Obviously, if Hestia hadn't accepted Hestia's kindness and followed Thrall and them on their way, then it would have been a lot of bad luck now. Thinking of this, Tianxuan was very glad that he had stayed away from the disaster, and at the same time felt very uncomfortable. There is no free lunch in the world, and others pay too much attention to themselves, which may only be of some use value in someone's eyes. But even so, Tianxuan was more grateful to Hestia, no matter what the purpose.

At this time, Tianxuan was already a little melancholy, and Hestia didn't talk to him for the time being. The flying carpet continued to drive, and the rocks on both sides moved backwards rapidly, which felt like a high-speed train.

I don't know how long later, the flying carpet suddenly shook violently, and everyone was shaken left and right. Except for the four well-trained berserkers who stabilized their bodies, the others, the girls, looked a little overwhelmed.

"Don't panic, everyone, there must be something wrong with the equipment." Hestia paused and continued to speak calmly, "We'll stop at the digging station ahead of us. ”

After Hestia finished speaking, the two berserkers sitting at the front began to fiddle with the instruments, and then the speed of the flying carpet began to slow down, and gradually a docking platform appeared in front of the left. When the flying carpet drove to the edge of the platform, it stopped, and then a large amount of air came out of the bottom of the flying carpet, and Tianxuan immediately felt as if there was a rush of air under his feet. However, this feeling did not last for a few seconds before the flying carpet panned to the platform, and the air flow slowly dissipated.

Once the carpet had stopped, the shields over their heads were unfastened and their seat belts were unfastened. Tianxuan stood up from his chair and looked at the main passage on the right, only to see that this winding passage resembled a subway passage in the city. However, the difference is that the passage is not a magnetic levitation, which is closed by fences on both sides, but a row of bamboo-like air vents, constantly spraying out a white mist of air, but the air flow in front of them is not as stable as the one they just came over, up and down.

"What are you looking at?" A familiar hand patted Tianxuan's shoulder, and when he looked back, he saw Hestia looking at him with a smile on the corner of his mouth.

Tianxuan touched his cheek with his finger and said, "That's the case, I see this passage to the subway in my world, but we are a maglev train, could it be that this is suspended by airflow?" ”

Hestia pursed her lips and said, "You're very observant." Indeed, this passage is to concentrate the heat emitted from the streamer layer everywhere, and then allow the ark you see to be suspended from the gravity of the center of the earth and fly close to the ground in zero gravity. ”

"Then why don't you use magnetic levitation instead of levitating with airflow, which is not as stable as magnetic levitation?" Tianxuan was a little puzzled.

"Well, that's it. First, hot gas is a unique product of the streamer layer, which is inexhaustible, and only needs to be drained without large-scale construction; Second, earthquakes are closely related to fluctuations in the magnetic field, and electromagnetic waves can lead to the instability of the geological state of the streamer. Hestia said and poked Tianxuan's forehead with her finger, "Got it?" ”

Tianxuan was poked a few times, and suddenly reacted and said embarrassedly: "Ah, I understand, I understand!" With that, he hurried off the platform, for his curiosity had delayed everyone's time, but Hestia immediately woke him up with his finger, so that he would not be complained about by others.

"Captain Hestia, what should we do next?" A berserker begs her for instructions.

"It's not busy, let's take our gear and gear and hike to the nearby supply station to see what the fault is." Hestia said calmly.

Next, Hestia led the group toward a large, black steel gate not far away. Coming to the gate, one of the berserkers pressed the button on the gate, and then a cross gap appeared in the middle of the gate, which was dozens of meters wide and nearly 10 meters high, and then the door gradually opened.

At this time, the four berserkers stood on both sides, fully guarded, and the atmosphere did not calm down until the doors were all opened. When the steel gate opened, a hand-dug and smooth mine opened up before them.

This well is about dozens of meters in diameter, and there are permanent lamps inlaid with the size of ping-pong balls in the walls on both sides of the walls and in the underground corridor, but the container of this kind of permanent lamp is not filled with liquid, like some kind of oil, and the flickering light of the wick is also several times stronger than that in the underground corridor, which may be the high-grade permanent lamp that can burn for 3,000 years in the mouth of Sal. Two of the berserkers went to explore the path first, and after making sure that there was no problem, Tianxuan and the others walked into the mine with confidence.

After entering, the structure inside is clear at a glance: there is an air inlet similar to a central air conditioner above the head. There are three openings in front of it, the largest should be the main inclined shaft, which is used to transport various mechanical equipment and ores; The medium opening, with elevator-like equipment, should be a passage for people to enter and exit; Another small hole is covered with dense pipes, presumably the shaft used to pump out the exhaust gas inside the mine, which should be the return air shaft.

Although the interior of the mine is illuminated by permanent lights, the vines and cobwebs that grow everywhere seem to have been abandoned for a long time. "It seems to have been abandoned for a long time!" Tianxuan said while touching his chin.

"Of course, it's been closed for more than a thousand years!" Hestia said.

"Oh? Deserted for more than a thousand years! Tianxuan felt that it was a pity that such a grand project was abandoned.

"This cave is the famous Priam Cave and is a paradise for treasure hunters. There are all kinds of high-purity ores all over the place. Hestia said.

After taking a few steps forward in the mine, Hestia pointed to a brown ore with cherry red stripes and said, "This is hematite, with a content of between 75% and 90% iron. "You must know that most of the iron ore developed so far contains a lot of impurities, and the hematite here is definitely rich in iron ore.

Tianxuan walked and looked, and suddenly found several pieces of ore that looked like a dog's head with a slight gold, so he stepped forward to touch it. "This is a dog's head gold, so named because it is shaped like a dog's head." In this way, Tianxuan learned a lot of rare ores, but the most special thing here is the triangular red ore, which Hestia said the Mayans called redstone.

It is said that this redstone is crushed into redstone powder, spread on the ground, and connected to metal conductors at both ends to generate a strong electric current, which can be used as an emergency power supply facility. Nature is truly full of wonders, and there are so many wonders that have been bred. Through this field investigation, Tianxuan has accumulated rich experience and laid a solid foundation for future geological attainments.

"Hestia, so many rich ores are really a treasure hunter's paradise, but why are they all deserted?" Tianxuan asked.

Hestia breathed a long sigh of relief and said with some emotion: "Yes, it is indeed a big treasure house, but due to uncontrolled excavation and mining, it has caused the instability of many foundations, and the phenomenon of collapse and magma diversion have become commonplace. In order to put an end to this insatiable greed, the wise people of the time recommended that the Priam Mine be permanently closed. Later, the excavation station was closed because mining was banned. Later, because the passage had no economic benefits, the huge maintenance cost was too large, so for more than a thousand years, this passage was only opened as a safe passage in an emergency, and each opening required five days of preparation, and only lasted about two days after opening. ”

I see, no wonder Sal and they can't pass through here, even so, Tianxuan's heart is still a little uncalm. With this in mind, Tianxuan continued to move forward with them, and after walking for about a few kilometers, the two berserkers in front of him ran back and told Hestia that the steady flow station that controlled the airflow of the channel was indeed out of order, but it seemed that it was quite difficult to deal with their expressions.

When they reached the Wenliu Station, Tianxuan saw that everything was covered with vegetation, especially the source of the supply equipment was cut off by several large trees. “Oh，No！” Tianxuan shouted with his hands over his head.

Hey, things are getting a little tricky now. Just when they were at a loss, Tianxuan's eyes lit up when he saw a lot of redstone and compression equipment around him, and it seemed that there was a way......

This article is from Reading Books and Novels