When Nangong Yunfei and the others arrived at the central control room of the laboratory, there was no one inside. Only a shocking blood-colored drag mark was seen, extending from the corner of the wall to the broken vent in the center of the ceiling. On the unsmoothed edge, unsolidated blood beads were dripping downwards. The two elite team members turned on the tactical flashlight and swept back and forth to the dark hole a few times, nodding and confirming to Nangong Feiyun.

It seems that the alien species is moving through the ventilation duct, which is so troublesome!

Due to the many obstacles inside the facility, it is impossible to locate the location of the alien species without professional equipment.

"Open the monitoring record."

A security officer responded and operated on the console for a while and adjusted the recent monitoring record in the database. Nangong Yunfei saw the bloody experiment, saw the thunder of the experiment, and also saw the researchers who made crazy actions due to despair. Perhaps because the body metabolized too quickly, the mutant was more edible than it seemed. The alien species in the surveillance screen ate the researchers trapped in the laboratory one by one, leaving only two big holes twitched a few times, and traced the source to the ventilator of the laboratory circulation system. From there, it smelled the same smell as the food just now. It lowered its body and leaned its head in, and then shrank back. It waved its sharp claws dissatisfied, opened the hole in the pipe bigger and then drilled in.

"Call this control room again"

The screen time in the control room was back more than ten minutes ago. The person in charge of the project who stayed behind found out from the surveillance that the alien species had escaped through the ventilation duct. After anxiously pacing back and forth for several circles, he finally sounded the evacuation alarm and reported this serious experimental accident to his superiors through his communication terminal.

Just a few dozen seconds after he put down his communicator, a few cold claws on the vents on the ceiling pierced the not-too-thick alloy plate and made a huge gap on it. The skinned monster-like alien jumped from it and blocked the panicked person in charge.

Faced with the approaching of alien species step by step, the project leader pulled out a laser pistol for self-defense and fired repeatedly. The laser beam burned several large holes on the alien species, but did not care at all. The blood-colored granulation on the body quickly broke the wounds without any trace.

In the end, the alien species killed its prey without any suspense. Compared to the previous few times that it cut its body into pieces due to excessive force, this time it made great progress - at least it ensured that its prey was intact. Before Nangong Yun flew over, the alien species who was dining suddenly raised its head and listened intently for a while, and then dragged its prey back to the ventilation duct.

"It seems that our opponents this time not only have a very sensitive sense of smell and hearing, but also have a good IQ, which is really difficult to deal with."

After reading all the records, Nangong Yunfei came to a very bad conclusion. Perhaps the difficulty of this hunting would be beyond his imagination.

Nangong Yunfei glanced at Nangong Hui, who was already completely disgusted, and said slowly

“We need equipment and personnel support.”

"Yes, director. The alien species are now circulating throughout the institute through the circulation system. We can no longer curb the situation by relying on our own. Monitoring equipment must be installed at each critical node and equipped with sufficient defense personnel to prevent the situation from deteriorating."

The commander of the elite team was very rational and explained his point of view and did not believe in the force of his team.

After exchanging opinions with the team commander, Nangong Yunfei re-deployed the defense and must limit the scope of the alien's movement to the ground.

Under the complete system, the defense circle is shrinking, and the scope of the alien being able to move freely is becoming more and more limited. It is often the case that once it emerges, it will be quickly captured and surrounded by many elite evolvers. Things seem to be developing in the better direction. Everyone believes that the alien will be killed in no time. After all, the power of a research center cannot be fought against by one or two high-level aliens.

"Strange, it has been a long time since I received any witness reports from alien species."

Nangong Yunfei repeatedly pondered the mistakes in his arrangement. Seeing victory in his eyes, Nangong Yunfei felt a deep sense of anxiety. Logically speaking, there were related equipment and personnel installed at each node of the base. Why was the alien species not caught by any personnel or equipment?

"Maybe it lurks down somewhere?"

A team member said uncertainly

Is it lurking? No! This alien has excellent hearing and smell, and can detect their deployment very far away and take corresponding actions to slip through the gaps in the encirclement net they have arranged. The initiative of this new alien itself makes it absolutely impossible to be forced to lurk.

So where did it go?

As more and more armed forces moved into the underground, there were no blind spots in the entire underground laboratory, and it was indeed a very puzzling thing to not witness the appearance of alien species for a long time.

No, no! There is still a place in the laboratory that cannot be arranged for personnel!

In the deepest part of this underground, where is a sealed biological creature originating from Base 521? It is currently forced to stay dormant by relying on the ultra-low temperature. This is the biggest secret of the entire base. In order to avoid accidents in this biological sample with special skills, the place surrounded by alloy walls not only has no manpower, but even the surveillance is not connected to the research center network and incorporated into the security system.

