"In addition, we believe that this large underground rift is shrinking extremely slowly."
"Theoretically, matter is immortal, and certain components will be pulled out again after being eaten. But this large gap is indeed slowly shrinking."
"It's just that the amount of rock, soil, sand and gravel here is so large that most people can't notice it. Maybe it will disappear after tens of thousands or one hundred thousand years."
Everyone was chatting and walking, and a lot of gas odor was sprayed along the way, making the whole journey smelly.
This adventure went quite smoothly. We did not encounter a large number of Zerg troops. The Underground Alliance also conducted a detailed survey of the surrounding landforms.
It took everyone half a day to reach the surface easily.
Climbing up the cliff, bathing in the bright sunshine, and thinking back to the underground for more than a month, I felt like I was suddenly reborn.
Still...what a great time to pick mushrooms!
Because the altitude here is so high, the gray clouds and mist are directly under your feet.
And directly above the sky, it has almost reached the legendary "Gangfeng layer" where the airflow is extremely chaotic... According to the literature of the Greenland Civilization, after breaking through the atmosphere, the idealistic radiation from the outside world is extremely chaotic. Even a serious spacecraft,
There is no way to sustain life for a long time.
We must realize space technology and escape from this time and space in order to avoid the epochal disaster... But that is another higher-level technological route.
Looking down at the large crack, Lu Yuan seemed to be facing endless space and time, filled with fiery magma and thick darkness.
This great rift is hidden in the dark side of the world, filled with unspeakable chaos.
A terrifying thought suddenly occurred in his mind: "[Insects] seem to be born from the corpse of [Demon]... Could it be that there is a dead [Demon] here..."
This rift faces east and west, with a length of tens of thousands of kilometers and a width of thousands of kilometers. If it is really the corpse of a [demon]... it is really beyond imagination.
Moreover, "[Insects] are born from [Demon] corpses" is just Lu Yuan's conjecture, but the final truth cannot be verified.
Everyone climbed over the top of the mountain and began to descend continuously. After dozens of kilometers, they saw the "Frontline Investigation Fortress" built by humans.
A flag depicting the City in the Sky flutters in the wind. It is the flag symbolizing the Green City.
"Hey - we're back!"
It was indeed touching to return to a familiar outpost after more than a month.
People were checking their physical conditions in the safe house. When they saw the familiar people and objects, Lu Yuan's tense nerves suddenly relaxed, as if a heavy burden had been lifted off him.
The other human staff were in a similar situation, and all of them jumped on the ground or breathed a long sigh of relief.
Only the 48 members of the Underground Alliance were shaking their heads, very excited.
The bright sunlight is indeed a bit dazzling for the underground races, but they are not used to it.
But as long as you put on a pair of sunglasses, you can block the sun.
Niu Ba shouted loudly: "This fortress on the surface is so majestic!"
"Haha... I, Old Niu, have been carrying bricks a long time ago. Commander Lu, why don't you hire me to carry cement for you? I, Niu Ba, am the best warrior underground."
"Why don't you slowly move to the surface?" Lu Yuan asked, "With your technological strength, it's not difficult to build such a building, right?"
"Well, there are too many bottles and cans, so I can't bear to part with them." The main person in charge of the team, Oshima Steel, shook his head.
Although the underground environment is not very good, the advantage is that the resources are extremely abundant.
The Underground Alliance has basically completed the goal of Level 2 for everyone, which is Level 2 for tens of millions of people. It is 100 times more difficult than City in the Sky!
Go to the surface, where are the resources...
Lu Yuan said he could understand: "Alas, our Sky City travels all over the country just to obtain resources...you actually already have them."
"Come, please come this way. This is just an outpost, and the base camp in the rear is thousands of kilometers away."
Humans have built small airfields here.
The plane is specially built, has no windows in the cabin, and uses some special protective materials, so these underground people don't actually know the specific direction of human cities.
Its speed is much faster than the "Sky Fortress". It traveled 6,000 kilometers along the way and took almost 10 hours to reach the small Sky City.
There was a soft "boom" sound and the plane landed smoothly.
"Tsk--" The cabin door opened.
Compared with the majestic underground fissures, the Sky City is like a small, delicate stone, but it contains all the hopes of people.
After being away from home for more than a year, the city seems to have changed its appearance.
The foundation of the new city is basically completed, and the area has been expanded a lot.
