In the dim and damp undersea building, the cold air flow continues to drift from the sky, and after encountering the blazing fireworks at the entrance of the stairs, the cold and hot air currents alternate, forming a strange wind current.

"Rest for three minutes, then continue to probe upwards!"

Collison gave Rutz's order on the public channel, and then, regardless of the other people's reactions, he directly took the gun and walked to the top of the suspended floor.

On the edge of the railing, Lin Yuan glanced at Huang Zhao and Feliana, who were not very good-looking, and several pieces of information about Huang Zhao's presence on the dark web forum flashed in his mind, and there were some vague guesses in his heart.

"When it's two, what can be detected, if you have the heart, you can just do it for half a day!" Liang Ziang hugged the gun and complained with some dissatisfaction.

Lin Yuan smiled and didn't say much.

Adeline, on the other hand, familiarized herself with the terrain with several new security personnel, as well as quickly receiving biological knowledge in preparation for the next mission.

The repair time was soon over, and everyone began the second round of exploration according to Collison's original plan.

Above the suspended special staircase, the wall destroyed by high-explosive bombs obscured the flames of solid incendiary bombs at the entrance of the building, illuminating the gray surroundings orange-red.

Weak wind currents continued to come from all directions, and through the filters built into the combat system, Lin Yuan vaguely smelled the smell of burning.

There was a thick layer of bat carcasses on the ground, and under the powerful high temperature of the incendiary bomb, the bat carcasses showed a waxy melting feeling, and under the dim yellow flames, it was like glass, hard as sand.

Lin Yuan was still the vanguard, holding the alloy knife tightly at this time, and walking alone at the front.

The special military boots stepped on the glazed material, and Lin Yuan felt a slightly disgusting heat

The road ahead is full of rocks, and further up is a broken staircase, fortunately the staircase is not really suspended, but one side is next to the experimental building, so although the staircase is destroyed, it can also climb up the broken building by climbing the wall and equipping the skirts.

Buzz Buzz......

Lin Yuan turned on the overclocking alloy knife and cut the broken wall blocking the road into pieces, revealing the upper floor of the black hole.

There was no hint in the vision of the holographic helmet, and there was no movement from above, Lin Yuan's heart turned, and then he manipulated the combat system and jumped up from the broken hole.

Call......

Before the people could stand firm, dozens of vicious winds struck.

Zheng!

Lin Yuan's footsteps slid quickly, his body was like flying, and the blade turned, like a touch of full moonlight, instantly tearing apart the black curtain that rushed in.

But there were so many creatures hidden in the black, even if Lin Yuan used all his strength, there were still dozens of strange creatures that jumped over his defense line and rushed towards the firelight below.

"Stand back!!"

Liang Ziang let out a loud shout, then pulled his knife forward, and slashed the twelve bucket-thick creatures that attacked.

Adeline was the expected third line of defense, but Lin Yuan's strength was superb, blocking most of the two-winged creatures, coupled with Liang Ziang's quick shot, she had nothing to do for a while.

The battle lasted seventeen seconds, and when Lin Yuan threw a flashbang that had been supplied, the two-winged creatures that looked like outlaw moths finally retreated.

"Hoo ......"

Lin Yuan was pressed against the wall, his chest rising and falling with his breathing.

Laugh at......

With several slight sounds, seven or eight smoke-bomb-like weapons were thrown up from under the staircase, wisps of light-colored gas quickly filling the entire space.

Those strange creatures with wings and a human-like face smelled these gases, like autumn wind and fallen leaves, they fell to the ground one after another, and those of the same kind behind them saw that they were not right, screamed a few times, and then evacuated the entrance of the building.

After a while, after Lin Yuan confirmed that the surroundings were safe, Adeline and the others climbed up.

"Are you alright?"

Liang Ziang walked quickly to Lin Yuan's side, and his figure happened to block Adeline and the others' sight.

"It's fine!"

Lin Yuan quietly moved his trembling arm behind him, and responded to Liang Ziang's slightly tired tone.

