In the evening of the same day, Shashi District 3 Black Street Entertainment City, Central Square Candy KTV.

"Is this it?" Lang Hua asked quietly.

Yang Xiaoxiao nodded affirmatively and replied, "It won't be wrong." After the 'Advent Day', the strongholds of the Asahisō and the Blue Dragon Society were set up here. ”

The improvised horse rejection and obstacle railings around it are still intact, indicating that after walking towards Sandao and his party, this place has not been invaded by wandering corpses. So...... Will there still be anyone in there now?

Lang Hua nodded and motioned for the second daughter to retreat, and took the lead in pushing open the door of the front hall.

"Squeak."

In the damp and gloomy weather shrouded in black fog, the door shaft rotated sluggishly, and the strange sound was not loud, but it made people's scalps tingle.

Without Lang Hua's instructions, the three of them automatically separated and searched deep into the KTV along different routes.

……

Ten minutes later, Lang Hua and the three met again in the back hall.

He tilted his head and asked, "Sister Qian, Xiaoxiao, how are you doing over there?" ”

Yang Xiaoxiao shook his head and said, "No, neither there are black corpses nor living people." ”

Lin Qian also nodded to indicate that the situation was consistent.

Lang Hua said with a smile: "All the staff went out to take my life, but this three knives are desperate." ”

"Once you lose, you will lose everything." Lin Qian added with a chuckle.

"If the head of the knife can escape, there is naturally a chance to make a comeback." Lang Hua sneered and continued, "It's a pity, I didn't want to spare his life at all. ”

"Brother Lang Hua is the most powerful, no one can compare!" Yang Xiaoxiao's tone was very serious and serious, which made Lin Qian smile.

"Don't be poor."

Lang Hua tapped his finger on Yang Xiaoxiao's forehead: "Let's talk about the details of this KTV, and see if there is any useful information missing." The 'Black Mist Vortex' was slashed at the three swords, and it was heavily defended before, so there was no reason why the treasure would be elsewhere. ”

"Ah, why do you ask me?" Yang Xiaoxiao blinked innocently.

"That's right", Lin Qian smiled, "I heard Xiaoxiao your tone is brisk, and you look confident. Got a clue? ”

Lang Hua said expressionlessly: "In the past two years, haven't you secretly played with your friends all night many times?" ”

Yang Xiaoxiao was stunned, and her face was a little stiff.

She said to herself: Do you know this? What else do you know?

If it weren't for the evidence that Lang Hua was immersed in refining his body every day, she would almost suspect that she was being followed and monitored.

"Oh. Many times. Hearing this, Lin Qian let out a long tail note.

She teased: "Hey, hey, Yang Xiaoxiao, a good student...... Where would you come to such a place? It's all night, Xiaohua, you're really joking. ”

"Okay, okay, I'll say." Yang Xiaoxiao immediately forged, "I heard the waiter here say that there is a small ice storage under the KTV for storing edible ice. ”

Yang Xiaoxiao covered her face with her hands and wept in her heart...... Yes, the image of a well-behaved baby who has worked hard has collapsed.

Maybe this setting was never established in the first place. These two old fritters...... 555~ I don't have the face to see people.

"Underground cold storage?" Lang Hua realized, "That's it, go!" ”

Walking through the messy bar and blood-stained promenade, the trio could almost imagine the apocalyptic scene of Advent night.

It's not that difficult, and when a disaster strikes, every corner of the world is no different, it's nothing more than chaos and blood. But entering such a place will make people feel more immersive.

At the end of the promenade, a downward staircase appears, leading to a small cold storage on the basement level of the Candy KTV.

In the corner of the cold storage, there is a strange thing in front of the three of them that keeps spinning on its own, resembling a miniature tornado. In front of them was what Lang Hua called the "Black Mist Vortex", but the scale was really miniature.

Compared with the deep and gloomy black fog, this "black fog vortex" is only as tall as an adult's calf, rotates at a constant speed, and has a diameter and width of less than 30 cm, which is very slender and cute.

Yang Xiaoxiao leaned over to look at it, and couldn't help but reach out and touch it to take a look.

"Smack", Lang Hua's eyes were quick, he reached out and knocked off Yang Xiaoxiao's little paws, and said, "Don't touch things that don't know the roots!" ”

"Ah, it hurts." Yang Xiaoxiao puffed out her cheeks aggrievedly.

She complained in hatred: "The ruthless warlord leader, the representative of the evil forces who don't know how to pity the fragrance and cherish the jade. ”

But Xu is voice was a little small, and Lang Hua didn't hear it clearly. He asked, "What?" ”

"No, I don't. Praise you. Yang Xiaoxiao rolled her eyes angrily.

"Is that so?" Lang Hua was a little confused.

"Xiaohua, is this what you are talking about?" Lin Qian pointed to the vortex and opened her mouth to start a circle, "Is it dangerous for Xiaoxiao to encounter it?" ”

"That's right", Lang Hua's face softened, and he raised his hand and gently rubbed it on Yang Xiaoxiao's wrist. He explained softly: "This is the small 'black fog vortex', which is the product of the 'blowout explosion' of spore black fog. ”

In Lang Hua's memory, after the catastrophe, the black fog of spores permeated the world, and due to the community habits of the black fog spores, it maintained a 'blowout out' twice a year.

During the "eruption" period, the indicators of the black fog of the spores increased exponentially, and the concentration of the black fog surged, approaching the situation on the night of "Advent Day". When sunrise comes the next day, the black fog of the spores is thin again, and everything returns to normal......