The old city, the new city, the green mountains, and the coral island, these four areas combined can easily accommodate the daily life of a million-level population.
Of course, once the foundation is completed, it may not necessarily be habitable. Details such as decoration, water, electricity, and greening will take a long time. The expansion of the population will also take time.
A large artificial glass greenhouse was built above the stump of the poppy tree - this has been planned for a long time. This glass greenhouse can transmit sunlight and also has certain defensive properties.
That is to say, the huge tree stump can no longer be seen with the naked eye from the outside world, and the safety of the poppy tree has been fully guaranteed. In addition, there is an additional 2 square kilometers of military zone and external exchanges on the periphery.
area.
This "external exchange area" can conveniently receive some foreign guests and expose the secrets of Sky City as little as possible.
Accompanied by a burst of soft "Jasmine" music, a lot of high-level government officials have been looking forward to it!
There were also neatly arranged soldiers and hundreds of powered armors, all saluting.
Several red banners were hung on the rail trains: "Welcome the Underground Alliance to visit the green city and create a brilliant future together!"
Lu Yuan was the first to board the plane and let out a deep breath.
The scene in front of him made him feel a subtle emotion in his heart. Giving civilization to the years, giving life to the time, is the meaning of human life for this moment? The joy of returning home in rich clothes, is like this from time to time?
He saw the tearful "maid lady", the immortal giant turtle with its head raised, and the old cat hiding in the crowd.
There is also the evil, charming and arrogant old wolf, with his tongue hanging out and his tail wagging like an electric fan! This old guy who is full of legendary journeys is so close!
And...little mirage!
After not seeing each other for a year, the little mirage has grown up again, puffing up smoke and surrounding itself, as if it is a little shy.
But those sparkling eyes were as curious as ever - where have you, Lao Lu, been for so many days?
And...countless familiar people.
Under the quiet and turbulent mood, there is only one word to describe this feeling - solid!
It seemed like all of a sudden, everything was let go.
Lu Yuan cleared his throat and said softly: "Hello, friends! We are back, and no one is missing!"
"We successfully completed the frontline investigation mission and made new friends!"
"Let us express our most sincere welcome to the Underground Alliance's visit with warm applause!"
"Sound a salute!"
"Boom! Boom!"
Gun salute roars!
The applause was like a thunderstorm.
In such a grand reception ceremony, 48 representatives from 12 races of the Underground Alliance walked off the plane with glowing faces.
There was a red carpet on her feet, and there were human hostesses around her giving flowers.
This sense of ceremony is indeed sufficient - well, the Underground Alliance is a big financial backer of mankind, so it doesn't cost anything to give you some face!
The bull-headed chief grinned widely and said loudly: "Haha, you're welcome, you're too polite."
"Underground, we don't even dare to fire cannons. We are so cowardly that we will die."
"Hey, there is actually a turtle and a group of rat men there, staring at us!"
"They really have many races here! Accept us tauren as well, I can be your..."
"Be quiet! Don't talk nonsense!" Oshima Steel was anxious and quickly pressed a remote control button.
"Zhila!" Suddenly, high-voltage electricity was generated on the bracelets of these cows, which made them numb all over, trembling and speechless.
These are the three chapters of the agreement made in advance. If the Tauren want to be diplomats, they must bring electric shock devices to prevent them from talking nonsense!
The tauren was a little sad and almost shed bitter tears.
The representatives of other races were much more reliable. When they got off the plane, they secretly observed everything here.
"This is..."
"Cities that are commonly built in the outside world... can they really be levitated?"
The Sky City is divided into three floors: upper, middle and lower. There are many hollow designs in the middle. This is for lighting. At a certain time of the day, you can always get a period of sunshine.
Most residential buildings are built into the walls, which can provide good protection from disasters.
There are not many high-rise buildings, only 40 meters in height at most.
The number of glyphs... is really a lot!
There are also huge sewer projects, rail transit, industrial factories, energy systems, reservoirs and warehouses, defense systems...
I have to admit, the devil is in the details!
For example, once a sewer is clogged, the lives of all residents will be affected.
There is also the greening of the city. This city is really surrounded by green plants, and the lush vitality is so much that I am not used to it.
And these details can only be perfected in practice.
If they also want to build a city in the sky, there are so many things worth learning.
But what should I say about this knowledge... Human beings will not take the initiative to sell it. After all, it involves the secrets of civilization and cannot be sold.
Chapter completed!