The first to enter the pit were some microrobots. Most of these miniature robots are five centimeters long and resemble six-legged spiders. Under this size, the robot not only retains reconnaissance capabilities, but also has a certain degree of information processing capabilities.

At the same time, it is a kind of thread-like robot. This kind of robot is very reminiscent of myriapod subphylums such as horses and centipedes. This particular robot is actually a data cable, and the periphery of the data cable is wrapped with electronic power fibers - this is a subordinate product of high-grade artificial muscle fibers, which is rarely used on the body of a warrior, but it is enough for civilian use or non-combat props. On the outside, there are pairs of mechanical feet. It is 1,000 meters long, and has a signal transmitter and receiver at the head and tail to find its way and maintain smooth communication underground.

Of course, although it is a "non-combat device", electronic power fibers can also provide considerable power. The radius of this thing is only a few centimeters, but its strength is much higher than that of things like "pythons" and "forest snakes" in the old generation. It is also possible that the warrior will be stumped by this data cable, or even directly entangled.

And the warriors have also updated their equipment. Now, the Rangers' height has been reduced from more than two meters to less than one meter six, and their whole body looks more stocky. Some of the warriors also wore arachnoid prostheses that were more suitable for the cave environment. Their radar components were also uniformly replaced with narrow-wave sonar – just like bats.

These things, along with those drones that preceded them, work together to form a formidable reconnaissance network.

This helps them identify enemies in the unknown darkness.

Three Chase Ranger were the first to enter. And C. Shivaji-21 followed.

But soon, C. Shivaji-21 ran into them again.

Several Rangers had reached the first fork in the road. They saw two tiny QR codes on top of the rock face. This QR code is engraved in a very inconspicuous place, and if you don't pay attention, you may really ignore the past.

"What is this?" C. Shivaji-21 asked.

The Chasing Ranger shook his head: "I haven't participated in the mission to encircle and suppress the Earth Drill Dragon before, so I'm not sure. I suspect it may be a way to mark the road, but there is no record of it. Maybe it's just this group of burrowing dragons. ”

These rangers are directly subordinate to King Agni, and they have been hunting down those well-known knights on Earth at a fixed point, and the attrition rate is also very high. Although the Ground Drilling Dragon is important, its own combat effectiveness is not strong, and it all depends on the specialization of the cave environment. Compared to the local rangers, this group of rangers directly under the king of Ajini did lack this kind of experience.

"Marking entities, not memorizing maps?" C. Shivaji-21 thought, "That's not very smart. Although it is effective to avoid digging up when being interrogated, it will expose the symbol system to the enemy and give them a chance to decipher it. It's kind of stupid. ”

While speaking, three groups of drones have already rushed out at different forks in the road.

Moments later, they got the information.

"'The road in the middle and to the right doesn't work,' 'There's a mine on the right road'—presumably an electromagnetic pulse weapon, and then 'the road on the left can go down.'" C. Shivaji-21 said, "Write these two symbols down." These two symbols must be able to represent the above information in some form. The power of supercomputing can be invoked remotely to decipher. If you encounter a similar code in the future, you should also deal with it in the same form. ”

…………………………………………………………………………………………

The old man and Scott walked down. Scott leaned against the wall with trepidation.

Just now, the earth shook and the mountains shook. Scott felt like he might be buried, and he was terrified.

On the contrary, the old man was comforting him: "This is just the movement of space-based weapons." They probably want to guess the general information of our cave based on seismic waves. We all know that after every seismic wave, we must be prepared to transfer and block, and if necessary, we must draw up a list of priority transfers. ”

Scott said: "Understandable...... Does this happen often, though? The asylum is so extravagant. ”

"Just throw out the garbage." The old man sighed, "My parents told me that at the end of the old world, mankind enjoyed supreme glory. The shadows of the crowd appeared in every corner of the planet and even poured into orbit. Garbage often falls into designated desert areas in the form of 'shooting stars'......"

Scott was stunned: "Why?" ”

"At that time, garbage was garbage, not like it is now, and it was used as a weapon." The old man shrugged. His head and body are particularly obvious when he compares this movement. The old man continued, "At that time, everyone needed a clean outer space......

"The End of the Old World......"

