"Gas bombs? Great idea, really good idea! ”

Gao Ao Tianyin smiled coldly.

"Fight against me, and I'll make your life worse than death!"

"Hurry down and prepare!"

Gao Haotian commanded.

"No, Shizi!"

Some of the private soldiers turned back and were gassed.

This poison gas bomb is also listed as a taboo thing by the military department in the Galactic Alliance.

However, the major warlords will secretly develop poison gas bombs.

This thing, after all, is particularly lethal, and it can also be used in some special environments to kill people invisibly.

Nantian and Xue Yilao were like a sturdy "Great Wall", resisting wave after wave of attacks launched by Gao Aotian's men.

In the mine, there are many corpses of arrogant private soldiers.

"It's not a way to fight like this, there are too many arrogant people. I have to think of a way to capture the thief and capture the king first! ”

As soon as the snow is old, his eyes roll.

"I can't kill it!"

Nantian immediately denied it.

In the mine, the road is narrow and the space is limited.

The place where Gao Aotian was standing was quite far from the position of Nantian and Xue Yilao.

In this distance, there are layers of private soldiers, who protect the arrogant sky strictly.

In addition, the conditions of the mine are limited, and heavy weapons cannot be used to carry out devastating strikes.

Nantian's "Taigu" spacecraft is basically useless.

It is too difficult to take the head of the proud heaven among the hosts, and it is simply impossible.

"We fight and retreat! That's all there is to it! ”

Nantian said.

The number of arrogant people is still increasing.

Some of the private soldiers were also very strong, one after another.

In this kind of wheel battle, Rao is Nantian and Xue Yi are both top masters, and they are a little unbearable.

Xue Yilao was the first to start hanging colors.

Later, Nantian also had a few more scars on his body.

At this time, Gao Haotian's poison gas bombs and some biological and chemical weapons were also prepared.

A series of low-profile armored vehicles drove into the mine.

An officer stepped down and saluted the proud sky.

"Shizi, poison gas bombs and biological and chemical weapons are ready, just waiting for your order!"

"Ready? Is it certain to kill those three people? ”

Gao Aotian asked.

"Report to the world, there is absolutely no problem with the task! At your order, I urgently dispatched 10,000 Z-type pestilence-gas bombs from stockpiles, as well as thousands of biochemical artillery pieces that could fire highly toxic substances. ”

The officer said triumphantly.

Gao Aotian nodded: "Okay, Z-type plague poison, one milligram, you can poison it, one million nine-grade mecha battle honor-level masters wearing A-type mecha." And a gas bomb contains at least 100 liters of toxic substance! 10,000 gas bombs fired in unison, it must be spectacular! ”

"What the prince said is extremely true!"

The officer said flatteringly.

"Shizi, in order to ensure safety, you retreat first, and then I will lead people to finish the shells, and then block the entrance to this mine."

The officer said.

"Okay!"

Gao Haotian smiled.

After receiving the order, all the private soldiers around Nantian and Xue Yilao retreated at once.

Nantian and Xue Yilao looked strange.

"What's going on? How did these crumbs retreat? ”

Nantian was puzzled.

"Yes, is it arrogant that the sky is so kind?"

Xue Yilao was also extremely surprised.

After Gao Aotian led most of his private soldiers to retreat.

Inside the tunnel, there are only hundreds of armored vehicles used to fire poison gas bombs, and thousands of biochemical artillery pieces that have been erected.

Armored vehicles, biochemical and chemical artillery lined up in columns in the mine, and blocked their way to the south.

Inside one of the main tanks, sat the officer.

The officer and his men had put on special gas masks, and they had swallowed anti-poison pills with anti-poison effects.

"Ready to launch! 123！ ”

The officer gave the order and pressed the launch button.

"Bang bang!"

Gas bombs, as well as bio-chemical artillery fires, were not as violent.

In the tunnel, all that reverberated was a low voice.

Fumes!

There was also some powder dust, which was also wafting up.

The air in the entire mine tunnel became turbid.

Xue Yi's face changed greatly.

Immediately, Xue Yilao scolded: "The hateful and vicious arrogant heaven actually used poison gas bombs and some biological and chemical weapons!" This thing kills people invisibly! ”

"Master, this is poison gas! Poisonous gas! ”

Xiaoxing also reminded.

"The meteor mecha has automatically opened the air protection shield to isolate the poisonous gas!"

Xiaoxing reacted instantly.

In this poisonous gas, there is a meteor mecha in the southern sky, this anti-sky mecha, and a conscientious little star, which assists.

Nantian is in the poisonous gas, but there is no big problem.

However, Xue Yi Lao and Xiaoqing, but not good.

Xue Yilao and Xiaoqing are both wearing A-type mechas, and in terms of protection ability, they are far inferior to the meteor mecha in the intermediate state.

Xue Yilao and Xiaoqing, both of them were infiltrated by poisonous gas to a certain extent.

Xue Yilao was strong because of his mecha cultivation, and after inhaling the poisonous gas, he could still hold on for a while.

Xiaoqing can't do it.

The poisonous gas entered the body, and Xiaoqing's whole body was black and in danger.

"Let's go, the road ahead is also blocked by these miscellaneous pieces of Gao Arrogant, we can only run backwards! Be sure to take Xiaoqing to a safe place! ”

Nantian picked up Xiaoqing on his back, dragged Xue as soon as he grew old, and began to run backwards.

The gas also spreads quickly.

The UL-508 mine where Nan Tian and the others were located was not the longest in the first place.

The poison gas bombs and biochemical artillery that Gao Aotian threw in were too many.

After the time of one stick of incense, the entire UL-508 mine is full of extremely high concentrations of various toxic substances.

Gradually, Xue Yilao began to be unbearable.

"Childe, the old man has taken a step first!"

Old Xue Yi tilted his head and fell unconscious.

Nantian knew that he couldn't delay any longer, and it seemed that he could only bring Xue Yilao and Xiaoqing into his own life realm and breathe fresh air to alleviate the toxicity.

It's time for Nantian to take action.

Xiaoqing, who was on Nantian's back, was in a daze, his fingers moved, and he accidentally happened to touch a rock wall.

"Zhiya!"

Suddenly, the land under Nantian's feet disappeared!

Nantian, Xiaoqing, and Xue Yi all fell down.

"Bump!"

Nantian landed, looked around, and found himself in a deep alley.

With the light on the meteor mecha, after scanning the surroundings, Nantian was startled.

Around this trail, there are a lot of white bones.

Next to the bones, there are some rusty weapons.

The rock walls around this trail are also carved with some ancient murals.

Everything here, as it seems, is so old.

"I'm in a Mithril mine, looking at these bones, and weapons. Could it be that this deep and dark path was once an ancient mine road. It was used by the ancients to mine ore. ”

Nantian guessed.