Adeline didn't pay attention to Lin Yuan's state at this time, she was shocked by the broken limbs all over the ground.

Under the cold flame light, starting from Lin Yuan, countless black-winged creatures were stacked into a half-meter-thick [circular carpet], these creatures had smooth incisions, and almost all of the wounds were cut in two.

"Ghost-faced vulture, I didn't expect there to be a ghost-faced vulture here!"

Collison leapt up the stairs and looked at the shattered creatures all over the floor, his expression of surprise for the first time.

"Ghostface?"

Lin Yuan frowned.

In the library of the Third Military Academy, Lin Yuan had flipped through similar books on biological records, including the information of the ghost-faced vulture.

The ghost-faced vulture is native to a certain area of Mars, has a vulture-like body, has two bat wings, has a fierce personality, is bloodthirsty, and is very territorial, with the speed and power of Sequence 9, with a pair of sharp claws, if it explodes with all its might, even Sequence 8 will suffer a loss.

The most terrifying thing is that this creature is a social creature, and the group is sorted according to the law of the jungle, and the number of ghost-faced vulture groups less than 1,000 will have two sequence 8 king creatures.

The Ghost-faced Vulture group of between 1,000 and 10,000 will have nearly 100 Sequence 8 bosses, and if the number exceeds 10,000, there will be terrifying creatures in Sequence 7.

The mutated creatures of Sequence 7 are simply not something that ordinary people can deal with!

Not even with biological weapons!

Lin Yuan glanced at the ground, and a series of data immediately appeared in the holographic helmet, and after two seconds of analysis, the system background came up with accurate data.

124 pcs!

Thinking about the black pressure before, the number of ghost-faced vultures in it is at least thousands.

When I thought of this, even if it was as strong as Lin Yuan, my heart was heavy.

After remitting this information to Collison, Lin Yuan did not hesitate, and walked directly to the exit of the stairs to block the entrance and exit of this floor to prevent accidents.

"Boss, the situation here is not good, the Ghost-faced Vulture is not an advanced creature that ordinary weapons can deal with, even if there is a biological repellent, we have to consider retreating!"

Huang Zhao didn't respond to him, just stared at Feliana coldly, but this woman's mood was extremely high at this time, she was squatting, pulling the remaining limbs on the ground with her hands, and she didn't feel the bloody horror around her at all.

Sensing that her eyes were converging on her, Feliana glanced at Huang Zhao quickly and let out a disdainful sound.

"Are you afraid of death?"

"Humph!"

Huang Zhao's face was angry, and after snorting coldly, he didn't say much to Feliana, followed directly behind Adeline, and strode upstairs.

Out of sight is pure!

Everyone climbed the floor attentively, and after spending about ten minutes, when Lin Yuan pushed open the closed superalloy door again, looking at the densely packed and boundless storage of the experimental tank inside, Adeline sighed invisibly.

The experimental floor was filled with the stench of some kind of living organism, and when the cold light was set up, the eyes were greeted by a ruined ancient war site.

The broken special glass jar has traces of bright red drying, and the corpses of red-eyed bats are scattered on the ground, some are as huge as a jar, some are as fine as chopsticks, and they are different in shape and similar in appearance.

Call......

In this huge space, a gust of wind suddenly blew.

The soluble plastic rod filled with the cold flame liquid shook gently, like those warm-colored leaves that were about to fall on an autumn day, and the light was scattered, the light and shadow were confused, and the air was cold, like the underworld.

Lin Yuan and Liang Ziang held guns in their hands, and kept advancing alternately in the form of crossfire, and soon figured out the situation within a radius of 100 meters.

Walking inside the gate, the deeper you go, the more red-eyed bats the corpses of red-eyed bats on the ground become, like rice crops lacking moisture in winter...... Flattened and withered!

"What's going on?"

