Soon, Lu Wuyai suddenly heard a knocking sound coming from inside the cave, and his nerves immediately tensed up.

"It wasn't Su Xi and the others."

Lu Wuyai frowned, because there was no way Su Xi and the others would knock on the door. There was a card reader at the door that the people inside couldn't open, so everyone carefully checked whether they had their ID cards with them before leaving.

The key point is that today, Lu Wuyai clearly remembers that Su Xi and You Li left the cave with two ID cards.

Bang bang bang.

The knocking grew louder and louder, and Lu Wuyai felt a chill run down his spine.

He glanced at Rou Rou sleeping beside him, moved his wheelchair, walked to a box next to him, took out two Desert Eagles, and installed silencers on them.

Then, he picked up Rou Rou and placed her in a small cubicle near the laboratory.

After doing all this, he picked up a handle, piloted the drone, and quickly moved towards the direction of the rocky mountain. He wanted to know who was knocking.

The drone flew at low altitude and extremely fast. In just a few minutes, it arrived at the forest where the cave was located.

"They were a group of strangers."

Lu Wuyai took a breath and saw the other party pounding violently on the iron door of the tomb.

Although the iron gate is opened with a card and doesn't leak even during heavy rain, if someone were to ram it with that kind of force, something bad would definitely happen.

Even as the drone approached the entrance to the cave, Lu Wuyai saw the other party pull out a gun, preparing to destroy the card reader.

Seeing this, Lu Wuyai controlled the drone and sent it crashing directly into the opponent.

In an instant, the screen on the controller went completely black, and nothing could be seen.

Faintly, Lu Wuyai seemed to hear a roar coming from the direction of the tomb chamber. It must have been the person with the gun who was wounded by the drone.

Here, inside the cave, Lu Wuyai carried his wheelchair and rushed towards the cave.

At the entrance to the underground cave, the survivors who had discovered it were still pounding their chests hysterically. Although no cold front was visible, many had recently frozen to death. They had left their settlements to survive.

Some of them accidentally discovered the iron door to the basement, and especially the card reader, and guessed that other people must be living inside.

Meanwhile, they speculated that since there was such an advanced card-reading door, the environment inside might help them get through this cold winter.

It was already dusk. Inside the cave, Lu Wuyai sensed that Su Xi and the others would be returning soon, and he had to stop them from entering the cave before they did.

However, when he reached the tomb chamber, a gap had already been smashed in the iron door, and it was still widening.

Lu Wuyai had no time for anything else and fired directly into the gap.

As a result, the bullet hit the iron gate and bounced back, running wildly inside the cave, scaring Lu Wuyai so much that he dared not continue firing.

But through the gap, the survivors fired shot after shot, forcing Lu Wuyai to retreat and hide in the corridor.

The knocking continued, and Lu Wuyai fired a few more shots. The other person restrained himself slightly, but quickly resumed speaking.

The gap between the iron gate and the rock was widening. Lu Wuyai could vaguely see several people leaning against the crack in the gate, peering intently inside.

Lu Wuyai fired again. This time, the bullet didn't fly around in the cave, but hit its target. The sound of banging on the door suddenly stopped.

Lu Wuyai hid in the corridor, listening carefully to the sounds coming from outside, but after a while he didn't hear any other noises.

The surroundings were quiet, with only the occasional howling of the northwest wind.

After a while, Su Xi and the others returned, looking at Lu Wuyai sitting in a wheelchair with some surprise.

"Why don't you stay in the cave? It's so cold here." Su Xi was about to push Lu Wuyai away when a bullet hit her earlobe, leaving a hole.

In an instant, everyone in the cave felt a chill run down their spines. Seeing Su Xi rolling on the ground, clutching her ears, his expression completely changed.

"Hide quickly!" Lu Wuyai roared.

Su Xi was helped away by Song Xiaoyou and Gu Yuxin. An examination revealed that the bullet was too close to her ear, potentially causing temporary but severe tinnitus.

At this moment, bullets kept bursting out of the cave, and the iron door couldn't be closed in time. Sparks flashed throughout the cave, and bullets ricocheted one after another.

But this would harm the other people in the cave.

Lu Wuyai couldn't get up. Seeing the people around him getting injured one after another, he felt very sad.

Suddenly, Song Xiaoyou jumped up and grabbed a rifle and several grenades from the door frame at the entrance of the tunnel.

