Cao He's move is very poisonous!
Very vicious!
Sure enough, as Kong Xingyu expected, after closing the ventilation device above the underground fortress, Cao He immediately clicked on the screen to lock the upper part of the underground fortress!
To be precise, it is a blockade!
And it’s still self-imposed!
Once the self-blockade is turned on, although these bugs can enter the underground fortress after chewing off the shell of the metal passage entrance, they will not be able to enter the underground fortress!
And the most important point is that this blockade is one-way. Once the blockade is opened, it will not be able to be unlocked by the people in the underground fortress!
In this way, not only these bugs can't get in, but also the people in the underground fortress can't get out!
As for the means of blocking the underground fortress, it is actually very simple.
After dozens of layers of hard metal are blocked between the surface and the underground fortress, if the people in the underground fortress want to come out, they can only use violent means to continuously damage these layers of metal barriers. , and then you can get out of the underground fortress.
However, this method was the bottom-line method prepared by Kong Xingyu and others from the beginning. The self-blocking method would only be used when the underground fortress encountered the greatest crisis.
But now, Cao He used his two trump cards almost as soon as these iron-eating insects entered the underground fortress passage!
One trump card is poison gas attack, and the other trump card is self-blockade!
And the most important thing is that the earliest iron-eating insects that rushed in specialized in eating metal. In other words, the self-blocking technique may work well for other bugs, but for these iron-eating insects, it is very likely that It's meat buns beating dogs!
But at this moment, Kong Xingyu had already seen what Cao He was thinking, and naturally he would not interrupt his operation again.
Sure enough, as Kong Xingyu expected, after these iron-eating insects entered the passage, they found that layers of metal partitions suddenly appeared in front of them, and they immediately rushed down excitedly, wanting to gnaw on them. These hard metals!
But as soon as they flew above the metal level, they immediately noticed something was wrong!
Because there is already a large amount of poisonous gas here. Inhaling this poisonous gas, even if their appearance is extremely hard and not afraid of the poisonous gas, the organs inside the iron-eating worm's appearance still cannot withstand the attack of this poisonous gas!
Their high-speed flight and movement require them to maintain a high-frequency breathing state at all times. It is simply impossible for them to hold their breath like humans.
And the most terrible thing is that the ventilation device in this space was turned off by Cao He in advance, which caused the poisonous gas to accumulate as quickly as possible!
Because according to normal logic, although the poison gas level is very powerful, because the underground space is large, it will take time to condense enough poison gas to display its power.
But Cao He took action one step ahead and turned off the ventilation device, which caused the poisonous gas to spread faster!
These iron-eating insects, faced with the erosion of the dense poisonous gas, immediately fell down like kites with broken strings!
This scene also taught Kong Xingyu something to learn.
If he were in charge of the defense of this underground fortress, he would also use poison gas, but he would definitely not use it from the beginning.
He will choose to take this step only when there are a lot of bugs entering this space.
But he ignored one thing, that is, it takes time to release poisonous gas, and because the ventilation device is installed underground, it will speed up the dissipation of poisonous gas and must be closed in advance. Cao He is indeed more thoughtful about all this and does better. good.
However, Cao He's calculations seemed to be a little more ambitious than Kong Xingyu's.
Because after these iron-eating insects fell on the metal layer, they were poisoned by poisonous gas, so the corpses after death not only began to rot from the inside out, but these corpses were also highly poisonous.
The number of bugs was small at the beginning, and these rotting corpses could not have much effect.
But when there are enough dead bugs, these accumulated rotting bugs will also form a force that can be used to defend the underground fortress!
Yes, these dead insect corpses can also be of great use!
Because when a human being dies, the corpse will produce corpse poison, and then the stench will fill the sky, turning into viruses and bacteria, becoming a source of viruses that infect other people, and as the number of dead people increases, the corroded corpses gather together, and it is extremely easy to form a plague. Produces great damage!
The same principle applies to the human race as well as to the huge race of Zerg!
After the bugs die, because they are poisoned by poisonous gas, their corpses will decay faster, and the viruses they produce will be more deadly, and they can also kill the bugs that keep rushing in behind them.
As long as the number of accumulated insect corpses increases by then, the effect of these corpses will be no worse than the poisonous gas defense of the underground fortress!
After all, the poison gas storage capacity they had previously deployed was limited. No matter how much they prepared, it would be used up. But as long as there were the corpses of these bugs, they could also add an additional line of defense!
You might even want to imagine that if there are enough corpses of dead bugs here, you can directly scare away the bugs that are about to rush in, achieving the effect of once and for all!
Sure enough, in the surveillance footage, after these iron-eating insects fell down, the corpses quickly began to rot, and even the rotting corpses began to smoke. This was obviously the production of a new poisonous gas. !
These poisonous gases merge with the original poisonous gases and continue to corrode the new insects that rush in!
More and more dead bugs have accumulated on the metal partitions.
At first, there were only iron-eating insects on it, which were eager to eat metal. But as one channel after another was opened by iron-eating insects, more and more other types of insects flew in quickly. Although they were eroded by poisonous gas, And after he died, he completely collapsed on it.
However, because the passage has been discovered, new bugs are still rushing in from the insect tide outside. They don’t care about what is going on inside and just rush in!
As the number of these corpses continued to increase rapidly, Kong Xingyu also frowned.
These bugs seem to be able to sense that there are people in this underground fortress, so even though there are many difficulties here, they still keep coming in!
