Boom, boom, boom.

The sound of large troops running was particularly heavy in the underground corridor, making people's eardrums tremble.

There were a few desperate screams and curses from time to time, but they were soon drowned in a whimper.

"Help! Help us!"

The survivors in the subway tunnel rushed up the stairs first, shouting hoarsely for help to the four people standing against the light.

The primary zombies were still very slow to react, their bodies were stiff and slow, and they just instinctively followed the scent of strangers and chased after them.

A survivor fell down while running, and the zombies immediately swarmed him, eating him up in a few seconds, and then dragged Canpo's body to become a member of the zombie army.

The escaping survivors were even more panicked, with all their useless clothes and luggage still behind them.

There is a college student who pushed his girlfriend into a zombie swarm to buy time, a middle-aged woman who desperately tried to protect her husband after his husband was bitten by a zombie, and a middle-aged woman who was trapped in a zombie swarm and tried to stretch her arms to push her young child up the stairs.

young father.

Human nature is vividly displayed in this cold and gloomy world.

Lu Sheng clenched the handle of the knife, and the electric arc instantly covered the entire blade.

The remaining survivors rushed out of the subway entrance immediately, leaving the group of staggering and sluggish zombies, all aiming their sights at Lu Sheng and the others.

"Ooooooooo."

The instinct of hunger and the delicious and alluring smell of living people lured the zombies towards Lu Sheng and the four of them.

In the tense atmosphere, Xiao Yu's lantern fruit emitted an even more dazzling light.

With gray skin, faintly beating cyan blood vessels, and the zombies that have not yet rotted, they look much cleaner and more beautiful than in the previous life.

Clang!

When the Tang sword was unsheathed, the sound was like breaking ice.

Cold light intertwined with arcs of electricity, splashing into a smelly blood mist.

The zombie rushing in the front row fell down, and his body was immediately eaten to pieces by the zombies rushing up from the back row.

Zombies have no sense of pain and no ability to think. Even if only half of their body is left, they will lie on the ground and squirm towards the breath of living people.

Lu Sheng's Tang sword was like a jade dragon entering the sea, tearing a bloody path through the endless group of corpses.

Xu Yi's nail gun penetrated the soul, and Xiao Yu and Sun Tiantian also waved their weapons vigorously, killing the zombies who were lucky enough to avoid the sword's light.

"There are more and more zombies, and we can't kill them all." Xiao Yu and Sun Tiantian were already sweating profusely.

Although the zombies that had just transformed were as fast and powerful as the five scum, they couldn't stand up to the crowd.

Although the four of them were chopping melons and vegetables with sparks and lightning all the way, chopping zombies was also a physical job. Chopping one person at a time rushed up to a pile, and it wouldn't take long for their physical strength to keep up.

The subway corridor is already a mountain of corpses and a sea of ​​blood, but there are still a steady stream of zombies coming up from the depths.

"The three of you retreat to the exit first." Xu Yi pinned his glasses in his shirt pocket and fired five shots from his nail gun, hitting the heads of the zombies closest to Lu Sheng.

Lu Sheng and Sun Tiantian and Xiao Yu looked at each other, wondering what Xu Yi was planning.

"hurry up."

Xu Yimo's short hair was wet with sweat. Perhaps it was because he took off his glasses. In addition to his usual nobility and elegance, his whole person also added a bit of evil murderous intent and tension.

Lu Sheng, Sun Tiantian and Xiao Yu quickly retreated to the subway entrance, while the stumbling zombies rushed towards Xu Yi.

Xu Yi jumped onto the small pavilion next to the ticket gate and led all the zombies to a small place.

The junior zombies didn't have the ability to climb and jump yet, so they could only gather together next to the small pavilion and stretch out their hands to catch Xu Yi.

Seeing that almost all the zombies were gathered together, Xu Yi took out a special sealed bottle of about 500ml.

Xu Yi pulled open the top button of his shirt and threw the bottle at the group of corpses.

The bottle exploded among the zombies, and the liquid in the bottle splashed everywhere. The bloody wounds of the zombies came into contact with the liquid, and a violent chemical reaction immediately occurred.

The wound burned quickly, and the zombies were unaware of it, and the flames spread crazily among the zombies like a prairie fire.

The air was filled with the smell of burnt fat and charcoal fire, and the thick and choking smoke blurred the sight of the junior zombies. They were pushing and trampling each other like headless flies.

Xu Yi took advantage of the chaos and jumped down, stepping on the heads of a few unlucky zombies and standing out from the heavy surroundings.

Behind him, as the fire spread, more zombies were drawn into the sea of ​​​​fire. The flames licked the skin, clothes and hair of the zombies, and the sound of flesh exploding could be heard from the restless group of corpses.

Xu Yi turned his back to the fire and walked out of the subway calmly.

The fire was rising behind him, and the restless corpses gradually lost their sound in the raging fire, leaving only charred black coals on the ground.

[Item Obtained: High Wattage Headlamp]

[Item obtained: Physical recovery potion x10]

[Items obtained: 8 whole Yangcheng Lake hairy crabs in a gift box]

[Item obtained: Lina Belle limited edition genuine keychain]

[Item obtained: Limited edition aj11 (38 size)]

[Additional rewards: 180 primary crystal cores, 40 intermediate crystal cores]

…

The system prompts for obtaining new items rang hundreds of times in Lu Sheng's head, which made her ears numb. She could not even hear the voices of Xiao Yu and Sun Tiantian talking.

In the most conspicuous position of the space, the newly obtained items were piled up into a small mountain, and there were also a large number of shiny crystal nuclei.

"6!"

Sun Tiantian and Xiao Yu gave Xu Yi a thumbs up and asked curiously, "What's in the bottle? One bottle can deal with so many zombies."

"Nitric acid." Xu Yi put his half-rimmed glasses back on and brushed off the dust on his cuffs. "The strong oxidizing properties of nitric acid will generate a lot of heat when it comes into contact with the fat of zombies."

"I was the first to oppose Teacher Xu when he gave up chemistry and became a doctor. If I had known such a low-level chemistry teacher earlier, would I have been delayed in the college entrance examination for chemistry?" Xiao Yu joked with a smile.

"6!"

Lu Sheng couldn't help but hit 6 to the public screen.

Learn mathematics, physics and chemistry well and travel all over the world!

The four of them entered the subway station again. The underground corridor was filled with a pungent burnt smell. There were piles of zombies near the ticket counter, and occasionally a few lone ones fell just a few meters away.

"The crystal nuclei are in the zombie's brain. Be careful when digging. Some crystal nuclei may only be the size of a grain of rice."

After Lu Sheng explained the key points of digging crystal cores to Xu Yisun Tiantian and Xiao Yu, the four of them divided their areas and started digging for crystal cores.

It only takes ten minutes to kill zombies, but it takes more than half an hour to dig out crystal cores. Not all zombies have crystal cores in their heads, it all depends on luck.

There were so many corpses that by the end of the excavation, the hands of the four people were exhausted.

Sun Tiantian and Xiao Yu dug the hardest, holding a small dagger and digging, just like two brain-mining tools without emotion.

"It's all here."

Xiao Yu panted and handed a bag of crystal cores to Lu Sheng.

After a cursory glance, there were hundreds of crystal nuclei, many of which were of high quality.
Chapter completed!