Is it dazzling?

No! Li Ye's eyes suddenly lit up, the flesh monster did have a small piece of the surface of its body, and it actually condensed a thin layer of frost, and even had a tendency to gradually expand.

Why?

Even the bursting crossbow bolt is difficult to cause too much damage to this monster, and the super undead body that can heal almost in the blink of an eye, why is there such a strange phenomenon?

Soon, Li Ye saw that on the side of this corridor, rows of pipes were intricate, probably because of the explosion caused by the bursting crossbow arrows he shot one after another just now, so that many pipes were bursting, and some white gas was spewed out of them, and he hadn't noticed it just now, but Li Ye felt it at this moment, and the temperature here seemed to be much lower than just now!

Originally, the successive explosions did not make him feel that the temperature had dropped, but now, it was obvious that he had a cold feeling.

"Nitrogen!"

Those white gases are a phenomenon caused by the vaporization of liquid nitrogen! At the same time, the temperature of the whole corridor began to gradually decrease, which was also caused by the vaporization of the liquid nitrogen in the pipeline due to the rupture of the pipeline.

"This thing is afraid of freezing!"

A flash of realization flashed in his mind, and he knew that since the system had a task to release a reward for killing the monster in front of him, it was impossible to really be immortal! It's just that everyone didn't find its weakness before, and blindly drilled into the tip of the horns.

Sure enough, under the nitrogen gas that spewed out, the flesh monster's whole body slowly added a layer of white frost, looking like it was wearing a layer of clothes, and its movements gradually slowed down.

Clang!

With a crisp sound, Li Ye directly held the mountain knife in his hand and slashed down at a pipe beside him!

Suddenly, the pipe broke, and countless white gases erupted from it, the temperature was extremely low, and even Li Ye accidentally didn't retreat immediately, his arm was sprayed some, and there was serious frostbite in an instant!

"What a perverted low temperature!"

Seeing the frostbite on his hands, Li Ye's face was also a trace of horror. However, he quickly knew what to do next, and simply swapped the last burst bolt for a normal one, and shot towards the intricate pipes on either side of the hallway.

For a while, liquid nitrogen gas with extremely low temperature was spewed out everywhere in the entire corridor, as if in an instant, it had entered the cold winter wax moon, and even a trace of ice crystals appeared on Li Ye's eyebrows and hair.

When you open your mouth and exhale a breath, you can see that there are signs of condensation immediately, and you can imagine how low the temperature has been at this moment.

And at such a low temperature, the flesh monster really moved more and more slowly, and even began to move clumsily.

From time to time, you can see some ice cracks on the surface of the flesh monster's body, shattering into pieces, but it is quickly re-frozen.

Just when Li Ye's limbs were almost stiff from freezing, finally, the entire body of the flesh monster in the naked eye was almost stationary, like a huge ice sculpture, stopping there.

And at this moment, it was only two or three meters away from Li Ye's location, and it could be said that if he hadn't discovered this weakness, Li Ye might have already become a part of his body at this moment.

"Not dead yet!"

At such a close distance, Li Ye could take a closer look at the culprit who caused the death of everyone in the entire prison and even the mysterious No. 7 Research Institute below.

There are no obvious facial features, and there are no limbs, like a pile of flesh, extremely disgusting. Even on the surface, you can see a lot of things that look like human eyeballs, which is enough to make people with dense phobias dizzy when they look at it.

Even if it is completely frozen, there is still a foul smell at this time, and it is enough to be so close that people will be directly fainted.

In the ice sculpture, the body of the flesh monster is still beating slightly, as if it has a heart, but Li Ye is a little unconvinced, just such a monster who is not a ghost or a ghost, can still have a heart?

There is no reward for the completion of the side quest prompted by the system, and it is obvious that the flesh and blood monster in front of him turned into an ice sculpture has not been killed, but is only temporarily trapped.

"It's not dead."

went around to the other side, in fact, Li Ye's task had been completed at this time, and he delayed for more than three minutes, so he could leave directly. But for some reason, looking at the huge ice sculpture frozen in place, an amazing idea burst into my mind.

"If I can kill it completely, I'll be rewarded with 5,000 Game Points."

5,000 game points, even if you complete the entire quest, it is only 3,000 points! It can be seen how generous the reward for killing such a monster is.

At the same time, it also shows that this thing is very difficult, and it is even above completing the entire copy.

To kill or not to kill?

The point is, how can you kill it completely.

The next moment, Li Ye raised his hand crossbow, and the last burst crossbow arrow was once again useful!

Sou!