If this continues, although the number of insects killed has exceeded the initial estimate, it has far exceeded Kong Xingyu's previous estimate.
But soon these metal partitions will be overwhelmed by the number of insect corpses piled above them, until they crack and become damaged, or even become completely unable to support themselves and fall apart!
At that time, not only the bugs from outside will rush in and start rushing through the countless passages and secret passages, just looking for any living thing that can be torn to pieces and devoured by them, even the corpses of the original bugs will be scattered. Above the underground fortress, causing great pollution.
However, Cao He has done a good enough job. If Kong Xingyu were to control all this, he might only be able to hold on for half of Cao He's confrontation time, and would have to prepare the combatants in advance for the battle!
Cao He also knew that he had tried his best, so there was no expression of disappointment on his face.
Instead, he calmly took out a bottle of evolution potion from his own mental space, took a sip, cheered up, and prepared for the next thing.
Under the gaze of Kong Xingyu and Cao He, they saw that the original dozens of layers of metal partitions used to disconnect the passage from the underground fortress were on the verge of collapse, and signs of fragmentation were appearing layer by layer, and The speed of fragmentation is getting faster and faster, and it is about to reach the point of fragmentation!
boom!
When the first layer of metal partitions breaks, the dozens of layers below will also do the same in the next moment, completely broken!
Bang bang bang bang bang bang!
!
All of a sudden, a large number of insect corpses were scattered down, followed closely by more live insects!
And now, this battle against the insect tide has just begun to enter its real moment!
I saw these living insects flying quickly into the secret passages in the underground fortress, looking for the breath of living people.
However, these secret passages are very complicated. It would be extremely difficult for Cao He or Kong Xingyu themselves, as engineers who built the underground fortress, to get out of these secret passages or enter the underground fortress without a map. .
After some bugs rushed in, they flew back and forth in the dark passage without any possibility of destination.
Instead, they went around and around, as if they had entered a huge maze, where they could not find any direction and were completely lost.
However, these lost bugs are already the luckiest ones who flew into the secret passages of the underground fortress.
Because some insects flew in the underground fortress for a while, and found that there was suddenly no way forward, and then the entire wall of the secret passage where it was located suddenly spurted out flames of intense temperature, directly burning them into a pile of ashes!
After the insect died, it was detected that the aura of the insect disappeared, and the flames in the passage gradually dissipated and returned to their original state, making it impossible to tell what had happened here before.
Other bugs, after straying into a certain secret passage, were instantly attacked by a large number of darts, poisonous needles, knives and other hidden weapons, and were directly beaten into sieves!
After the insect dies, these attacks will automatically stop, and then Cao He will order a cultist to go to the passage to clean up the insect's body and the hidden weapons on the ground, leaving them as they are.
besides.
There are also venom traps that spray highly toxic venom at the bugs.
Once a bug enters, it will immediately seal the secret passage and release a large amount of poisonous gas into the poison gas trap.
There is also a boulder trap where insects fly in and suddenly drop a boulder, forcing them to be smashed into meat patties...
All kinds of traps are hard to guard against, and each one is more cruel and sinister than the last.
Although these insects relied on their numbers to force their way past the poisonous gas seal outside, they immediately stagnated in the face of countless dense secret passages and were unable to continue deeper into the underground fortress.
These vicious traps were originally used to deal with other human players who wanted to invade the Sinners Guild. Now they can be used on these bugs, and they can also work wonders.
However, although Kong Xingyu always had the upper hand in the confrontation with the insect tide, the faces of Kong Xingyu and Cao He did not look good.
Because of the number of times these dangerous situations are used, no matter how much preparation is done in advance, they cannot be used endlessly.
Standing on the consoles on Kong Xingyu and Cao He's side, they can clearly see the remaining number of uses of each trap.
And now the number of uses of major traps is rapidly decreasing.
Although the number of bugs killed by these traps is quite large, compared with the tens of billions or even hundreds of billions of bugs outside, it is not even a drop in the bucket!
Soon, after these traps are used up, these bugs will have the possibility to continue rushing down!
And if these bugs go one step further, they will have direct contact with the guild citizens of the Sinners Guild!
Although even if the trap is gone, the maze shape of the underground fortress alone is enough to stop these bugs for a long time.
But just because it has been blocked for a long time does not mean that it can be blocked forever!
Because these bugs can continue to search without any concern as long as they are not killed by traps. If they are allowed to fly around repeatedly, they will eventually find a place deep into the underground fortress!
Two hours later.
At this time, the remaining uses of the traps set in the underground fortress have all been cleared.
In Kong Xingyu's opinion, the maze of secret passages that could trap the bugs for at least an hour was broken by these bugs in an incredible way!
Originally wanting to crack the maze, according to human thinking, they would mark the places they walked through, then look for patterns, and finally find the way out.
But these bugs don't need to be so troublesome.
They just need to wait for subsequent companions to join and they can crack everything here!
Because their biggest advantage is quantity!
When more and more bugs fill the dark passages one by one, those dark passages that cannot continue downward will be blocked by the bugs with their bodies, leading to a dead end.
In this way, when all the wrong secret passages are blocked and crowded, the remaining secret passages that can continue to fly are the secret passages that can go deeper into the underground fortress!
They can't find the correct exit of the secret passage, but they can squeeze out the exit with their huge numbers!
Even though Kong Xingyu and Cao He thought about many ways to crack the secret passages in the maze when they first designed the underground fortress, they never thought that one day the insects would crack it using this trick!
But now that the disaster has happened, all we can do is face it!