Liang Ziang squatted on top of a glass jar at this time, swept the dry flat corpse under his feet with the muzzle of his gun, and said with some doubts: "Is this sucked dry by his own people?" ”

Lin Yuan was in front of him, also squatting on the top of the glass jar, observing for a few seconds, and said: "There is residual temperature, no scars, the preliminary estimate is that he died of physical exhaustion!" “

"Exhaustion?"

"It can be understood as a strange life that survives in the cellar for countless years and dissipates as soon as it is born!"

"If that's the case, is it possible to use harassment tactics?"

"Treat the symptoms but not the root cause!"

The harassment tactic can effectively revive some red-eyed bats and then eliminate them if the environment is not adaptable, but this tactic has a flaw, that is, the red-eyed bats are a group of mutated creatures with extremely high automatic adaptability!

Once the other party adapts to this environment, or evolves more powerful skills, it is very likely that the humans who enter this deep-sea base will be wiped out.

Moreover, in addition to red-eyed bats, there are other unknown creatures here, and acting rashly will only cause disaster!

……

After an hour, Lin Yuan and the two of them had gone deep for nearly a kilometer, almost arriving at the inner area of this experimental tank, the surrounding environment was gloomy and depressing, and residual biological traces could be seen inside the tank, and in several of the well-preserved tanks, Lin Yuan knew that he had found a human body soaked in an unknown solution.

"He is about 175 tall, with deep facial features, long blond hair, European and American race, arms above the knees, sharp nails, protruding waist and spine, lush body hair, and mutation...... Monkey? ”

Liang Ziang muttered in a low voice while observing the creatures in the tank with the magnification.

"That's not a monkey, that's a mutated human, or what can be called an atavistic human!"

Lin Yuan said solemnly, in front of him, there were about thirty or so jars that were intact, and the specimens stored in them were all humans, and they were all the kind of humans with atavistic characteristics, and on the deepest tank, Lin Yuan even saw a completely ape-like creature.

Thick lips valgus, bulging eyebrow bones, thick arms, huge waists, and thick hair...... Could it be that this is a series of evolutionary maps specially created by life scientists to study the theory of evolution?

Thinking of this, Lin Yuan moved his firearm and began to carefully observe the characteristics of the tank creatures, trying to find some kind of information in the inference.

Next to Tank 478, Feliana looked surprised as she excavated the bones of a creature hidden in the dust, a mole-like body that was about a meter long and almost certain to be some kind of mutated giant creature.

"You, open the storage bag, I'm going to take it away!" Feliana pointed to a part-time security archaeologist and commanded loudly.

"Be a little louder!" Huang Zhao was not far from her, digging for an ancient artifact that might have been left behind, and when she heard Feliana's call, she whispered with an ugly face.

It's a pity, Feliana is really excited, this time she found the Bauhinia mole rat that has been extinct for thousands of years, as long as she returns to the ground and operates for a while, she will definitely be able to get the front page of the Journal of Life in the first half of the year, and then she will talk to those old guys again, and if she can't win the best biology Nobel Prize this year, it is very likely to be her own!

The mutated Bauhinia Mole, that's a blind spot in current biology, hahaha, I didn't expect to be met by me, hahaha......

Feliana spoke a little louder, and the clusters were very close to the deepest part, so it was natural to alarm the densely packed creatures inside.

However, it was still quiet.

Like a cemetery without forgiveness at midnight, it is dead and cold.

Creak......

In the dimly lit space, there was a subtle sound, and even if the existence of Sequence 7 listened carefully, it was difficult to tell if it was a creature cry or an auditory hallucination in his own head.

"Huh......"

"What's wrong?"

"It looks like a dark shadow has passed, but I don't see what it is?"

"Dark Shadow?"

"It's about the size of a mouse, it's fast, maybe I'm hallucinating!"

"Adeline, there may be creatures coming towards you, please be careful!"

"Are there any specific parameters?"

"Probably a rat, it's too fast to see!"

After the words fell, there was a rapid exclamation from the other side of the headset, as if someone was injured.

Before Lin Yuan could ask, a mournful cry for help came from Adeline's side.

"Enemy attack!"