Qin Yu's question didn't fall for long, he began to hear the screaming sound around him, at first, Qin Yu hadn't reacted to what was going on, knowing that the egret began to order the troops, rushed to the place where the scream occurred, and defeated the entrance of the cave, Qin Yu reacted.

That's the passage opened by the earth demons, just now, the earth demons came out of the ground through these passages, and fought with the troops, although the number was not much, but the other party's shot was relatively sudden, if it weren't for the egret and others such a group of masters, the troops would not have suffered some losses. So the troops are now very active, following the orders of the egrets, and begin to clear the holes one by one.

"Molotov cocktails. The destructive power is not great, but the ability to burn oxygen is very strong. Tu Miaoyou exhaled, "In the case of the rapid combustion of oxygen in the internal space, the underground space will definitely draw a large amount of fresh air into it to supplement the consumption of oxygen." ”

"It's just that there is a limit to this supplementation, and combustion produces carbon dioxide, and even if the density of the atmosphere is different, this replenishment will not be very fast. If the Earth Demon had tried to wait for oxygen to fill the underground space again, he would have died of lack of oxygen. ”

"The most important thing is that no matter how smart the earth demon is, it is impossible to have the ability to observe and learn about aeroscience, and even if it is a scholar in this world, there is no one who studies the composition of the atmosphere, let alone monsters. This is a gap in the knowledge system, which is simply not bridged by force. Tu Miaoyou smiled bitterly, "I didn't expect that you could use the environment to this point." ”

"To deal with the enemy underground, it is either fire or flooding. You haven't seen the tunnel battle yourself, can you blame me?" Egret shook his head indifferently, "The best result now is to deal with it without discovering this problem, and just suffocate to death when the oxygen disappears rapidly, in this case, it will save us a lot of effort." ”

"This possibility is very low, it is the existence of a high-level profession, and it also has a good ability to sense danger, not to mention that there is a king among the demons, I'm afraid that as soon as your arrangement is made, it will be convenient to detect that something is wrong." ”

"Even if they perceive it, the earth demons will not know what we are doing, and when they almost understand, how many of the tens of thousands of earth demons will be able to walk to the door or protrude through the passage?

Egret smiled contemptuously, "The gap in knowledge is a kind of power in itself, and we still use it so suddenly and extremely, you think that the earth demons are all immortals, even if they can react, or even escape, then there will only be two or three kittens left." ”

This is not a joke, think about the fire, in fact, most of the dead are not burned to death by the fire, but because of the lack of oxygen and smoke, the smoke has poisonous gas, people can not bear it at all, and the flame in the enclosed space will take away the oxygen, the lack of oxygen human activity will become worse and worse, and eventually die of lack of oxygen.

Now the earth demon is facing such a situation, so a lot of incendiary bombs, not to mention the oxygen in this area of the dwarf city, even if it is twice the size of the area, it can burn the oxygen out. The egret only deliberately used some more incendiary bombs because of the fact that there may be a lot of passages for the earth demons, so as to keep the dwarf city in a vacuum for at least ten minutes, and not breathe for ten minutes, well, or some creatures can do it, but this definitely does not include the earth demons.

It is a species that consumes a lot of energy and has a strong ability to act, and its dependence on oxygen is far beyond that of ordinary organisms, and the ability of human beings to act is weaker than that of the Earth Devil, and even speaking, human beings will have a stronger anaerobic tolerance than the Earth Demon.

Within seven or eight minutes, Elizabeth's brows were furrowed, and the egret sensed Elizabeth's spiritual sense from his heart, and smiled on his lips, "It's almost, let's prepare for battle, get ready to fight whack-a-mole!"

Whack-a-mole this game is not only in the world of egrets, but also not uncommon in the rest of the world, that is, it is not called a gopher, it is also the same way to play, hearing this, everyone is smiling, and the whole army is also in a relaxed and happy mood, always ready to face the surprise attack of the ground demon.

Unfortunately, the Gondend came out, but it wasn't a raid.

By a huge earth demon, suddenly broke through the rock and soil from the ground, jumped out of the ground, and then hundreds of earth demons were all out of this cave, this posture, like running for their lives, they couldn't care about the situation that there was still a human army here, it seemed that as long as they could come out of the ground, it would be a victory.

There are a total of five or six hundred earth demons coming out of the ground, but it seems that there are only so many left, the egret didn't say a word, and directly threw a box of incendiary bombs under the cave, and then the dragon spear flashed, smashing the rocks and soil around the cave, and the cave collapsed.

Because the cave itself is not a straight line, it is easy to block, and with the incendiary bomb of the egret, I am afraid that the earth demons after this time will have no chance to come out of the dwarf city.

The most massive earth demon stared at the egret almost as soon as it began to act, and the killing intent and hatred in his eyes were about to condense into substance. This is the king of the earth demons, but in order to rush out of the ground as quickly as possible, this king has almost exhausted the natural power of his body, and now he can only barely stand up, panting deeply.

Sharp lack of oxygen, but also must carry out strenuous exercise, do not explode the force of nature, this king of the earth demon does not even have a chance to escape from the underground, for no reason, the entire underground earth demon will die because of this, only less than six hundred earth demons escaped from the underground, this is simply the sworn enemy of the extermination!

The hatred of the Earth Demon King for the egret, if it can be turned into an attack, I am afraid that the egret will be burned now. It's a pity that no matter how much resentment there is, it won't have much impact on the egret.

"Human, I'm going to challenge you to the sacred!I'm going to fight to the death!I'm going to tear you apart!" the king of the earth demon roared furiously, even when the state was no longer in its prime, this king still proposed a single challenge, it wanted to leave a way back for its own race, even if it was a monster, it would not want its race to be completely wiped out.

His own branch of the earth demon is actually no longer the branch of the monster world, it is completely a system that develops on its own in the human world, and with the leadership of his own king, he has actually escaped the constraints of the original earth demon clan. Unexpectedly, it was finally destroyed in the hands of the egret.

It's just that up to now, the Earth Demon King still hasn't figured out one thing, that is, Egret is not a guy who was born and raised in this world and pays attention to any sacred rules.

"Elizabeth, the idiot is up to you. The rest of the people, the high-level professionals, besieged the lord earth demons, and the rest of the people cleared the general earth demons. Fifteen minutes later, I'm going to see the results of the battle!"