"Hello tourists, there is Yanshi Mountain ahead. ”

The beautiful female tour guide transmits the sweet voice to the ears of every visitor through a wireless connection.

"Why is it called Yanshi Mountain, it is because the ruins of mechanical civilization have been found here. Yanshi is the first mechanic to make robots in ancient times......"

The female tour guide pointed to Yanshi Mountain outside the car window and vigorously introduced: "Yanshi Mountain is three thousand meters high, there is no grass on the mountain, and it looks like an iron mountain from a distance." Therefore, it is also called the Iron Mountain. The ruins of the ancient mechanical civilization are inside Yanshi Mountain, and the building structure inside is very complex, like a labyrinth. ”

The female tour guide especially emphasized: "Because of the special structure of Yanshi Mountain, it strongly interferes with wireless communication. Everyone must follow the planned route to avoid getting lost. Every year, people go missing from the site. Exploring the ruins of ancient civilizations is fun, but there's no need to risk it......"

Lan Tianshou and Bai Yunfeng listened obediently, if it weren't for Gao Xuan, they would have been teasing the female tour guide a long time ago.

Now, they don't have the guts. Besides, the female tour guide frequently looked at Xingxing, and she couldn't see anyone else in her eyes.

Including the other women in the bus, they always tried their best to see Gao Xuan. Even those who have a male companion are difficult for them to be curious and like.

Gao Xuan was wearing sunglasses, and no one could see that he had his eyes closed. I just think this boy is too handsome.

For ordinary people, Gao Xuan's handsome is too dazzling. I didn't dare to look at it, but I couldn't help but look at it.

This is true not only for women, but also for men.

Compared with the Yanshi monuments, everyone thinks that Gao Xuan is obviously better looking and has more ornamental value.

When a group of people entered the Yanshi Ruins, they all consciously followed Gao Xuan and them.

The female tour guide stood beside Gao Xuan enthusiastically and explained to him.

"As we all know, the most important metal for human beings today is titanium steel, which is improved from the metal formula obtained from the ruins of mechanical civilization...... The site of mechanical civilization is like a treasure and has great value for us humans......"

The internal structure of the Yanshi Ruins is like a huge industrial base that has been eliminated, with steel everywhere, some ancient machinery for unknown purposes, and some strange shapes and industrial rigor.

Many tourists can't understand anything, at most they just watch the excitement. Take a group photo in front of the weird machine, and you're done.

There are also some people who want to try their luck and look around in the hope of finding something good.

Every few years, tourists find special items left behind by ancient mechanical civilizations and make a fortune.

Although the odds are extremely low, everyone wants to try their luck. This is also the most attractive part of the Yanshi Ruins.

Now that virtual reality technology is very mature, the virtual world built by designers is much more exciting than the real world.

When it comes to on-the-ground travel, many people get bored.

This gimmick of the Yanshi Ruins is something that cannot be experienced in the virtual world.

After a slight turn, a group of people unanimously asked the tour guide to take them to the depths of the Yanshi ruins to try their luck.

Everyone took the ancient mechanical elevator to the bottom floor of the Yanshi Ruins. It's 20,000 meters above the ground. The old mechanical lifts glide very fast, with violent oscillations and undulations, which is like a thrilling roller coaster

When they got off the roller coaster, most of the tourists did not look very good.

Lan Tianshou and they were as if nothing had happened. This group of sword team members is weaker than Gao Xuan, but they are much stronger than ordinary people.

The tour guide's face was also a little ugly, but she was still very professional in guiding the tourists to adjust their bodies and put on their clothes.

At a depth of 20,000 meters underground, the temperature is more than minus 20 degrees, which is very cold. There are not many lighting sources arranged on this floor, and the environment is cold and dim, which is quite oppressive.

The female guide repeatedly told everyone not to run around. It is active in the illuminated area. Assemble in two hours.

After explaining this, the female tour guide found Gao Xuan diligently: "I am very familiar with this place, I will take you around." ”

She whispered mysteriously: "This place has been explored by the authorities countless times, and it is impossible to pick up the leak." Those machines are counterfeits.

"There's something interesting about this underneath, though. It's like a mechanical war puppet, all of which have been repaired later, and the playability is still quite high......"

The female tour guide also liked Gao Xuan's appearance too much, so she told the true situation of the Yanshi ruins.

"Thanks, we'll just walk around ourselves. ”

Gao Xuan declined the kindness of the female tour guide, he didn't need anyone to follow.

The female tour guide was very disappointed, and she couldn't follow Gao Xuan hard, so she could only tell softly: "Although the ruins have been excavated, this place is very big, and it is easy to get lost." Without a wireless signal, it is more difficult to contact. You've all signed a safety contract, and there will be no search and rescue help in case of an accident......"

"I know. Do not worry. ”

Gao Xuan smiled and waved his hand, and walked towards the depths of the passage with Yun Qingsheng.

The female guide looked at her with a worried face, but she should have said everything, and Gao Xuan insisted on going deep into her, but there was no way.

The entire underground ruins of Yanshi are very large, only one-tenth of them are open to public areas, and some modern supporting facilities have been made. For example, lighting, wireless signal transfer stations, etc.

