichen's shoulder, helping Zhu Beichen settle down a little. One look at the boy's pale face, and then look at the corresponding wall, you can see that there is something strange here.

Qijian helped Zhu Beichen to the side to rest, and then looked at the wall, before asking if Zhu Beichen had discovered anything just now.

Zhu Beichen gasped for a while, and couldn't help but think: How could it be, the knocking sound was so loud, didn't you two hear it? When he saw that the fat man who was surrounding him was also at a loss, he knew that this kind of voice might only be heard by himself. The sound happened to come out as he approached the wall, reminding himself that this was the exit to the wall?

Zhu Beichen was a little worried, and this worry was completely inexplicable, he didn't know what he was worried about, and said to Qijian in a daze: "Inside the wall, there seems to be someone in that wall." He's alive, he's knocking on that wall. ”

Is it a signal to call for help, knocking on the courtyard wall can save him, I really don't know where this ridiculous thought came from in his heart.

Shichima looked at him suspiciously, touched his head, and was really afraid that something would happen to his body at this time, and that people might have hallucinations when they suffered from heat stroke. Now his head feels a little hot to the touch, but looking at Zhu Beichen's resolute gaze, it doesn't look like he's talking nonsense.

At Zhu Beichen's insistence, Qijian had no choice but to confirm: "Are you really sure that there is someone in the wall?" ”

Zhu Beichen said: "I don't know, that kind of metal knocking sound is very regular." ”

Next, in a daze, Zhu Beichen seemed to hear the sound of knocking, and saw the busy figures of Qijian and the fat man through the gap in his eyes. His consciousness was very unclear, and he couldn't see what the two of them were doing, only that they were busy in front of a white wall.

After another unknown amount of time, he seemed to hear the familiar voice of the fat man: "Damn, it's finally done, it turns out to be here." They must have found the exit of the courtyard, Zhu Beichen sat up tiredly holding on to the floor, his throat was still hot, and the scene in front of him gradually became clear. It turned out that they entered the house and dismantled the jade furniture in the house, used a long strip of jade as a hammer, and knocked on the wall where Zhu Beichen had heard the sound.

"Awake?" Hearing the sound made by Zhu Beichen, Qijian turned around and wiped the beads of sweat on his forehead and asked.

The fat man showed the tools in his hand, pointing to the crack in the courtyard wall, which had been smashed from a small piece to a large hole. The hardness of the wall is not inferior to the reinforced concrete, but they don't know that in the more than three hours that Zhu Beichen was asleep, they didn't dare to slack off for a moment to have this little achievement.