"Woo!~~~"

Through the hexagonal double glazing, a loud and long roar came in. Pen, fun, and www.biquge.info

The thick stone bars and standard steel skeleton are like floating by invisible big hands, and they continue to fly into the underground passage where the cave walls are tamped and reinforced by earth-based spells.

"Can we go down?"

Hitamayasi looked at the passage that had just been dug again, the stone steps were paved down, and the walls of the cave were supported by steel structures, and just one Xuanyu Huangxing could withstand countless labors.

If it weren't for this, Qi Fei and Lin Mo would not have chosen to do such a thorough and meticulous underpass project.

"Okay! Be careful, if it's convenient, help me get rid of all the dangerous creatures I come across. ”

Lin Mo nodded, officially fulfilling his promise and letting the three gold-based dragons enter the underground world through the passage and start their journey of seeking revenge.

The golden dragon clan is really a dragon species that holds grudges, and Hitamayas beat the whole clan, defeated all the opposing voices, and forcibly ascended to the position of the patriarch Not long after, he launched a revenge operation.

In return for digging and clearing the passage, Lin Mo asked the gold coin to hand over some of the technology trees brought back from the earth's technological civilization to the three gold-based dragons in the form of "tinder" as a security guarantee after going deep into the underground world.

"Thank you for the gift, I love it!

The female gold-based dragon Hitamayasi nodded, and the top of her head, neck, limbs, dragon wings, lower abdomen, back, and tail lit up with palm-sized white light, and her learning progress was very fast, and she had completely mastered the principle of electric light evolution.

Whether it is an ordinary light source or a laser, according to the level of science and technology on the earth, it can only be regarded as a superficial technology at the level of primary school students (technology born fifty years ago by the earth's civilization), and the biggest technical obstacle is mainly in the application of materials, for the golden dragon clan. Such difficulty simply does not exist.

The evolved SEG unit in the body continuously provided a steady current, causing the incandescent light on the three-headed golden dragon to illuminate the passage with a diameter of about twenty meters, and the three blazing pillars of light shot straight into the depths, and after a while, their figures quickly disappeared into the channel.

Knock!~~Knock!~~Knock......

Lin Mo's body suddenly made a strange muffled sound like a drumbeat.

The sonic detection system is rapidly building a three-dimensional channel geological model through echoes on the transparent mask display screen on the inside of the "Dragon General" tactical helmet.

Hitamayas was only destroying potentially dangerous creatures, not just exploring, so he needed to get everything in place.

The stone and steel were still being transported into the passage, under the control of the powerful spiritual power of Xuanyu Huangxing Raven. The steps and support frames were quickly constructed, and although there was some interference with the acoustic wave detection, it did not affect the final detection result.

"There are still hollow structures at a maximum depth of fifteen kilometers, and there should be an eighty percent chance that this passage will be connected to the underground world!"

Standing at the entrance of the passage, Lin Mo raised his head and waved his hand to Mo Dai, Qi Fei and Tenya in the observation room on the second floor not far away, and through the ubiquitous wifi environment inside the steel building, his voice easily reached the ears of the three young women.

The hall at the entrance of the passage is located in the center of the steel building, reaching a height of four floors, and the room where the passage can be seen is in the protrusion on the inner side of the ring. In the future, it will become an important place to assume command and control functions.

In the room with a great view, six large 42-inch screens were showing different messages transmitted back by the "Dragon General" tactical armor, and one of them was impressively showing the internal model of the passage that had just been detected, although it was only a part of it. But it's already amazing.

"Lord Morin, you must be careful, and if you encounter danger, you must withdraw immediately!"

Even if there are three gold-based dragons fighting the front station. Her Royal Highness Princess Moddie, the eldest princess, is still concerned about the safety of this dragon knight.

With the addition of gold, four golden dragons and a dragon knight perform the operation of connecting the underground world to the surface world. Such a luxurious lineup is an unprecedented amount of money.

"Don't be reluctant! It's a trivial matter if you can't make money, don't put your life on the line!"

In Qi Fei's opinion, this stupid and stupid wood is the greatest wealth she has in her life, and she is also mentally prepared to finally abandon this passage, and the slight loss of property is not worth mentioning compared to Lin Mo's safety.

