When Han Lang returned to the Antarctic base, he received an unprecedented warm welcome.

"Oh, Han Lang? You are finally back!"

"I miss you so much brother, just come back."

"Thanks to you this time, we can preserve this precious ruin, and we must work hard in the future!"

Han Lang smiled and greeted the people he met along the way. In fact, many of these people Han Lang did not recognize them. After all, he has not been in the Antarctic base for a long time, and has always been training. He has never participated in the daily affairs of the base. Those friends who seem to be extremely intimate with Han Lang are actually just meeting him one or two times.

But this does not prevent everyone from being fond of Han Lang. The hard-bodied Han Lang, who doesn’t know this title on Earth now. In everyone’s mind, Han Lang may not be the strongest combat power, nor the most exquisite martial arts, but the bravest and hardest!

When facing more than ten times the enemy, he still rushed forward without hesitation. He fought until the last moment and almost sacrificed his life. Han Lang's deeds seemed to everyone as a legend!

Due to the last incident, the safety level in the base has increased a lot. There are two special combat teams guarding the entrance to the ruins, with a number of up to twenty-two.

Han Lang looked at the silver alloy door and sighed. This was the place where he witnessed Richard and Freeman's death in battle. Now he is revisiting the old place, how can he not feel emotion?

Walking into this mysterious door, Han Lang finally came to the legendary prehistoric ruins. Unlike Han Lang imagined, there was no luxurious decoration or wonderful sculptures here, but it was more like a metal fortress, with a huge hall connecting countless alleyways.

Most tunnels are paved with steel rails. Electric energy transport rail trucks transport trucks of black ore and send them to a huge steel machine located on the side of the hall for grinding and screening. The black part of the ore is removed and transported by the track truck into the depths of the tunnel for landfill, leaving behind a bright yellow crystal.

The crystals are very small, like fine translucent sand. Workers are packing these crystals, and the collection volume is not large. The crystals collected from a truck of ore are only a few kilograms.

Han Lang looked at all this curiously, with walls made of steel, domes made of steel, steel lanes, walls and domes with murals depicting the complex galaxies in the universe, and it seems that prehistoric civilization is full of attachment to the starry sky.

Li Yu sighed and said with emotion: "This is the C-class ruins belonging to the earth. A prehistoric civilization mine can produce good quality Yanhuang crystal stones, which are the small yellow stones used as additives for the production of high-end alloys, and the price is as high as 500,000 star coins per ton."

"The current output of the mine is a little more than one ton per day. We will take these ores to the open market of the Galaxy. The federal government can have an input of 15 million star coins every month. As the progress of the project accelerates, the output will increase. If it can reach the daily output of three tons, it will be 45 million star coins per month."

"You know, the Earth Federation's revenue last year was only 50 million star coins."

Han Lang frowned and said, "I don't understand very well. Just developing a mine, so many brothers will die in battle?"

Li Yu looked at the deep alleyways and thrust his mouth, "Because there were once dark beasts."

Han Lang was stunned, not knowing what the dark beast Li Yu was referring to was.

"Come with me."

Li Yu took Han Lang into one of the lanes of the mine. The people working here were ordinary workers without superpowers. Seeing them sweating profusely, they must have known the importance of the mine to the earth, so they worked very hard to complete their tasks.

The expected revenue of 45 million star coins per month is actually just a drop in the bucket for the Earth with a population of 1.5 million. The equipment and medicines required by 150,000 superpowers will cost a lot of money, not to mention the formation of a fleet.

So far, there is only one air fortress-class cruiser on Earth. This ship was still ranked among the top ten in the Galaxy Conference because of Clark's outstanding performance.

But the size of the earth is also a country. A country only has one interstellar warship. It will be laughed at to death if it says it. It costs a lot of money to buy more warships and train ship-based personnel.

In addition, the Earth Federation also needs to import some advanced energy, machinery, training equipment, and federal diplomacy also needs to go around nearby countries. These require star coins, so the Earth is not a problem of poverty at present, but an extreme problem of poverty.

Han Lang followed Li Yu, and as they came to the depths of the alley, more traces of battle began to appear, and the claws on the wall were more than ten centimeters deep. If they were caught on the warrior, they would have died at that time.

Li Yu recalled and said: "Before the retreat of prehistoric higher civilizations, many mines, research institutes, and bases were closed, and a large number of dark beasts were left behind."

"Generally speaking, the higher the level of the ruins, the stronger the dark beasts left behind. The ruins above the level of B and above even have mechanisms set up by them. Therefore, it is not easy to clean up the places left by prehistoric civilization and use them for our own use."

"This mine is more likely to be opened to the C-level ruins, and it has caused heavy losses to the attacking brigade. With the current strength of the earth, if you develop more advanced ruins, you may not be able to do so."