The undeveloped ruins area has nothing but the empty ruins themselves. People get lost inside, and there is no one to search and rescue them, so it is easy to die inside.

The female guide waited for two hours, and everyone else returned, only Gao Xuan and Yun Qingshang did not come back.

This made the female guide even more worried, and she said to everyone: "There are still people who have not returned, let's wait." ”

The others knew that Gao Xuan had not returned, and a group of women all showed melancholy. There were a few men with obvious gloating expressions.

Growing up like Gao Xuan, there must be countless men who are envious and jealous.

Lan Tianshou, Bai Yunfeng and the others all sneered, how could Gao Xuan have an accident in such a place.

He said to the female guide: "Don't wait for Gao Xuan. He had told me in advance that he would stay at the ruins for a few days. ”

Gao Xuan did tell him beforehand, and asked him to go back and tell head coach Ji Xiuying.

Although the female tour guide wanted to continue to wait for Gao Xuan, Lan Tianshou said so, and she didn't want to delay everyone's time. I can only leave with a little regret and a little anxiety.

This will bring the cloud Qingshang that Gao Xuan has already carried to the depths of the ruins.

There are no lights and there are no modern equipment. Only endless darkness and cold.

The metal walls and ground of the Yanshi ruins are full of traces of violent exploration.

It can be seen that the Yanshi ruins have been explored and excavated many times in the past thousands of years. The traces of the various devastations are old and new, with clear time gaps.

The Yanshi ruins are all metal structures, which have a very strong shielding effect on spiritual power.

Gao Xuan's spiritual power could not envelop the Yanshi relics. Especially in the deep layers, the heavy metal structure restricts the roaming of spiritual power.

Gao Xuan is very satisfied with this, he needs such an environment. Find a corner and hide for a few days, and no one will find him.

On the other hand, he had an inexplicable familiarity with the Yanshi Ruins. It should be because of the mechanical war cicadas.

"Perhaps, find something here......"

Gao Xuan followed that subtle sense of familiarity and wandered around the depths of the ruins.

He soon discovered the problem, the rooms in the deep core area of the ruins were unusual, each room was a standard cube, and the nine cubes on each floor were arranged in a nine-square grid.

Such a room has a total of three floors, forming a huge third-order Rubik's Cube.

The twenty-seven cube rooms were also badly damaged, and large holes were dug into the roof, four walls, and ground, which also allowed the twenty-seven rooms to be connected to each other.

Obviously, there are a lot of smart people, and they all see that there is something wrong with this huge Rubik's Cube.

The only difference is the spherical center console on the wall.

The basketball-sized iron ball is engraved with the strange words of mechanical civilization, and half of the iron ball is inlaid on the wall, and one is exposed. Adjust the iron ball to align the text on it to the center point.

There are a total of 96 characters and 27 rooms on the iron ball, which can be combined into a single password by adjusting them in different sequences.

Gao Xuan figured out the structure of the cube room and immediately understood how to use the cube.

The six-winged cicada let out a clear sound, and a complex set of passwords immediately appeared in his mind.

Gao Xuan made a simple calculation, ninety-six characters and twenty-seven rooms were randomly combined in order, and this permutation and combination number was very terrifying. No wonder no one has been able to crack it for thousands of years.

Without the memories left by the mechanical cicada, no matter how strong his mental strength was, he would not be able to decipher the code of the cube room.

Gao Xuan entered the room one by one in order to lock the password. In some rooms, the ball-shaped combination locks were broken, and some of the balls were even removed.

Fortunately, he can leave a spiritual power imprint through the mechanical warcicada, replacing the iron orbular cipher.

In fact, the most important thing is not the iron ball combination lock, but the imprint of mental power left when unlocked. It must be in line with the frequency of spiritual fluctuations established by the mechanical civilization.

This design alone prevents other civilizations from cracking the cube by exhaustive methods.

Gao Xuan was very curious about this, the mechanical civilization had designed such complex protection measures, what would be inside the cube?

He was also a little worried, would the destructive exploration of the cube by humans destroy the secrets of the cube?

The passwords of all the rooms were correct, and the depths of the source force sea that Gao Xuan sensed suddenly shook. It's like there's a behemoth coming out of the depths of the Source Power Sea.

After waiting for more than ten seconds, the cube room made a rumbling vibration sound.

The voice was low, thick and sluggish, like a slow-moving old machine.

The sound of kalakala stumbled, and it seemed like it could stop at any moment.

Such a violent concussion caused the entire Yanshi ruins to shake violently. The people in the Yanshi ruins thought that there was an earthquake, and many people screamed in fright and ran around in panic.

The female tour guide was still there, and they were all frightened before they boarded the car. Because the whole Yanshi Mountain is shaking.

Lan Tianshou, Bai Yunfeng and the others were also full of uneasiness, not knowing what was going on.

At this moment, Jin Guangshan, who was in the Yanshi Ruins, first looked puzzled, and then realized that the changes were coming from the depths of the ruins. This is clearly an important mechanism within the Yanshi Ruins that has been activated!

Jin Guangshan originally chased Gao Xuan over, and he wanted to find an opportunity to solve Gao Xuan, but he didn't expect to encounter this kind of thing. He couldn't help but rejoice in his heart: "There is such a good thing!"

(There is only one change today~)