The Ark Project recorded the location, structure and activation method of the entire Ark, and when Tang Hao carefully turned over the pages one by one, an idea sprouted in his heart.

"Adjutant, you said that the underground world we were in before should be inside the Ark, right?"

The base intelligence lieutenant replied, "This machine thinks that is possible. ”

"The multi-storey world underground, according to the current inference, is likely to be a multi-level cabin."

"And those core hubs that connect the worlds of all levels should also be emergency passages within the ark."

Tang Hao nodded and said, "That's right, I feel more and more that we are teleported from the ark now. ”

"By the way, I don't know if the teleportation array of the 'Divine Sleep Place' can be used in both directions, we must go back to the ark and restart this doomsday ship."

He calmed down for a while and said, "Forget it, let's do what is in front of us first, I'll inform Catherine, what she saw today, not a word can be revealed." ”

……

Plans to restart the Ark have been put on hold for the time being, and now the focus of the "Journey to Underworld" is on repairing the planet Dyson Sphere.

Restoring the maintenance system of the planetary Dyson sphere requires a variety of materials, and it is not enough to rely on the inventory of the "Divine Sleep" base and the planetary control center.

Therefore, the "Journey to the Underworld" discharged ten geological teams in a row and began to frantically search for various ore veins in the surrounding environment.

"You mean, there's magnetic iron ore?" April held his chin and thought for a moment and said, "We probably don't have one in Hobruns, but I heard that in the east, those Gaians have dug up iron ore with natural magnetism. ”

Fran frowned, and after returning to the "Divine Sleep" base with the transport, she immediately approached Aprill in the embassy and asked her about the various mineral deposits.

Magnetite, generally accompanied by titanium magnetite, titanium is one of the more important materials required, must find a way.

"Did Hoblens have any dealings with the Gaians?" Fran asked.

April thought for a moment and said, "We have basically no contact with the Gaians across the Tiriss, except for some communication with the Permafrost. ”

"Permafrost ......" These stones are the favorite of the Gaians, and Fran already has an idea in her mind.

The next day, in the territory of the barbarians, three "Cobra" levitating assault vehicles flew over the ice field.

The team is led by Britz, who are tasked with finding the Permafrost, which will be a bargaining chip with the Gaiaians.

"Boss, why are they so generous this time, all three cars are allocated to us for use, isn't it only the core members who can have such treatment before." The little brother who had been following him asked.

Britz replied: "What is this, the Arctic war has opened up all the situation, I told you a long time ago, as long as you work hard honestly, our future life will be beautiful." ”

"Boss, having said that, our burden is also very heavy, what is the difference between looking for a frozen stone in this ice and snow and looking for a needle in a haystack." The little brother said with some complaints.

"Oh, you guys, do you think good days will fall from the sky?" Britz snorted: "Our focus at this stage is to fix the Dyson ball above our heads, and this task is very urgent. ”

"Didn't you see the other brothers swarming out to find the mines? Our task is even more important, titanium is an important metal for repairing Dyson spheres, and we must get this mineral from the Gaians, this is the Lord's death command! ”

The convoy shuttled back and forth over the ice field, and finally, they found the clues provided to them by the adjutant.

The permafrost stone is always absorbing the heat around it, so countless condensed water vapors eventually formed a towering ice crystal column.

This kind of ice crystal pillar, which is known at a glance to be not a normal formation, has become a sign of the existence of permafrost, and after some searching, the convoy came to a "jungle" composed of ice crystal pillars.

The ice crystals here grow like weeds, covering almost the entire ice field.

Dressed in combat armor, the team members stepped out of their vehicles and began to search for their core, the Permafrost, in the ice crystal column.

Everyone's luck is very good, basically under every ice crystal pillar, you can find a permafrost stone.

Holding these sparkling blue gems, even the surface of the armor was frozen with a layer of hoarfrost.

After collecting a large pile of permafrost, the convoy happily returned home, and their next task was to use these permafrost stones to pry open the mouths of the Gaians and find the location of ilmenite.

……

Tang Hao, who returned to a state of immobility, had a bit of a fire in the past two days.

Susie was already doing her best to repair the stand-in power armor, but the damage caused by the overload was so severe that her job was almost like rebuilding the stand-in power armor.

"Adjutant, report the situation!" Tang Hao, who was sitting on the stone chair, was a little lazy now, which was also a manifestation of the difficulty of making money from luxury.

"Report to Your Excellency Commander, our geological team has now discovered three rare earth mines, and the space engineering vehicle is already on its way."

"Thanks to the rail network throughout Hoblens, machines and materials can be delivered to the mines in just one day, and within a week, the new ore refinery can start production."

This is good news, Tang Hao nodded and said, "There seems to be news about the permafrost stone over there in Britz?" ”

The adjutant replied, "Yes, they brought back a total of about five hundred kilograms of permafrost, which must be a lot of wealth for the Gaians. ”

"Good!" Tang Hao said: "Let them rest for a day, and tomorrow they will set off to the east to go to the territory of the Gaians, and they must find out the specific location of ilmenite." ”

"In addition, leave a few space engineering vehicles at the base for preparation, as long as you find ilmenite, immediately build a railroad to it."

"Yes, Your Excellency," the adjutant paused and asked, "Your Excellency, when is the matter of going to the synchronous orbit and probing the maintenance system of the Dyson Sphere on the agenda?" ”

Tang Hao looked at Susie, who was still busy on the screen: "When Susie repairs my stand-in power armor, I will go to the synchronous orbit with her." ”

"Judging from this attack on the planetary control center, Susie's role is still irreplaceable, if we had taken her with us, we would definitely have been able to deal with that 'Luna' a lot easier."

"There is one more thing," Tang Hao adjusted the camera back to the "Divine Sleep" base: "Regarding the history of the 'Uriel' star, you can sort it out and hand it to Mamba, and let him explain it to the people in the whole base." ”

"Forgetting history means betrayal, and this lesson must not be missing."