However, the unexpected assistance of the three-headed golden dragon made her more confident.

"Gold! It's our turn to go down! Hitamayas: They seem to be going well. ”

Lin Mo touched the space-based alchemy memory full of materials on his right wrist and greeted the gold-based dragon on standby.

This is only a preliminary exploration, and there are three gold-based dragons who have taken the initiative to "wade through thunder" in front, and the likelihood of him encountering danger is very low.

"Uncle Long has lost a lot today, you must compensate me well when you turn around!"

Reluctantly gave three "tinder", the golden dragon grunted, and more than ten points of light lit up on its body, and the lighting source it evolved was more advanced than the incandescent bulbs of Hitamayas, and the power consumption of semiconductor light-emitting technology was lower and the brightness was higher.

"Isn't it just some coins, you will be famous for it, you didn't eat less at the beginning, and it's nothing to take out a little bit, and now you still need to worry about hunger? Don't tell me those unproductive words!"

Lin Mo shook his head, this foodie was pretending again.

Although the amount of gold contained in each "tinder" is only the size of a matchbox, if it is used to evolve semiconductor components, it is enough to easily arm an adult metal dragon, and the amount of gold required by an ordinary CPU is only the size of an ordinary grain of sand at the nano process level.

"Stingy!"

The country is easy to change, and the nature is difficult to move, and the gold dragon gold coin angrily burrowed into the mouth of the passage.

"I still have those metals that I came back from the barbarian territory, as long as I connect to the underground world, maybe I can taste more delicious rare metals, where the mineral resources are more abundant, maybe it won't be long before you will have a greasy taste for Xuangang and Mithril, just like now, if you eat black iron, most of them will not be able to eat it, right?"

Regarding the bad temper of the gold coin, Lin Mo, who was in control, said a few words casually. whetted the appetite of this foodie.

"Bah, don't mention black iron to Uncle Long, is that scumbag for dragons? ”

It is easy to enter luxury, and it is difficult to enter simplicity from luxury, and the gold dragon that is accustomed to eating high-end metals will let it gnaw on those poor and inferior iron materials, I am afraid that I will even have the heart to die, and I have long forgotten how I was satisfied with those black iron as rations.

Now, if you force it to take the black iron general, I'm afraid that I'd rather break up my dragon knight and fight together.

I can endure anything else. I can't bear to eat alone.

"Work hard, work hard, get more for more work, no food if you don't work!"

Lin Mo laughed, and casually threw out two sets of huge wire spools more than one person high and landed on the back of the golden dragon, pulling the finger-thick thread while going to the left cave wall and the top of the cave, fixing the two thick wires of different colors through the pre-designed fixing module.

The black wire of the sleeve laid on the roof of the cave is a three-core wire, which leads to a screw lampholder every five steps through the power connection module, and a 3-watt LED bulb the size of an egg is screwed on.

The lights are dim though. It is enough to illuminate this deepening passage.

The other white wire is an eight-core shielded Super 6 wire, which is used to establish a physical communication connection, and uses the same natural superconducting material as the power supply line, but it is a composite core that is mechanically twisted after being re-wired. The diameter and strength are much larger.

As a long-distance digital communication carrier, optical fiber was originally a very suitable choice, but compared with superconducting wire cores, it immediately became useless.

Optical fiber has a low signal loss rate. After all, it is not a superconductor, and the connection requirements are high, and the relay equipment is also more complex. Where there is a crystal head, it is as simple as plugging in a wireless relay switch.

The light socket is a five-step one, and the super six data line node is one for 1 kilometer, which is not only a wireless relay switch, but also a wifi hotspot, which can just realize seamless signal docking.

In addition, there is a high-definition camera for 5 kilometers, which can monitor the situation in the channel at any time.

As Lin Mo and the gold coin continued to go deeper, the underground passage was no longer dark, but gradually filled with light.

"Now 6 kilometers above the ground, 31 kilometers in passage, 70% air humidity, normal oxygen content, if I am not mistaken, I and the gold coin should be able to reach the underground world. ”

Through a wireless relay switch that had just been activated, Lin Mo's voice was clearly transmitted to the room on the second floor of the steel and glass curtain wall on the surface.