"Before the chivalrous secret war." The old man sighed: "Now everyone is more concerned about the battle of sublimation. But for people my age, secret wars and even earlier history are just as important. My parents were nostalgic for the time when we were like one family. ”

Scott sighed: "I don't know where to learn about this history. ”

"Young man, if you don't think I'm an old man, I can talk to you while walking." The old man turned and moved on, "But we still have to run." ”

The two ran for a few minutes. Suddenly, the entire corridor shook again. A few rocks fell. Steck clung to the wall like a frightened bird: "What's wrong?" ”

The old man stopped, looked up, and said in a distracted manner: "I don't know how many eagle dogs were killed this time." ”

"What?"

"Judging by the feeling of the shock, it should be our mines." The old man said, "I hope it's not a drone." ”

……………………………………………………………………

C. Shivaji-21's breathing lamp flashed red, visibly furious.

He felt as if he had been put on a standing.

Those QR codes do point to some kind of symbol, some kind of logical system.

But the symbology doesn't seem to have a direct connection to the authentic environment.

Those earth-drilling dragons seem to have carved "bright moonlight in front of the bed", "suspected frost on the ground", "looking up at the bright moon" and "bowing their heads and thinking of their hometown" on the wall. Let the master of internal strength judge that the supercomputer analyzes it with semiotics, and it is easy to come to the conclusion: "This is a symbol system with rules". But the law of this symbology has nothing to do with "which side of the cave is there no bomb".

You have to look for connections in the literal sense of the word, and then choose your path according to that connection......

Nine times out of ten, it will be like this.

These QR code symbols are as if they are used to trick them into computing resources.

The squad consumes a lot of computing resources and gets the wrong results.

And just now, this "wrong result" led to the attrition of the squad.

A cold-blooded ranger is buried in a collapse after touching a landmine, and is hopeless.

Squads of Protectors would not dare to use high-powered explosives. They were afraid that they would cause a series of collapses and bury themselves.

But the Driller knows where to blow up and what not to blow.

There must be experts in these drillers who have studied geophysics and have an in-depth knowledge of the local rock formations.

The next step may be frightening.

"Brush up on some cleverness." C. Shivaji-21 said, "Get all the drones out there!" ”

This command was quickly relayed to the ground by the wired system. The remaining rangers did not hesitate to send all the remaining drones into the cave.

The original purpose of the Drill Dragon's work underground was for mining.

The veins follow the path of the veins randomly, and the Driller will follow those veins with radioactive elements to build passages.

However, the course of the veins is not too irregular.

Even in order to confuse the enemy, the Driller will deliberately make some forks in the road.

But forks in the road are also limited.

Ignoring "mining" in order to "build a labyrinth" is putting the cart before the horse.

Under the brute force of the asylum victims, more and more pathways are exposed.

A three-dimensional map quickly appeared in C. Shivaji-21's mind. The drones are still adding details to this picture.

Then, he finally heard the voice he had dreamed of.

Sporadic firefights.

This group of Drillers has not yet completely evacuated.

………………………………………………………………

Rust lay on the ground. His body is covered with a layer of soundproofing, and the soundproofing layer is affixed to the shards of ore.

When he heard the sound of the drone rustling, Ah Rust lay on the ground and stopped most of his skills. As a "deep earth" driller, Ah Rust has not been on the ground a few times, but he is very familiar with the sounds that may occur in the cave.

After entering a state of emergency, as soon as the "unaccustomed" voice appears, he will lie dormant like this.

Soon, he saw small drones. Ah Rust is doing the valuation in his heart. He didn't know how much it cost, but from the caster's point of view, it should be a little more expensive than the prosthetic body used by ordinary people.

- That's a lot.

Looking at the drones that walked by like ant colonies, Ah Ru thought to himself that if he had one of them, he could go and change to a spare prosthetic.

Only shallow soil can have a regular humanoid alternate prosthesis, and after gaining leadership of the underground community, the shallow soil person must also surrender the alternate prosthesis and no longer go to the surface.

As a deep soil, Rust has only been to the ground once. It was his master who borrowed the prosthesis of his shallow soil companion and took him up.

Master told Ah Ru to always remember what it was like above—the irrationality above, and the beauty of the sun.

Master told Ah Ru to remember that everyone must be allowed to live in the sun reasonably.

But Ah Ru thinks a lot about it. He had been weighing on a spare prosthesis.

- If I had one of them......

Rust watched as the scout droids walked by, watched the wireworms walk by, and then saw a life-chasing ranger.

He jerked to his feet and hugged the ranger.

It's like a giant bear hugging a human.

- If I had such a prosthetic body......

Then there are gunshots, electric shocks, and blunt instruments.