Picking up the grenade and pulling out the fuse, Song Xiaoyou threw it towards the cave entrance, causing a loud explosion.

A bloodcurdling scream rang out, and Lu Wuyai knew that the grenade had injured his opponent.

The moment the gunshots ceased, the woman beside her rushed forward and slammed the iron gate shut.

Then, another series of bangs rang out, but the iron door was made of bulletproof material and wouldn't be penetrated by bullets. Moreover, the other side didn't have any grenades, so opening the iron door was clearly impossible.

Soon, the hysterical banging sound rang out again, but this time, because the woman pressed her body against the door, the previously opened gap was completely blocked.

Ten minutes later, the sounds of impact coming from outside grew weaker and weaker.

In the end, Lu Wuyai could no longer hear the other person's breathing, and the footsteps outside the cave grew farther and farther away.

“They must have gone far away,” Lu Wuyai said.

"It's better to wait." The others, however, were still wary.

Lu Wuyai saw that, besides Su Xi, who hadn't yet regained her hearing, several other women had been grazed by ricochets. Su Xi was the most seriously injured; she had a burn wound on her thigh that looked somewhat black. He endured the pain without crying.

"Luckily, no one died," Gu Yuxin whispered.

The atmosphere in the basement was extremely oppressive. The woman had suddenly entered before Lu Wuyai could say anything. Then, the group that had left and then returned immediately began filming.

Half an hour later, the woman leaning against the iron gate let go, used nearby iron tools to reinforce the gate, and added two more locks.

Su Xi covered her ears, her expression still showing pain. The bullet had grazed her ears, and it seemed her eardrums had ruptured; blood was seeping from her ear canals.

Gu Yuxin, holding Su Xi's hand, left first. The others pushed Lu Wuyai back into the cave, gave his wounds a quick treatment, and then prepared to cook.

In the small cubicle, Rou Rou was still asleep. The gunfight that had just taken place in the cellar hadn't affected her. She seemed to be dreaming of something, a smile appearing on her face.

Bang bang bang.

Just as they were about to cook, another collision occurred on the first floor. After exchanging bewildered glances, everyone grabbed their guns and rushed over.

Lu Wuyai also wanted to go over and take a look, but Gu Yuxin stopped him. Gu Yuxin told him to fly the drone to the rocky mountain and take a look first.

But through the passageway, Lu Wuyai could vaguely hear their conversation, which seemed to be asking them to stay overnight.

Soon, a drone took off from the rocky mountain, and Lu Wuyai noticed that the drone's flight speed seemed to have slowed down.

The sky wasn't too overcast yet. Lu Wuyai had intended to increase the flight altitude, but he quickly noticed a layer of frost forming on the aircraft's sensors, prompting him to lower the altitude and regain his vision.

In the blink of an eye, the drone arrived in the forest near the cellar.

Just then, Lu Wuyai noticed several more corpses on the ground not far away, and some people were knocking on the door of the crypt, their faces filled with pain and pleading.

However, Lu Wuyai could clearly see through the camera that the pistol, ready to be pulled at any moment, was poised to fire among his opponents.

"Don't open the door!" Lu Wuyai shouted from inside the cave.

"Although there were several women, they were all carrying guns."

Upon hearing this sound, Yuri and the others, who had initially been somewhat soft-hearted, immediately hardened and told the woman outside the cave to shut up.

After an argument, the drone realized that the other party had completely left, and at the moment it got dark, it rushed towards the sea.

Lu Wuyai flew the drone back and into a cave in the rocky hill.

While the women went back to cook, Lu Wuyai drove his land patrol robot and assigned them to areas near the cave. Since it wasn't snowing, he could keep an eye on the situation there.

In the lab, Su Xi gradually regained her hearing. Of course, she felt a little dizzy. After all, she had almost been shot, so heart palpitations were inevitable.

Ana's leg injury has also been cleaned with medication. It should be fine after that.

The other women suffered minor injuries, but their psychological trauma did not heal as quickly.

"I want to hug Rou Rou; he got hurt today."

Su Xi's eyes were red, and it looked like tears might slip from the corners of her eyes at any moment.

“I’ll give Rou Rou a hug too.” Yuli walked over as well. Looking at the chubby little one, she felt her heart melt.

Half an hour later, dinner was ready. Everyone gathered around the table, playing with Rou Rou, and quickly finished the food in their bowls.

