"Open the door." Li Yan stood in front of the iron gate, took a deep breath and said.

"You have to enter the passage within five seconds, and then pass through within thirty seconds, or the door to the lab won't open......"

Xiaoxue said suddenly.

"I know it." Li Yan said with a move of his mind, the dragon slayer disappeared from his hand, he could have called Xiao Shui to go in together, but Xiao Shui is a zombie, if the system identifies her as a zombie, it will be a big trouble if she is not allowed to come out at that time, although it is not necessarily, but he can't afford to take this risk.

"Ding!"

With a crisp sound, the closed door opened, and Li Yan jumped in without thinking about it. "Bang", the door behind him was closed, but at this moment he had already watched with his head down and sprinted forward with all his might, and after running for a while, he reached the end, the passage didn't seem to be long, and in front of him was a silver gate similar to before, he looked at it, and wondered what Xiaoxue's prompt meant.

Looking sideways in confusion, he was so frightened that he almost screamed.

On both sides of the culture liquid is actually the culture liquid, and in the culture liquid, a zombie with a hideous face is soaked in it, motionless, running through the entire passage, isolated one by one with glass in the middle, I don't know whether the road is dead or alive.

"The door opens in five seconds, and the disinfection room is free of viruses, but in order to avoid the virus leaking, you only have two seconds to pass through the door of the laboratory."

Xiaoxue's voice came from all around.

Li Yan looked up and saw a camera and a loudspeaker overhead, and he hurriedly walked to the door.

"Ding!"

There was another crunch, and the door in front of him opened, and he jumped in again.

"Enter the laboratory, disinfecting..."

As soon as he entered, there was a sound of system prompts all around. But it's not Xiaoxue's synthetic female voice.

As soon as the words fell, there was a "whoosh", and some liquid suddenly dispersed from the top of his head, dripping on his neck with a cool feeling, almost at the same time, a trace of white gas spewed out from his position below the knee.

Li Yan didn't care too much, he didn't have to guess that he should be disinfecting him at this time, and as soon as his mind moved, the dragon slaying knife reappeared in his hand. Xiaoxue said that it was only two seconds. In other words, there is only one chance, if something stands in the way outside the door, delaying even a second, all of them can only wait in this research institute to be blown to ashes.

Soon, the iron door in front of me opened.

Just opened. A choking fishy smell rushed in, and the disgusting smell made people's stomachs cramp. But he wouldn't have time for that. Carrying the dragon slaying knife, he rushed in with a force under his feet.

"Ugh! Yikes! ……”

As soon as he rushed in, he felt a strange cry all around, and when he stood still, the cold sweat couldn't stop falling down.

Around him, several bucket-thick insects arched their bodies and stared at him, these insects were not much different from those on the top of the cliff of the hanging coffin, they should be the mother worms of the corpse crystal. But one size larger than the others, the top of the insect's head split into several petals, each covered with tiny fangs covered in slimy liquid. The mouth kept shaking, and the sound should have come from there.

As soon as he could see it, the bugs even writhed and pounced on him.

"it!"

Li Yan couldn't help but burst into a foul mouth, and the dragon slaying knife slashed towards the nearest corpse crystal mother worm. Unexpectedly, the huge body of the insect quickly shrank back and dodged.

Grooving, flexible fat man!

He cursed in his heart, and his whole body fell to the side, and a carp rolled and dodged.

A gust of wind swept over his head.

"Bang!"

Suddenly, where he had been standing, the worm's entire head hit the ground, and the iron floor was smashed directly into a large pit.

Li Yan stood up abruptly after turning over, and couldn't help but gasp when he saw the big pit, the floor was a solid iron plate of forty or fifty centimeters!

The insects turned around sharply, their mouths trembling and looking at Li Yan again.

Li Yan couldn't help but take two steps back, and the hand holding the dragon slaying knife clenched a little tighter, the situation was not good!

At this moment, his body was stunned, his waist seemed to have touched something, and when he glanced at it, he saw Song Yunfei's head turned over, but he didn't have time to care about the churning nausea in his stomach now, but was inexplicably excited......

