The continuous sound of breaking the air outside the building and the sound of aliens landing on the building made Nangong Qian understand the seriousness of the situation, and she didn't dare to mess around again, she hugged her body tightly against Liu Yuxin. The outside of the building is now full of bird-like xenos, and any movement of them could make their whereabouts visible to them.

Liu Yuxin was quite unaccustomed to the nephrite jade that others couldn't ask for, but she didn't dare to make any other moves for a while, so she could only continue to maintain such an ambiguous posture, looking at the chaotic appearance of Nangong in her arms, Liu Yuxin couldn't help but secretly cry bitter in her heart, and only hoped that these aliens would leave early.

In the distance, another group of xenos flew in, and several groups carried the huge beasts in unison, through the front desk into the back hall, and into a bottomless underground lair. The sentinels who had been hovering above the building landed on the ground and found a corner where to stand, and began to join the xenomorph revelry.

It was getting dark, and the xenos were quieting down, and most of them drooped their heads. Liu Yuxin carefully withdrew her hand, which also woke up Nangong Qian, who had been suffering for a long time, and maintained the same posture for a long time, and there was no initial beauty, and all that was left was numbness and stiffness.

Facing Nangong Qian's suspicious eyes, Liu Yuxin said softly:

"They're asleep."

Nangong Qian sighed, and her body relaxed

"What now?"

She was not able to perceive the situation outside the building like Liu Yuxin, and she had no idea what the situation was like outside.

"Two scenarios. One, wait until tomorrow to escape while they're out. Two, run away tonight while they are asleep. ”

"So which one to choose?"

"Both options have their own merits, but I prefer the second option. The first option seems to be safer, but we don't know the habits of those xenomorphs, and it is not certain whether they will come out of the nest tomorrow, and it is not certain that they will not go out hunting for a few days after a few days of harvesting today. ”

"Alright then, I'll get out of the city tonight!"

Nangong Qian closed the terminal of the office, restored the desk and chair to their original state, and then unfolded her spiritual costume

"Let's go."

In this case, the elevator was definitely not usable, and the two of them chose to go down through the safe passage. When she arrived at the hall on the first floor, Nangong Qian finally saw the whole picture of the xenomorph.

In the hall, dozens of strange creatures with human heads and eagle bodies of 2 meters tall stood scattered in the hall, their heads hanging on their wings, and some of them snoring softly.

Seeing that there was nothing abnormal in the hall, Nangong Qian beckoned to Liu Yuxin on the stairs, Liu Yuxin, who was in charge of remote support, put away the pulse rifle, and gently descended to the hall to carefully avoid those sleeping xenos, handed the pulse rifle back to Nangong Qian and entered the cockpit of King Kong to standby.

Nangong Qian stretched out her right palm and began to count down with her fingers:

Five

Four

Three

Two

One!

Liu Yuxin activated the mecha in the final countdown, and rushed out of the hall before the noisy grinding sound completely woke up the xenomorphs. Behind them, the brightly lit institute building was bustling with activity, with chickens and dogs jumping into a crowd, and even a few angry birds chasing after them, opening their mouths to spit out a long string of fireballs.

Liu Yuxin stopped Nangong Qian's intention to shoot them down, and used King Kong's solid back to block all the ranged attacks for Nangong Qian as the fireball flew. As far as Liu Yuxin has observed, these xenos have a very strong team spirit, and if they kill their companions, it may lead to unpredictable consequences.

Things really did not exceed Liu Yuxin's expectations, after fluttering for a while, the bird-body xenomorph that was not used to acting at night hovered in the sky for a while and then retracted, and entered the hall with a high identity, and the lowly one still fell outside the building as a peripheral sentinel.

"Are we getting out? It's easier than I thought! ”

Nangong Qian, who got rid of the pursuit of the bird's body xenomorph, said excitedly, the speed of life and death just now was indeed very exciting.

Liu Yuxin turned on all the lights on King Kong's body

"We're just getting rid of those flying xenomorphs"

Hearing Liu Yuxin's inexplicable words, Nangong Qian asked puzzled

"What?"

Liu Yuxin did not answer Nangong Qian immediately, but held Gatling behind her in her hand.

According to the performance of the bird-body xenomorphs in the dark night just now, Liu Yuxin was sure that this abandoned gathering point was also accompanied by other xenos that could complement the bird-body xenomorphs, and it was precisely because of their protection that those bird-body xenos were not exterminated in the night raids of other xenomorphs. I believe that I have already disturbed these Night Guardians by making such a big noise, and they are likely to encounter each other soon! Now Liu Yuxin only hopes that those species that have never appeared do not have the characteristic of moving at high speeds, so that at least they can escape if they can't be defeated.

"fluttering ......"

The sound of heavy objects falling to the ground was heard from time to time under the surrounding black shadows, and even Nangong Qian knew that there were more than one kind of mutated creatures in this ruin, so she accelerated her running speed.

"Tom"

A black shadow jumped into the middle of the road where they escaped, and the body more than 2 meters long was lying on all fours, and Nangong Qian did not hesitate to use the pulse rifle in her hand to shoot three shots.

