At the exit of the biological behavior observation room, with Xiao Muyan's roar, there was another roar, and an alloy wall instantly rose, separating Lin Yu and the other three.

Xiao Muyan didn't understand why Lin Yu wanted to break down the killer, but she understood that something was wrong.

"Didn't you read the warning message in front of the door?" Xiao Muyan looked at Ding Ningcheng and Ye Yi who were dazed, and guessed the key, "The creatures in the research institute are all first-class protection objects and cannot be killed!"

Xiao Muyan's words Lin Yu didn't hear it, the moment the alloy wall was raised, his communication function was forcibly cut off, and there was also a way out of retreat, a hundred meters away from Lin Yu, another alloy wall had already been erected.

In Lin Yu's sluggish few seconds, alloy walls also extended from the transparent walls on both sides of the passage, imprisoning Lin Yu along with the walls in front and behind.

Two small openings opened above the passage, and the two psionic guns inside were silently aimed at Lin Yu.

Xiao Muyan took Ding Ye and the two into the cubicle, anxiously waiting for the outer door to open, while talking about the development of the situation.

"After killing the protected object, the defense system within the institute will lock on to the suspect, if Lin Yu does not resist, then it is fine, once he resists, the defense system will gradually escalate until the target is killed. ”

Lin Yu won't resist, right? Ding Ningcheng and Ye Yi glanced at each other, with a wry smile on their faces, it's strange if they don't resist!

"To what extent can the defense system be upgraded?" Ye Yi asked, the heavy door in front of him was still opening slowly.

"The original intention of the system design was the absolute safety of the research institute, that is, it could kill False Dan Stage cultivators. Xiao Muyan said quickly.

Kill the Fake Dan Period?Ding Ye and the two gasped.

"Of course, this goal is difficult to achieve, but it can certainly cause problems in the middle of the foundation building. Xiao Muyan added.

Ding Ye and the others slowed down the speed of inhaling cool air, but after thinking about it, this power is not something that Lin Yu can bear!

......

Lin Yu muttered softly, and after the communication was interrupted, the lock of the protective suit was also released at the same time, and it slipped off Lin Yu's body.

Lin Yu, who was unrestrained, subconsciously moved his limbs and jumped.

The firearm aimed at Lin Yu moved back and forth, trying to lock on to Lin Yu, making a faint noise.

Although the sound was small, it was like a fuse, igniting Lin Yu, and Lin Yu in the scope suddenly disappeared.

After the firearm paused for a second, a golden fist appeared in the scope that was constantly magnifying.

With a bang, the hole where a psionic firearm was located was blasted out of a fist-shaped pit by Lin Yu, the pit was ten centimeters deep, and the front end of the firearm hidden in it was already twisted and scrapped.

What a thick iron wall!!" Lin Yu sighed, and without thinking about it, he pounced on the hiding place of another psionic firearm.

At the moment when Lin Yu shot, the other firearm fired without hesitation, but unfortunately Lin Yu ran too fast, and the first round of shooting was all in the air, and when the second round of shooting began, the distance between Lin Yu and the firearm had been shortened to less than ten meters.

......

The door to the Biological Behavior Observation Room opened with a gap of about twenty centimeters, and a roar was heard from the iron wall behind it.

Xiao Muyan scolded secretly, hurriedly turned sideways, squeezed the crack in the door and got out, she couldn't wait any longer, Lin Yu had already begun to fight back.

"Ding Ning City, you enter from the nearest entrance. While Xiao Muyan was arranging, she sent the permission to open the door and the map of the observation room to Ding Ningcheng, and at this time, Ye Yi also came out.

"Good. Ding Ningcheng agreed, but he couldn't take action, the crack in the door in front of him was too small for him.

"Ye Yi, take me away!" Xiao Muyan gave another order to Ye Yi.

Ye Yi picked up Xiao Muyan with a princess, and the weight of less than 100 catties was not a burden for Ye Yi.

A route map was sent at the same time, and Ye Yi ran along the route without thinking.

"Ding Ningcheng, you are responsible for opening all the psionic feeds in the observation room to the maximum. Xiao Muyan's voice trembled a little because of the bumps.

The psionic energy used by the defense system in the observation room is the same source as the psionic energy put into the feeding port, and according to Xiao Muyan's thoughts, increasing the delivery of the feeding port can reduce the power of the defense system to a certain extent.

At this time, Ding Ningcheng finally squeezed out the crack in the door and ran non-stop to the other entrance closest to him.

......

In the confined space, Lin Yu turned around to avoid two bullets, the closer he got to the gun, the smaller the space to dodge, at this time, it was impossible to get close to the shooting place without being bulleted.