"......"

The mouths of the corpse mothers twitched, and it looked like they were about to attack again.

Li Yan turned around suddenly, and quickly picked up a test tube behind him, fortunately there was a plug on it, and after he got it, he quickly stuffed it into his arms, and at this moment, those insects pounced on him with a gust of wind, completely unavoidable.

"I'm sorry, Professor Song."

Li Yan said a word silently in his heart, and without the slightest hesitation, he directly picked up Song Yunfei's body next to him and walked towards the flying insects.

"......"

The huge insects let out a roar of excitement, and their mouths all bit down on the flying corpse, and let out a cheerful cry. After a burst of rags, the clothes on Song Yunfei's body were directly shattered, revealing that the things inside were actually insects entangled with each other, but they were several sizes smaller than those outside.

"Sure enough."

Taking advantage of the effort just now, Li Yan bent down from under those insects and ran to the exit of the laboratory gate, the door opened suddenly, he looked at the familiar scene and muttered, followed by a dodge and jumped into the disinfection room, and the door behind him quickly closed.

"Disinfecting ......"

A familiar voice came, and the sprinkler head on the top of the head repeatedly began to spray the disinfectant liquid again, and the soles of the feet also began to spray white disinfectant gas.

Finally, there was no danger, Li Yan couldn't help but let out a sigh of relief.

"Bang!"

At this moment, there was a sudden fierce impact on the position of the door behind him, and the iron door was directly knocked into a big bulge.

"Bang! Bang! …”

There were several violent crashes in a row, and the bulge on the iron gate became bigger and bigger, but the impact had no intention of stopping, and I was afraid that it would not take a few clicks to break the opening, and even if it didn't break it, the gate would probably be blown away.

"Quick, quick..."

Li Yan shouted hurriedly in his heart, his eyes staring at the direction of the gate in front of him.

But the door, I don't know what the road is for, but it is motionless at this moment.

And at this moment, in the main room of the research institute, Sun Congsheng had been arguing with Xiaoxue for a long time.

"Why don't you let him out? What did you just promise about? Could it be that the machine is also deceiving people these days?! Sun Congsheng was already a little almost roaring.

"The highest goal of Xiaoxue's execution is to develop antibodies, but the second goal is to prevent the virus from spreading, and now the system has detected from the battle just now that the person who entered the laboratory cannot resist the attack of the corpse crystal mother worm, and the system will start the self-destruction procedure in advance..."

"Wait! Why do you say that he can't resist the corpse crystal motherworm? You rely on those battle scenes just now?! Sun Congsheng continued to roar.

"In terms of quantity, the existing walls of the passage can't resist the attack of the corpse crystal mother, if he can't solve all the corpse crystal worms, any corpse crystal worm escapes from the research institute, this is unacceptable to Xiaoxue......" Xiaoxue still analyzed very "rationally".

"Dig a slot!" Sun Congsheng finally couldn't help but burst into foul language.

Niu Geng, Lin Qian and Li Yin looked at the computer screen in a daze, and didn't know what to say, on the screen, Li Yan was anxiously slapping the iron door with his hand, but the door did not move, and the iron door behind him had been hit into potholes, and it could be knocked away at any time.

"Xiaoxue, how many minutes does it take for you to analyze the antibody components and synthesize the final antibody?" Sun Congsheng said as he looked at the number below the screen that jumped from 0:31:50 to 0:21:50.

"Twenty minutes ......," Xiaoxue replied crisply.

Sun Congsheng's pupils tightened suddenly, and then said quickly: "You as a system must obey the first principle, now I order you to open the door, and then we will guard the passage to prevent the corpse crystal mother worm from escaping, if it can't be solved, you can continue to self-destruct!" ”

"Xiaoxue refuses to ......"

The four cold words have already expressed Xiao Shui's answer, and at this moment, the number at the bottom of the screen has jumped to 0:21:10. (To be continued......)