I made the defense arrangement of the basement laboratory so that I could not escape, but instead pointed out a way for the aliens to reach where they could reach!

But this is not the case, it is much worse than being released from the building! Whether the ignorant alien destroys precious samples, or it accidentally damages the dormant device that is working properly, causing the dormant creature to resuscitate, it will be an unbearable disaster for the entire research center.

Although theoretically, the alien species could not reach the point where it could break through the overlapping alloy walls, Nangong Yunfei was worried about linking to the security system of the secret room through his own terminal...

The body of the ghoul in the secret room fell on the front of a damaged dormant compartment with the cold metal ground, and did not dare to move at all.

After the alarm sounded that made its brain hurt, it was surrounded by well-equipped soldiers every time it appeared. It could be said that it was hitting a wall everywhere, but fortunately it was sensitive and not hurt much.

He came to the outside of this secret room along the loopholes that appeared at the connections of defense. He originally wanted to find a way out around the surrounding area to suddenly have the idea of ​​entering it no matter what. When he was digging out the alloy wall in vain, he occasionally found that the foundation of the alloy room was not as strong as the wall. So he turned himself into a gopher, digging out an authentic tunnel to the secret room from below, and after entering the secret room, he followed his call in his heart to destroy the dormant equipment.

Not long after, a beautiful woman with a human head and snake body sat up in the dormant compartment in the center of the secret room by many pipes and instruments. Her eyes were as deep as the starry sky, making herself, who was looking at her, unconsciously lost in it.

The mysterious creature shook its head, and the green hair that kept wriggling like a snake suddenly stretched out, tied up the ghoul in front of him and stabbed the end into its body. The ghoul's instinctive mind, which was originally chaotic, suddenly woke up, and there were many things that he had never known or even imagined before - including his own name.

The mysterious creature re-enabled his intelligence quickly understood his position and lay on the ground to offer his surrender to the powerful superiors.

And what Nangong Yunfei saw when he opened the monitor with the terminal was like this that made him burn all over the country.

Medusa woke up!

Even if you pour all the armed forces of this institute into a desperate bet, you still cannot destroy the legendary creature!

"Notify everyone to retreat! And close all upward passages after we exit from the ground."

"Retreat? Retreat to the ground?"

The captains of each team who were unknown could not understand why the director gave up this victory at will, and suspiciously confirmed the order to Nangong Yunfei.

"It is to evacuate the relevant personnel from the gathering place, and start now!"

Although the person in charge after the review order was shocked, the good discipline allowed them to execute the base's order without any discount, and the entire gathering place became busy.

Nangong Yunfei, as the last group of members, evacuated the underground laboratory. As soon as he arrived at the ground, Yu Peipei came up.

"What's going on? I received your order to evacuate all the staff from the gathering place."

At this time, Nangong Yunfei's face looked extremely ugly. He glanced at the slowly closed super thick cover with a little worry, and attached himself to Yu Peipei's ear and said in a faint voice:

"She is awake! This gathering place is about to end!"

"ah!"

As one of the absolute senior executives of the gathering place and Nangong Yunfei's wife, Yu Peipei knew very well that a legendary creature code-named "Medusa" was asleep in this experimental center, and his original serum blueprint originated from her body.

Judging from the numerous shackles set by the base on this creature, there is absolutely no friendship between them and her. Even if she doesn't care about the excessive research done by the institute during her dormant period, they cannot coexist harmoniously.

"Then I'll sort out the research data."

Yu Peipei, who knew the seriousness of the matter, immediately turned around and prepared to pack and take away the research materials for nearly a period of time. That was his hard-working research result, and it may even be related to the fate of mankind.

Nangong Yunfei pulled her away

"It's too late. Medusa may recover at any time and have no time to care about those! As long as your people are still there, the research data can be restored at any time."

Yu Peipei couldn't resist her husband and could only evacuate with the large army.

The withdrawal of the Nangong family's forces from the gathering place also caused some panic. The residents of the worried gathering place were asking each other for news and guessing the reason for the sudden retreat of the Nangong family. Many smart little witty ghosts smelled a different smell from it and followed the Nangong family's team to withdraw from the gathering place.

Just as their convoy began to drive away from the gate of the gathering place, a faint sound wave spread throughout the gathering place. At that moment, many residents hugged their shoulders and shrank into a ball underground in pain, and their bodies kept trembling like sieves.

Nangong Yunfei looked at such a familiar scene and his face changed loudly.
Chapter completed!