When Nangong Yunfei and the others rushed to the central control room of the laboratory, it was already empty, except for a shocking blood-colored drag mark, which stretched from the corner of the wall to the broken vent in the center of the ceiling, and there were still uncoagulated blood beads dripping down on the uneven edge that had been violently cut. The two elite team members turned on the tactical flashlight and swept back and forth at the dark hole a few times, and nodded to Nangong Feiyun to confirm.

It seems that the xenomorph is acting through the ventilation duct, which is a problem!

Due to the obstacles within the facility, it was impossible to locate the xenomorph without specialized equipment.

"Open the monitoring log."

A security officer responded by manipulating the console for a moment, bringing up the most recent surveillance log from the database. Nangong Yunfei saw the bloody experiment, saw the rampage of the experimental subject, and also saw the researcher who made crazy moves out of desperation. Probably because the body's metabolism is too fast, the mutant is more able to eat than it seems. The xenos in the surveillance footage are eating the researchers trapped in the laboratory one by one, leaving only two noses twitching a few times towards the large holes in the sky, and tracing back to the vents of the laboratory's circulatory system, from which it smells the same smell as the food just now. It leaned low and poked its head in, then retracted a moment, flicking its sharp claws dissatisfiedly, opening the hole in the pipe wider and burrowing it throughout.

"Mobilize this control room again"

The screen time of the display control room returned to ten minutes ago, and the person in charge of the project who stayed behind found that the xenomorph had escaped through the ventilation duct from the surveillance, and after pacing back and forth anxiously for a few circles, he finally sounded the evacuation alarm and reported this serious experimental accident to his superiors through his own communication terminal.

A few dozen seconds after he lowered his communicator, several glittering claws pierced the not-so-thick alloy plate through the vents in the ceiling, making a huge gap in it, and the skin-skinning xenomorph jumped down from it to block the panicked leader.

In the face of the xenomorph's approach, the project leader pulled out the laser pistol used for self-defense and fired repeatedly, the laser beam burned and dissolved several large holes in the xenomorph's body, but the xenomorph did not care at all, and the blood-colored flesh on the body quickly healed those wounds without a trace.

In the end, the xenomorph killed its prey without any suspense, and compared to the previous times when the body was cut apart due to excessive force, this time it made very rapid progress - at least it kept its prey intact. Before Nangong Yun flew over, the xenomorph who was eating suddenly raised his head and listened intently for a while, and then dragged his prey back to the ventilation duct.

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

Nangong Yunfei came to a very bad conclusion after reading all the records, maybe the difficulty of this hunt will be beyond his imagination.

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

"We need equipment and people to support us."

"Yes, Director. Xenos are now circulating throughout the institute through a circulatory system, and we are no longer able to contain the situation on our own, and we must install monitoring equipment at every critical point and have sufficient defenders to prevent the situation from deteriorating. ”

The commander of the elite group was sensible enough to make his point of view clear and did not believe in the force of his squad.

After exchanging views with the squad commander, Nangong Yunfei redeployed his defenses, making sure to limit the range of movement of the xenos to the underground.

Under the perfect system, the defense circle is shrinking, and the range of xenos that can move freely is becoming more and more limited, and often once they emerge, they will be quickly caught and surrounded by many elite evolutionaries, and things seem to be developing on the better side, everyone believes that it will not be long before that xenomorph will be ambushed, after all, the power of a research center is not something that one or two high-level xenos can fight.

"It's been a long time since we received reports of xenomorph sightings."

Nangong Yunfei repeatedly scrutinized the mistakes in his arrangement. Seeing that victory was in sight, Nangong Yunfei felt a strong uneasiness in his heart, it stands to reason that each node of the base has relevant equipment and personnel, why hasn't the xenomorph been caught by any personnel and equipment?

"Maybe it's lurking somewhere?"

One of the team members said uncertainly

Is it lurking? Wrong! This xenomorph has an excellent sense of hearing and smell, and can detect their deployment from very far away and act accordingly, slipping through the cracks in the encirclement network they have arranged, and the initiative of this new xenomorph itself makes it absolutely impossible to be forced to lurk.

So where exactly did it go?

With the increasing number of armed forces stationed underground, the entire underground laboratory has no surveillance blind spots, and it is indeed a very puzzling thing that the appearance of xenomorphs has not been witnessed for a long time.

No, it's not! There's still a place in the lab where you can't have people!

In the deepest part of the subterranean area, where a sealed creature originating from Base 521 is housed, and the ultra-low temperature currently forces it to remain dormant, which is the biggest secret of the entire base. In order to avoid accidents with this biological sample with special skills, the place surrounded by alloy walls not only did not arrange manpower, but even the monitoring was not connected to the research center network and integrated into the security system.