But the return to normal is just what it seems.

According to the observations of the surviving climatologists at that time, after each large-scale black fog eruption, the concentration of spore black fog is increasing worldwide, and the transformation of the earth's ecology is also deeper.

The "black fog vortex" is a remnant product found after the black fog eruption of the spores has receded.

The concentration of black fog in the black fog vortex depends on the degree and scale of the 'blowout explosion' of the spore black fog, and is much higher than the concentration in the atmosphere at present, so it contains higher quality spore crystal nucleus energy.

In the last eight years, some experts and scholars speculated that the "black fog vortex" was an accidental product of the encounter between the spore black fog ecosystem and the earth's original ecological climate.

When under various natural or man-made coincidences, such as temperature, humidity, air circulation and other factors, some black fog bodies cannot retreat with other black fog due to constraints. The fog remains in place, condenses, and whirls into itself, forming one after another "black fog vortex" of different scales and sizes.

At present, candy KTV is a typical small "black fog vortex".

But even a small black mist vortex is an existence that ordinary people cannot encounter.

It is a small probability event to peel off the black fog body of the spore to produce a black fog vortex, and after the vortex is generated, it will last for a period of time ranging from one month to three years depending on the environment, and then slowly dissipate.

The city is densely built and the environment is complex, and the probability of vortex generation is only slightly higher than that in the wild, but the maintenance time is several times that of the outdoor environment. But in the middle and late stages of the apocalypse, the number of black corpses in the city is dense and terrifying, and it is no longer the territory of human beings.

Being able to bump into the black mist vortex in this small cold storage, he was lucky to slash three times.

Lang Hua thought to himself, turned his head and explained to Lin Qian: "The danger is certain. The energies of the xenomorphic crystal nuclei are already in conflict with each other, and rash contact will only increase the burden on the limbs, and in severe cases, it will even cause the collapse of human tissues. ”

Yang Xiaoxiao covered her small mouth as if she was afraid: "It's so scary, it's just poison." Where is the 'good thing' you say, brother? ”

"Things are good, of course, but it depends on how they are used." Lang Hua didn't delay any longer, and took out a crystal nucleus from the potion box—it was the lowest-level pink black corpse crystal nucleus.

He took the crystal nucleus to the vicinity of the black mist vortex, and with a slight push of his palm, the crystal nucleus came to the middle of the vortex and hung in the air.

A moment later, the rotation speed of the "Black Mist Vortex" suddenly accelerated, and it gradually liquefied and concentrated, coating a thin layer of emulsion on the black corpse crystal core in the center. The black-gray vortex air flow gradually regains transparency and then disappears. At the moment when the vortex disappeared and the crystal nucleus was about to land, Lang Hua reached out and took the black stone crystal nucleus in the palm of his hand.

At this time, the appearance of the crystal nucleus has been restored to its original state, but the entire crystal nucleus has become larger, and the pink color has also become an unpleasant light gray.

"Crystallized...... It crystallized. Yang Xiaoxiao looked at the scene in front of her in disbelief and stumbled.

"It should be called segregation," Lin Qian added, thinking, "or like the phenomenon of rain and fog." She asked Xiang Langhua: "The crystal nucleus before should play the role of catalysis or act as a crystal embryo." ”

"Smart, worthy of Sister Qian." Lang Hua hurriedly praised, and his smiling face was very dog-legged......

Lin Qian raised her eyebrows, a little proud. On the contrary, Yang Xiaoxiao pursed her small mouth and turned her head, almost as if she could hang a small teapot on her mouth.

Seeing Yang Xiaoxiao's appearance, Lang Hua couldn't help coughing and resolving the embarrassment.

He continued, "However, this kind of thing is not suitable for a recessive symbiote like humans, and forcible contact will only cause the organization to collapse. ”

Lang Hua narrowed his eyes and guessed: "Chao Sandao must just be working and resting near it to capture the free crystal nucleus energy and increase the speed of promotion." However, the increase in this practice has been slow. ”

"And I use a black corpse crystal nucleus as a carrier, which can collect the energy in the vortex once and for all. After that, as long as this 'vortex crystal nucleus' is formulated into a potion, and you are done. ”

After that, Lang Hua raised his eyes and looked at Yang Xiaoxiao and Lin Qian, hoping to get some applause.

Unexpectedly, Yang Xiaoxiao just pouted and said, "Wow, it's amazing." Sigh ......"

Lin Qian couldn't help but feel funny, and burst out laughing.

……

"Brother Lang Hua, what are you taking?"

Seeing that Lang Hua took out a small jar of colorless liquid from his backpack, Yang Xiaoxiao couldn't help but ask, which could be regarded as giving him a step down.

"Potion solution, look at it."

Lang Hua didn't delay, and put in the special crystal nucleus formed by the black mist vortex. In just a few moments, the entire crystal nucleus dissolved into it.

After instructing the second daughter to guard the hall, Lang Hua sat cross-legged in the corner, and drank the bottle of instant medicine with his neck tilted.

The finished pharmaceutical solution, which can be prepared in advance, is not without its drawbacks. The energy conversion rate of the allogeneic crystal nucleus prepared by using "fast solvent" is one percent lower than that when prepared in the laboratory.

With the preciousness of the "black fog vortex", don't look at it as just one percent, it will also be a great waste.

But at this time, Lang Hua didn't care about these "little things".

Another reality looms before everyone's eyes – post-cataclysmic cities will only become more dangerous as time goes on.