I was still playing with guns before, but now I have to be played with guns, what a good reincarnation in the world! Lin Yu sighed while carrying the Vajra Jue, and met the bullets that came from him with a golden light.

At the same moment when the bullet hit Lin Yu's right leg, the golden light in his right leg was even stronger, after all, Lin Yu was the first time he was hit by a psionic bullet, so he couldn't help but deal with it with all his might.

If the bullet of the psionic bullet penetrated the flesh and the body of the bullet exploded in the body, Lin Yu doubted that his fate would not be much better than that of an overinflated balloon.

The warhead collided with the golden light, and Lin Yu subconsciously shrank his right leg slightly, in order to ease the force of the impact.

The warhead spun quickly at the moment of contact, but unfortunately, no matter how hard he tried, the warhead with A-grade alloy as the main material still couldn't penetrate Lin Yu's protection.

The strong impact caused the warhead to squeeze and deform, and the moment it reached the limit, the warhead burst open, and the subsequent bullet body released the aura stored in it, which could not invade Lin Yu's body, but the bomb body of the explosion bounced back.

Lin Yu breathed a long sigh of relief, the psionic weapon in front of him didn't seem to be able to do anything to him.

After receiving six bullets, Lin Yu's fist once again knocked the iron wall into a pit, discarding the firearm hidden inside.

Lin Yu, who landed on the ground, did not look relaxed, just because there was an ominous sound around him.

......

There are three ways to stop the defense system of the observation room, one is to directly shut down the director Zhao Zheming, the second is to authorize the closure of the four deputy directors together, and finally, the deputy director personally goes to the control center of the institute to close the operation.

Xiao Muyan chose the third method, the route map she gave Ye Yi was to the control room, according to Ye Yi's running speed, it would take about five minutes to reach the destination.

In the past five minutes, Xiao Muyan had no intention of wasting it, and after some searching, another person was added to the communication group.

"Director Zhang, please authorize the shutdown of the observation room's defenses as soon as possible. Xiao Muyan said.

"What's wrong?" Deputy Director Zhang was a little confused, and then said with some surprise: "How has the defense level of the observation room been upgraded?"

Escalated? Xiao Muyan sighed in her heart, this speed is too fast, can't Lin Yu stop for a while? Unfortunately, at this time, Lin Yu's communication has been forcibly cut off, and he can't be contacted.

"That's right, a mutant dog escaped, and a middle school student who came to visit was trapped by the defense system with it!" Xiao Muyan said the words she had just thought of.

"The defense system will be upgraded, which means that the student will not take the initiative to attack if it is attacked, that is, the mutant dog will attack, which means that the student is likely to be dead. Director Zhang calmly analyzed: "At this time, if you turn off the system, won't you release the dangerous mutant dogs, is this choice wise?"

"The specific situation is not clear, but that student is very important, Director Zhang, you authorize it first, and I will bear all the consequences." ”

"Well, stay safe. Director Zhang hesitated, although he suspected that Xiao Muyan was hiding something, but he still agreed, he and Xiao Muyan had a good relationship, so he could help him.

After the authorization was completed, Director Zhang withdrew from the communication group, Xiao Muyan had a headache, even Director Zhang agreed so reluctantly, can others agree? It seems that to save Lin Yu, you can only tell the truth.

"Thank you, Sister Xiao, for helping Lin Yu hide it. Ye Yi said as he ran: "If you want to save Lin Yu, I'm afraid you still have to tell the truth." ”

"No thanks, you saved me. Xiao Muyan said lightly: "There is only Deputy Director Zhang in the research institute, the top priority is to go out as soon as possible and contact others." ”

......

In the confined space where Lin Yu was, there were a series of soft sounds, and one by one the firing ports were opened, and a handful of psionic firearms poured fire towards Lin Yu.

What the hell am I not doing right? Lin Yu, who still couldn't figure out the situation, didn't move at this time, and let the psionic bullet hit the golden light of the body protector and then bounce away.

The number and power of the bullets have increased significantly, which makes Lin Yu realize the unwisdom of destroying the firearms by himself.

Delaying time and waiting for rescue, Lin Yu's instant decision could not be wrong, but an unexpected situation still happened.

A bullet hit Lin Yu's right chest, and it wasn't until it came into contact with the golden light of the protective body that Lin Yu realized the difference, and the strength and penetration of the warhead's rotation were significantly stronger.

C-grade alloy?Can you deal with the C-grade alloy in the early stage of foundation building?When Lin Yu was suspicious, another layer of wood aura was attached to the warhead, and after a rotation, a small hole the size of a needle's eye was finally opened in Lin Yu's protective body golden light.