Han Lang nodded slightly, thought about it in his heart, and asked curiously: "I don't know how to distinguish this C-level ruin and B-level ruins? In addition, I don't understand one thing. Since prehistoric high civilizations have withdrawn from the Milky Way, why are you doing such trouble? If you don't want to leave the ruins, just blow it up."

Li Yu explained: "Relic classification is a practice in the Milky Way. To determine the value and difficulty of the ruins, the lowest level is level D, there is no threat. C-level ruins are more dangerous, but they are not impossible to break. Going to a B-level ruins means huge risks. Only powerful countries in the Milky Way have the ability to develop B-level ruins alone. Only countries with low-level levels can barely develop them only if they seek help from powerful countries or form a coalition of multiple countries."

"As for the A-level ruins, it is unimaginable that even the strongest countries in the Milky Way join forces, they cannot completely open up the ruins. It is simply a forbidden area for humans, countless mechanisms, secret passages, and dark beasts."

"The purpose of the Galaxy Conference is actually to find capable young people across the Galaxy, and jointly develop several special A-level ruins, namely A-level ruins, Class A-level ruins, Class A-level ruins, Class A-level ruins, Class A-level ruins, Class A-level ruins, and Class A-level ruins," said Dr.

"These three A-level ruins are very special. There are restrictions at the entrance. Only young people under the age of thirty can enter them. Clark successfully opened up the A7 ruins that year, ranking ninth in the Galaxy, showing strong potential!"

"There is such a young warrior with great potential. Although some countries still propose to colonize the earth after the Galaxy Congress, they are rejected by the Galaxy Alliance. After all, in their opinion, a top genius like Clark has a bright future and may be helpful to the Galaxy Alliance in the future."

"It's a pity that after the Galaxy Conference, he sent the air fortress cruiser that he had awarded him back to Earth, but he didn't go home, and he didn't know where he went, and there was no news yet."

When it comes to Clark, Li Yu couldn't hide his sadness. Clark had practiced with seniors like Li Yu and Tallin, and was considered a master-apprentice relationship and had a deep relationship.

It's almost ten years. If Clark is still on Earth, the Earth Federation is not so useless, even those robbers are bullying.

After a pause, Li Yu continued: "As for why the ruins were loaded into the dark beast and had many mechanisms set up, it was because people from prehistoric civilizations thought they would return to the Milky Way one day, so they carefully sealed their important ruins."

"They still want to come back?" Han Lang said in confusion: "Then I don't understand even more. Relocation of the entire clan is not a joke. How much financial and material resources will be consumed? Since you are going back, why should the entire clan move away?"

Li Yudao: "Maybe they encountered some difficulties. In short, prehistoric civilization is the biggest mystery in the Milky Way. Generally speaking, a race relocates collectively because it is threatened, just like the Turks living in western China in history, who had to move to Europe due to the attacks of the Han Empire."

"There are countless examples like this. Judging from the current profits from the development of prehistoric relics, the intelligent creatures that humans lived in the Milky Way before had a very high level of civilization. Humans have only obtained a small part of the scientific and technological achievements of prehistoric civilization, which has benefited us infinitely. The warships that can cross the Star Sea and provide free energy to the world are all remnants of prehistoric civilization."

"In fact, no one knows what threat this powerful prehistoric civilization is to make them determined to relocate the entire clan to an unknown distance. But one thing is certain that the one that can cause the prehistoric civilization to completely leave the Milky Way must be a very dangerous enemy, and this dangerous enemy may still exist somewhere in the Milky Way, but it is still sleeping and has not awakened, and we don't understand it."

"In any case, the Milky Way is full of chaos and crisis. As a member of the human race in the Milky Way, our earth is too weak. Only when we become strong ourselves can we resist threats from the future and far away."

"What I can do is to do my best to develop relics. As long as the earth has an economic source, it can slowly accumulate strength. You have to find a way to enter the Galaxy Conference. I also believe you have such strength."

Han Lang focused his attention, "Don't worry, I will do my best. As far as I know, there seems to be a group of young soldiers who are specially trained at the headquarters. They should be able to advance to the main competition, right?"

Li Yu said with a serious expression: "It's hard to say, now they are in seclusion like you and have not participated in the second half of the fighting competition. By the way, you will soon see this group of geniuses, as well as Chen Chong and Monk. They are all coming this time to form the First Legion."

Han Lang was very happy when he thought of Chen Chong and the monk. Although they had not known each other for a long time, they had fought together, which was a great friendship.

In a blink of an eye, Han Lang and Li Yu had arrived at the end of the lane, and the rails were still being paved. The mine was about to start digging soon to provide valuable financial support to the earth.

Li Yu looked at the bloodstains left by the battle on the wall in a daze and said in a deep voice: "If the Galaxy Congress cannot break through, in order to avoid the earth becoming a colony of other countries, the only way is to force the B-level ruins to open up, so that we, the only superpowers on earth, will fight for the final effort."
Chapter completed!