"Dododo"

Three 2mm shellless bullets that came out of the red-hot barrel accurately hit the shadow, knocking it back three steps.

"Hiss~"

The black shadow that was provoked pounced angrily, but was beaten into a broken burlap bag full of holes by Liu Yuxin with a Gatling that had been warmed up.

Under King Kong's searchlight, Nangong Qian saw clearly what kind of creature was standing in the way: it was a human like a skinned frog, with an elongated body covered with a layer of pink muscles. No wonder they don't come out during the day, this body structure of the sun's ultraviolet rays can give them deadly damage!

"This is a ghoul, the toughness and regenerative ability of the body is very good, inaccurately hitting their heart or brain vital point cannot cause serious damage to them, the weakness is ultraviolet rays, high-intensity ultraviolet rays can quickly kill the cells on their bodies, and it is fatal for them to be exposed to the sun for a long time, so they generally cannot be seen during the day."

For these creatures that she had never seen before, Nangong Qian was able to say their names and weaknesses in one bite, apparently thanks to the information found by the terminal flipping up.

"Tom ......"

A few more ghouls jumped onto the road.

"Follow me!"

Liu Yuxin shook the Gatling in her hand, and the bright red laser light was scattered into a small fan, knocking over several ghouls in the way and bursting out of the ghoul encirclement.

But the long highway seemed to lead to hell, and visitors from the abyss, with their sharp claws and terrible appearance, came from all over the place to try to prevent them from leaving the city.

In the battle with the ghouls, in order to avoid being surrounded by many ghouls, Liu Yuxin and the others had deviated from the originally scheduled evacuation route, leaving the main road and constantly walking between the streets.

Surrounded by ghouls, Liu Yuxin and the others have been playing hide and seek in circles with those xenos in the city for several hours, although they have not been harmed, and they are far from leaving the city.

"How can there be so many of them!"

Liu Yuxin was now hiding in a private house gasping for breath, and King Kong was abandoned in a corner by him, even if it was him Liu Yuxin, driving a heavy mecha for hours in a row was a heavy burden.

"It's all my third uncle's fault"

Nangong Qian was also very guilty about the fact that things had developed to this point, after all, the accident was provoked by her family's relatives, and after hesitating again and again, she finally decided to reveal a little bit of the inside story to Liu Yuxin

"At the beginning, my mother successfully decomposed a miraculous serum from the biological samples transferred from the 521 research base, which is usually in normal inertia and does not react with anything, but has a soft spot for the evolutionary factors that spread across the planet after the fall."

"It is capable of disintegrating and devouring evolutionary factors that we have been unable to do with recent technology at breakneck speed, and then begins to disintegrate itself, just as our body's white blood cells are confronted by foreign invading bacteria. My mom was going to go out into outer space and walk into the Earth's atmosphere, and this antibody would disable the entire planet of xenomorphs, so that humanity would be able to reclaim everything from its old scientific reserves. ”

But this plan was opposed by other higher-order evolutionists. They took a different approach and studied how to activate the active nature of serum, so that it actively captures a large number of evolutionary factors for the human body and converts them into its own storage. With the help of others, the breakthrough was made, and the serum was activated, and the effect was just as they expected. For a while, even my mother almost thought that she was overly worried, thinking that humanity had mastered the path of independent evolution and walked in front of the genius girl of Base 521. ”

"But in reality everyone is wrong! The serum that was preparing for the experiment one day got out of control! The Raging Serum showed its frightening side, prompting several test subjects to evolve at unimaginable speeds, breaking through to the high ranks at such a rapid speed that they wiped out the entire research team involved in the experiment and eliminated the security personnel who came to their rescue. ”

Then there wouldn't be so many xenomorphs, would it? How many of those bird-like xenomorphs, plus these endless ghouls, are there? Hundreds? Thousands? Or tens of thousands!

In response to Liu Yuxin's question, Nangong Qian smiled bitterly

"After just obtaining the research results, in order to quickly obtain a large number of evolutionaries to expand his strength, the third uncle has injected the serum for most of the residents, waiting for their independent evolution in the hope of obtaining a batch of extremely large number of evolutionaries. But after the accident broke out, those residents have become a regular hazard who does not know when the explosion will occur. ”

"So your family chose to abandon this gathering place?"

Liu Yuxin picked up the topic of Nangong Qian, the reason why he was like this was because he had deduced the general situation of the incident. Judging from the Nangong family's move to erase the information of the gathering point, there is a chance that the purge plan was prepared at that time, but now it seems that things have changed unexpectedly, and they have not achieved their goal, and even lost a lot of manpower, otherwise Nangong Qian's mother would not have been damaged here. Liu Yuxin interrupted Nangong Qian at this time and avoided the most embarrassing situation.

"I've already used up most of my stamina, and it looks like we'll have to wait here until dawn."

"No way!"

Nangong Qian shook her head resolutely

"When the day dawns, those banshees will never let us go, because all we killed just now were their relatives!"