An arrow was shot, in fact, Li Ye didn't have much confidence in his heart, maybe it was just a vent for him to confirm his inner guess.

Rumble!

The moment the huge ice sculpture exploded with a burst crossbow arrow, it was like a chain reaction, and it exploded into countless pieces in an instant, only to see pieces of flesh and blood ice scattered all over the ground, and one of them even rolled down to Li Ye's feet.

Looking down, the flesh and blood that was frozen in it actually began to beat violently, as if it wanted to struggle and rushed towards Li Ye's body.

Shocked, he directly used his crossbow to block the blood clot and bounce it on the wall, like a mess of mud, extremely disgusting.

And if you look closely, as the ice sculpture was blown up, the flesh and blood that had been blown into countless pieces seemed to have regained their vitality and wanted to reunite together, but because the temperature was very low, and most of them were sealed by ice, the speed was not as fast as just now.

"What's that?"

also took advantage of this gap, but Li Ye saw a detail that he hadn't noticed several times before.

In the midst of countless pieces of flesh and blood, a beating heart, as if it had life, after falling to the ground, frantically trying to attract the shattered flesh and blood around it, in a short time, I saw a few pieces of flesh attached to the heart, and even a disgusting eyeball.

"Is this the monster's only Achilles' heel?"

A heart! A disgusting-looking but weird heart!

Almost without hesitation, Li Ye shot an arrow towards the heart, and the sharp crossbow arrow was directly inserted into the heart, and suddenly Li Ye seemed to hear a piercing scream, like a desperate roar, and at the same time, the flesh and blood around him who originally had independent consciousness actually stopped moving at that moment.

Whoosh!

After a few arrows in a row, Li Ye would not be soft at this time, and since he knew the biggest Achilles heel of the flesh monster, he would not let go of this best opportunity!

Blood flowed out of the heart, but it was not the bright red of a normal person, but a white liquid as thick as milk, exuding a pungent fishy smell, like an old corpse, which made people want to vomit.

[Kill the XF Virus Variant and reward 5000 Game Points]

Sure enough, I remembered the voice of the system in my mind, and it was the first time that Li Ye felt that this voice was so beautiful!

This is not all, before he can show his surprise, the system's prompt appears again.

[Discover the XF Virus Mutant Heart, complete one of the requirements of the XF Virus Mutation Research Side Quest, Mutant Heart, and reward 1000 game points]

Mutant heart? He actually touched a hidden side quest by mistake? Obviously, though, this is only a third of the requirements for completing this one hidden side quest.

Sure enough, after a closer look, there is finally some more information about this hidden side quest.

[Hide side quests, find the cause of the XF virus mutation, collect the mutated organs on the mutant, the current collection completion rate is 35%, and collect the mutant heart]

After carefully reading this hidden side quest, Li Ye not only did not have any joy on his face, but on the contrary, his complexion changed greatly!

"XF Virus Variant! Not good! There's more than one monster! ”

The task was to collect the mutated organs on the mutants, and now that he had found one that was a third of the way through, it was clear that there were two more that he needed to find!

The only explanation is that there are at least three of these almost hard-to-kill monsters in the entire dungeon! Three monsters spawned by XF virus mutations!

At this time, he was not in the mood to be happy that he had been rewarded with 5,000 game points and opened the hidden side quest, but thought of another guess that made him tremble.

There are three mutant monsters, where are the other two?

The whole prison, almost unseen, the only explanation!

Inside Research Institute No. 7!

"Damn it!"

Why have all the mutant monsters already appeared in the prison, and Research Institute Seven still has to seal the entrance to the gate? Whether it is a human or a decision made by the Institute's intelligent system based on judgment, the only explanation is that there are two terrifying mutant monsters in there!

The closure of the research institute is not to prevent others from invading, but to prevent those two monsters from escaping!

On the ground, the mutant heart was like a deflated ball, and its entire volume had shrunk by more than half, becoming crumpled like a puddle of rotten meat. As for the flesh and blood that exploded from the mutant's huge body, it was rapidly decaying at the moment.

Obviously, the weakness of the mutant is the mutated organs in the body, which will completely die once destroyed.

Although this is a mission item, Li Ye has nothing to take away, and what he is more worried about now is the trigger and the others.

In the research institute, if there are really two mutant monsters, once they successfully destroy the entrance gate to enter, is it not equivalent to a sheep entering the tiger's mouth?

The four-eyed man and his two companions are okay, if they die, they will die, but the three of them, the black cat and the little girl, make Li Ye unable to put his heart down, and the vaccine! Also in the institute!