The defenses of the basement laboratory were not properly arranged, but instead showed the xenos a way to go!

But don't be that way, it's much worse than the xenos being released from the building! Whether it was an ignorant xenomorph destroying a precious specimen, or accidentally damaging a functioning dormant device causing the dormant creature to reviverate, it would be an unbearable disaster for the entire research center.

Although theoretically, it was impossible for that xenomorph to break through the overlapping alloy wall to reach anywhere, but he was not at ease, Nangong Yunfei still connected to the security system of the secret room through his own terminal......

The ghoul in the chamber slumped in front of a destroyed hibernation pod, its head pressed against the cold metal floor, not daring to move.

After the alarm sounded, it was surrounded and suppressed by well-equipped soldiers every time it appeared, but fortunately it was quick to react and was not too harmed.

I came to the outside of this secret room by myself following the loopholes that appeared at the junction of the defenses, and I was looking for a way to get out in the surrounding area, and suddenly I had the idea of entering it no matter what. After digging the alloy wall in vain, it occasionally discovered that the foundation of the alloy room was not as solid as the wall, so it turned itself into a gopher, digging a tunnel from the bottom to the secret room, and after entering the secret room, it obeyed the call of its heart to destroy the dormant equipment.

It didn't take long for the center of the chamber to sit in the sleeping cabin, which was fixed to a metal platform by many pipes and instruments, and a beautiful woman with a snake head and body, her eyes as deep as the starry sky, so that the self who looked at her was unconsciously lost in it.

The mysterious creature flicked its head, and the green hair on its head that wriggled like a snake suddenly stretched out, binding the ghoul in front of him and stabbing the end into its body, and the ghoul's originally chaotic instinctual brain suddenly came to its senses, and there were many more things that he had never known or even imagined before—including his own name.

The mysterious creature reopened his mind quickly understood his position, and lay on the ground to offer his submission to the powerful superior.

And as soon as Nangong Yunfei turned on the monitor with the terminal, what he saw was a scene that made him burn inside

Medusa, she's awake!

Even if all the armed forces of this research institute are poured into it, it will still be impossible to destroy the legendary creatures!

"Inform all the people to retreat! And close all the upward passages after we exit the underground. ”

"Retreat? Retreat to the ground? ”

The captains of the teams who didn't know why they couldn't understand why the director gave up this low-hanging victory, and suspiciously confirmed the order to Nangong Yunfei.

"It's to evacuate the people involved from the gathering place, start now!"

Although the people in charge after reviewing the order were shocked, the good discipline allowed them to carry out the orders of the ***** of the base without the slightest discount, and the entire gathering place was busy.

Nangong Yunfei evacuated the underground laboratory as the last group of members, and as soon as he reached the surface, Yu Peipei greeted him

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

At this time, Nangong Yunfei's face was extremely ugly, and he glanced at the super-thick cover that was slowly closing with a little worry, and said in a weak voice in Yu Peipei's ear:

"She's awake! This gathering place is coming to an end!"

"Ahh

As one of the absolute high-level leaders of the gathering place and the wife of Nangong Yunfei, Yu Peipei knew very well that there was a legendary creature codenamed 'Medusa' sleeping in this experimental center, and her original serum blueprint was derived from her body.

Judging by the shackles the base has placed on the creature, there is absolutely no friendship between them and her. Even if she didn't care about the excessive research done by the Institute during her dormant period, they wouldn't be able to coexist together.

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

Yu Peipei, who knew the seriousness of the matter, immediately turned around and prepared to pack up the research materials for a period of time and take them away, which was the result of his own painstaking research, and it might even be related to the fate of mankind.

Nangong Yunfei grabbed her

"It's too late, Medusa may be able to recover when, there's no time to worry about that! As long as your people are still around, the research materials can be restored at any time. ”

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

The withdrawal of the Nangong family's forces from the gathering place also caused a certain amount of panic, and the worried residents of the gathering place inquired about each other's news, speculating about the reason for the sudden retreat of the Nangong family, and there were also many clever little clever ghosts who smelled a different smell from it and followed the Nangong family's team out of the gathering place.

Just as their convoy began to move away from the gate of the gathering place, a sound wave spread throughout the gathering place, and many residents hugged their shoulders and shrunk into a ball of pain in the ground, their bodies shaking like chaff.

Nangong Yunfei looked at such a familiar scene, his face changed and he issued an order loudly

"Stop worrying about those baggage, speed up the evacuation!"