The meritorious wood aura continued to stab at Lin Yu's chest, and if he could successfully open the hole, Lin Yu's life would be over.

At this critical moment, the other three parts of Lin Yu's body were also punctured, and this round of attack actually used four C-grade alloy bullets.

The four C-grade alloy bullets were the minimum standard for killing the early stage of foundation building, in other words, the chaotic aura in the four alloy bullets was enough to destroy the internal environment of the cultivators in the early stage of foundation building.

For Lin Yu's internal environment of less than five layers of qi refining, a piece of alloy popping into the body was enough to be fatal.

Between life and death, Lin Yu was in a trance, and some memories suddenly appeared.

Brother Lin Chen and sister Lin Shuang sat in the car with an unorthodox complexion, and her mother touched Lin Yu's head, promising that she would come back after curing her brother and sister, and her father waved goodbye and the car drove away.

Left the lonely Lin Yu and the three servants who were invited to take care of Lin Yu, this was the last time Lin Yu and his brothers and sisters met.

Two months later, Lin Yu received an admission notice from Nandu No. 1 Middle School.

When he excitedly took the notice to his parents, there was a hint of loneliness in his parents' smiles, as if they had not recovered from the blow of losing their child, and there was no way to show their joy.

When this scene reappeared, Lin Yu had a different feeling, and there seemed to be no surprise in his parents' smiles, as if they knew that Lin Yu must have the qualifications to cultivate, was it an illusion? or ......

Lin Yu's brain ached, and he woke up, what is this?

At the same time as Lin Yu's brain pain, cracks opened on the surface of the sphere in the sea of consciousness, and a large amount of spiritual energy gushed out, protecting Lin Yu's body surface while pushing out all the bullets around him.

The bullet warhead that was pushed out fell off, and a large amount of chaotic aura poured out of the bullet body, and as soon as these chaotic aura came into contact with the aura released by Lin Yu, it was like in the human body, and a chain explosion reaction occurred, and for a while, the sound and vibration in the channel continued.

......

Ding Ningcheng, who rushed back into the observation room, had just pressed the button of a feeding port, and a huge shaking came in an instant.

Why did I press the wrong button? I pressed the self-detonation button? The startled Ding Ningcheng stopped moving forward and looked around.

The creatures around them also panicked, the beasts roared, and the creatures with higher intelligence hit some rocks and rockeries, but in fact, they were all side walls of transparent passages.

Obviously, they also know where the boundary is, and the instinct to survive at this moment makes them desperate to escape.

The shaking gradually stopped, the commotion of the creatures continued, Ding Ningcheng suppressed his doubts about himself, and hurriedly ran to the next feeding point, even he didn't notice it, and every button after that, he would hesitate for a second before pressing it.

Ye Yi rushed out of the research center with Xiao Muyan in his arms, and rushed towards the control center, harvesting countless curious glances along the way.

Xiao Muyan tried all the way to get in touch with Director Zhao, who was out of the city, and the two deputy directors who were on leave today, but unfortunately there was no answer.

When she was troubled, Xiao Muyan's brain came with an even more annoying news:

The biological behavior observation chamber defense system has been upgraded to the highest level, and personnel are requested to take necessary measures immediately.

As this news spread, the entire security office was in an uproar, a team of nearly 100 people was rapidly assembled, and the evacuation order of the research center was also being conveyed step by step.

Feeling the commotion around him, Ye Yi sped up without reminding, and the matter seemed to be getting more and more serious.

......

Lin Yu, who was dazed, was unaware of the commotion outside, and as the roar in his ears ended, a miserable scene came into view.

The originally smooth and flat confined space became uneven at this moment, as if it had been completely bombarded, and there was a slight crack in the thick alloy iron wall.

What's worse is that these gaps are not enough for Lin Yu to escape, and even worse is the wreckage of guns all over the ground, which undoubtedly means that a more ferocious attack is coming.

What the hell is going on? Lin Yu is one head and two big, and the questions are accumulating more and more, how can he who thought he was going to die be safe and sound? Although this is a thing to be happy about, what should I do next? Do you continue to wait for a miracle to come?

There was another disturbing noise around him, and Lin Yu was nervously on guard, and nothing happened after a while.

It turned out that the previous round of explosions had caused the terrain to change, and the originally reserved dark openings and passages had been scrapped and deformed, and the more powerful guns were looking for an exit in vain.

But this kind of security is only temporary, in the underground that Lin Yu can't see, the secret openings and passages made of memory metal are being restored rapidly, and it is only a matter of time before the guns see the light of day.