Along the way, he encountered seventeen forked passages, as well as a natural stone hall of about 3,000 square meters, which was naturally formed for an unknown number of years, very dry, and without any traces of animals and plants, which could be used as a buffer and rest space.

"Did you encounter any creatures?"

Qi Fei and the others were already seated, their eyes fixed on the display screens arranged in two rows, the first screen constantly connected to the footage captured by the new camera, the second screen displayed the channel model that was constantly being accurately improved, the third screen was constantly refreshing the air and depth data, the fourth screen monitored the voltage and network environment, the fifth screen was in sync with the optical camera of the "Dragon General" tactical helmet, and the sixth screen was still black on standby.

"No, there are only some fungi and glowing mosses, no large creatures, the demonic beasts that escaped in the beginning should have left, I didn't see their corpses, Hitamayas they are still advancing, the paw prints on the ground are very clear, Raven's spiritual power can no longer be deeper, I suggest that the five Ferrero monsters stationed in the tunnel of the Ice Rock Mountain Range be transferred over to help strengthen the passage, and the people who come behind should be careful, don't step on the wires and network cables and other equipment I left on the ground."

Lin Mo stood on the back of the golden dragon and continued to throw out two different colored cables, black and white, to the edge of the passage.

"Yes! I'll arrange it now!"

The eldest princess of the regent, Mo Dai, nodded, the entire territory of Portland has been occupied by the Slans, and the tunnel through the Ice Rock Mountain no longer needs so many guard forces, but can borrow the power of the five demon beasts to further build this passage to the underground world.

"Squeak!~"

Suddenly, there was a roar from the depths of the passage.

"What is the voice? Do you hear that?"

In the room on the ground, Qi Fei stood up and glanced at each other with Moddy and Tenya.

"I heard it too!"

The eldest princess of the regent, Mo Dai, slowly stood at the starting point, nodded vigorously, and her expression was very solemn.

"Me too!" Tenya followed closely to confirm this.

The sudden eerie sound came from the six displays hanging from the stainless steel frame, and if I guessed correctly, it should have been the sound collected by the "Dragon General" tactical armor, which was transmitted to the ground through network cables and wireless relay switches.

"Wood, isn't there something going on down there!"

Qi Fei, who had been worried about Lin Mo's safety, had just put his mind at ease, but he didn't expect an accident to appear.

"It seems that yes, listening to the movement should be far away, but there is nothing to worry about, the combat power of the three-headed golden dragon is enough to sweep away all threats, even if they can't be defeated, they can escape, at least I can escape first. ”

Lin Mo didn't intend to stop the gold coin, but chose to continue to go deeper into the wiring.

After about 10 kilometers of continuous walking, the passage becomes a very vast space, with stalagmites and stone pillars, and the terrain is very peculiar.

Through another sonic sound, the horizontal area of this space is at least a dozen square kilometers, and there is a circular lake in the center, which seems to be a small and almost closed world.

The closer you get to the water source, you can see more and more fluorescent plants endemic to the underworld, such as fungi, mosses and lichens, as well as low and weak grass plants, where some arthropod insects and molluscs live and reproduce.

Lin Mo didn't see Hitamayas or the other two gold-based dragons, but he found the corpses of two crustal creatures near the mouth of another passage on the other side of the lake.

Although some of them were fragmented and miserable, they could still be distinguished as Demon Beast Blue Blood Spirit.

"Are they?!"

Lin Mo was stunned, these two demonic beasts whose bodies were almost torn apart turned out to be his old acquaintances.

On the way back to the imperial capital, he temporarily took over the commission of Baron Taiman, the lord of Yangshui City, to destroy the demonic beasts that ran up from the underground world to plague the place.

This space may be their territory, but they are unlucky enough to encounter three gold-based dragons who specialize in all kinds of disobedience.

Hitamayas kept her promise and killed the two hidden dangers for Lin Mo.

"It's a Warcraft?"

Qi Fei stared at the fifth screen and exclaimed, what Lin Mo saw, she could see as well as the others.

For the three young women, the shot does look a little scary.

- (To be continued.) )