The crowd soon came to the end of a pipe, where there were several forked lines.

At this time, the air conditions around them seem to be much better, the concentration of biogas has decreased, and the pungent smell is less pronounced.

"It's really amazing, the smell is gone, what is the principle?"

Lin Lao looked surprised.

Scientifically speaking, the deeper you go underground, the more biogas should be made, how can the concentration be reduced?

He asked in a low voice, and he didn't expect Xia Lu to give him an answer.

"The metabolism of xenomorphs requires a certain amount of energy, especially the lower xenomorphs, which will work hard to obtain the surrounding energy for metabolism, so they will absorb a large amount of biogas."

"Moreover, xenomorph mutations require constant acquisition of genes, so they create a stable yang environment to attract other organisms to approach."

Xia Lu patiently explained to them.

This is a way for xenogeneous species to trap their prey.

While explaining, Xia Lu generally carefully observed the three forks.

After a while, Xia Lu chose a pipe and continued to walk in with everyone.

Just walked out for a while, and suddenly Xu Qian behind let out an exclamation.

Everyone hurriedly looked in her direction, but saw Xu Qian pressing one hand against the wall, with an extremely disgusting expression on her face.

When I looked at her hand, I saw that one of her hands holding against the wall was not covered with slime.

The slime seemed to be alive, covering her hands and squirming.

"It's moving, what is this!"

There were already tears in Xu Qian's eyes.

The battles she participated in were mostly outdoors, and she would specifically pick out large xenomorph attacks, which was the first time she had encountered such a situation.

Girls have no resistance to this slimy thing itself, let alone life.

"Don't be afraid, this is meat moss, it is not infectious and has no offensive power, just shake it off."

Xia Lu whispered to comfort her.

Xu Qian hurriedly withdrew her hand vigorously, extremely disgusted to shake off the mucus on her hand.

"How long do we have to walk, how can I go further inside, the more wrong it feels."

At this time, Zhang Yang spoke.

He was already covered in goosebumps at this time, and he was disgusted by this scene.

Xia Lu's gaze quickly swept over him.

"I said I can't fight and leave as soon as possible, and the next thing will be even worse."

Xia Lu said coldly.

Zhang Yang hurriedly closed his mouth, and Xiao Li glanced at him gloatingly.

As the crowd continued to walk inside, the air around them began to burn hot.

Xia Lu asked Miss Zhou to release her ability, and soon a white light lit up in the waterway.

In the light, the crowd saw white smoke around them.

Zhang Yang and they subconsciously covered their noses, but when they saw Xia Lu, they didn't make any moves, and they all put down their hands one after another, frowning and looking around at the smoke.

Xia Lu didn't say much, and continued to walk inside with them, and after walking out for a while, Xu Qian let out an exclamation again.

Her voice was faint, but it was unusually clear to hear in the sewers.

And at this time, no one looked back at her, because everyone knew the reason for her surprise.

The walls and floor of the waterway ahead were covered in an eerie layer of flesh, like the intestines of some living organism.

The surface of the flesh is constantly undulating, as if it is alive, and there are many long bumps on the surface, constantly swaying in the air, as if absorbing air.

Xia Lu stopped and gave Xiao Li a look.

Xiao Li quickly released the flames.

Whew, the firelight filled the entire sewer, and the flesh on the wall in front of it shrank rapidly, making a squeaking and squeaking sound.

Immediately after, the entire waterway trembled, and a booming sound rang out.

"It's the water!"

Lin Chuan exclaimed.

Zhang Yang and they immediately panicked, and there was only one result when they were hit by the current in such a narrow waterway.

Under the impact of the huge amount of water, they are likely to be crushed into pulp by the current of water in an instant.

And just as the voice was getting closer, Xia Lu suddenly raised one hand, and a spatial barrier appeared in front of him.

Rumble! The water soon rushed in from the front and slammed into the barrier.

However, the seemingly thin barrier is extremely strong, and it is alive and well blocking the rushing water.

Everyone breathed a sigh of relief, but they didn't relax either.

In front of them, the opposite side of the barrier was already filled with water, and as long as Xia Lu relaxed slightly, the current would hit them.

Just when they were worried, Xia Lu suddenly raised his other hand.

In the middle of the current, a huge whirlpool appears, constantly absorbing the current.

Different space!

Everyone changes color!

Xia Lu summoned a certain different space and absorbed all the water.

The space of Xia Lu is enough to accommodate the three northern cities, and it is very simple for such a huge space to absorb such a little water.

Soon, Xia Lu absorbed all the water.

Whoever stores it in his alien space, time stops, not worrying about the water hitting other objects.

Xia Lu continued to lead them forward despite everyone's surprised gazes, and during this time, he kept asking Xiao Li to scorch the flesh moss attached to the wall in front of him.

The crowd moved forward as they cleaned up.

A short time after I walked out, the burning sensation in the air became more and more intense, and the fog became thicker and thicker.

Someone has already begun to breathe and coughs violently.

And at this moment, the air pressure in the cave suddenly intensified, and a powerful air current rushed towards everyone.

Roar!

The huge air currents formed a roar like the roar of a wild beast in the waterway, and the ground trembled beneath the feet of the earth-shaking people.

"Oops!"

Zhang Yang was shocked, and hurriedly used his hands to make a spear with a silver glow and pierced it into the ground, holding it tightly, and at the same time helping others make a few to fix on the ground.

Everyone gripped their spears one after another, and greeted the impact of the powerful air current.

Xia Lu didn't hold the spear, but stared ahead.

Suddenly, a pair of cold eyes appeared in the darkness in front of everyone.

This was followed by a head with dense teeth and sharp teeth.

The skull was so large that it took up almost the entire waterway and slammed into them.

This is the time!

A cold glint flashed in Xia Lu's eyes, and the spatial blade slashed out, slashing down the moment his head approached them.

With a click, the skull was separated from the middle, and the powerful impact made its body keep moving forward, directly hitting Xia Lu's spatial blade, and was separated from the middle by the spatial blade.

The blazing blood soon filled the tunnel, and everyone was soaked in blood.

The blood flow in the corridor formed a raging stream of water, constantly hitting everyone.

Everyone clenched the spear made by Zhang Yang, and there was no intelligence to fight back at all.

"Help me!"

Suddenly, Xiao Yao let out an exclamation.

Xia Lu subconsciously glanced in her direction, but saw that her petite body was covered with black shots, and one shot tightened her neck.

In the end, she was inexperienced in combat, and she actually forgot to use her ability in a critical situation.