A cold front was creeping closer to the deserted island. Even with clothes on and blankets covering them, the cold air would still rush in from all directions.

The heating was turned on, and the temperature in the room dropped a little.

The thermometer was no longer able to measure precise values ​​on the deserted island; the power of the cold wave was only now beginning to be unleashed.

Before going to bed, everyone turned on all the heaters.

From the underground cave to the orchard, and from the orchard to the mountain cave, and even the containers buried underground, every place had a generator and a heater.

"Have you noticed that the indoor temperature is much warmer than it was a few days ago?" Kim Seok-rok said in the darkness.

Everyone felt the same way. It's probably because there are heaters in various parts of the cave, so the cold air can't be concentrated in one place.

Even so, in the latter half of the night, Lu Wuyai and the others still felt an overwhelming chill.

After enduring until dawn, the temperature in the room slowly rose again, making everyone reluctant to get out of bed.

Lu Wuyai hid under the covers, gripping the handle. Once the machine was turned on, he could see a scene near the tomb chamber.

The land patrol robot could still move, but all it could see was white. At first, Lu Wuyai thought the camera was broken.

But he soon discovered that the lens was white because it was snowing.

The cold wave has not yet completely subsided, but the deserted island is once again covered in snow.

Around noon, I opened the cellar door and found the entrance blocked by ice, but shoveling snow was easy. The snowflakes weren't very big; they were more like ice crystals.

“You can’t breathe outside.” The people who went out immediately came back and said that there was a bone-chilling cold in the air and their throats felt like they were being cut by a knife.

Gu Yuxin collected some snowflakes and discovered that they were actually ice crystals lighter than ash.

This is the first time anyone has encountered this situation.

Even with the door closed, several women still felt uncomfortable; their saliva smelled fishy.

"A cold front shouldn't be far off. Be prepared; temperatures will drop in the next few days," Song Xiaoyou said calmly.

Inside several shipping containers, everyone was preparing supplies for the winter, and Gu Yuxin was also making a high-powered heater.

Lu Wuyai went to his bedroom and took away the ancient painting hanging on the wall.

During his injury, Lu Wuyai meditated almost every day. He suspected that his rapid recovery might be related to this incident.

Of course, this has no scientific basis and is entirely Lu Wuyai's own opinion.

In addition, Lu Wuyai also brought a box filled with various kinds of strong liquor. With the cold winter approaching, drinking water can help keep warm.

Gu Yuxin and Xia Qingming went on a trip. When they returned, they each brought back a lot of ice. This ice had been broken from the swimming pool. After melting, it could be used to boil water for drinking.

In the living room, thermos flasks and insulated cups were piled up together, looking quite impressive, and all the containers were filled with hot water before meals.

It was dark, and Song Xiaoyou was organizing things in the lab. She subconsciously touched her forehead. At first, she felt a chill on her scalp, a strange coldness creeping down her spine.

Just then, the lights in the living room, which had been on, suddenly flickered and then went out.

What's wrong.

Everyone was startled at first, suddenly feeling a cold front approaching. Only then did they realize that the cold air that had been hovering in the sky had likely finally arrived on this deserted island.

"Go check the heater; it's okay if you don't change the light bulb."

Anyway, everyone can see it at night, and the cold wave should have just started hitting the deserted island. Staying warm is the key.

After circling around and returning to the cave, they noticed the temperature hadn't risen. Strands of cold air dripped from the blankets covering their heads, and they sensed some danger.

"It's so cold." Su Xi breathed a sigh of relief as a layer of ice crystals gradually appeared in the air.

With no other option, everyone turned on some of the heaters they had stored away, and the temperature in the underground space slowly rose again.

The water in the thermos had gotten hot, but after only three or four hours, the temperature cooled down too quickly.

"Boil more water, otherwise the thermos will be frozen when you wake up at night."

"Okay, I'll boil the water again in two hours before I go to sleep."

After dinner, because it was too cold and no one wanted to sleep, Tang Xin suggested watching a movie to pass the time.

Here, Gu Yuxin and Gu Yuxin have just made tomato sauce fries, which can be eaten as a snack.

Lu Wuyai also took out a bottle of Remy Martin from the box, and everyone drank some. As a result, the dizziness made them temporarily forget the cold.

"I feel so dizzy." Gu Yuxin, her head covered, leaned against Song Xiaoyou and said, confused, "Why do I see two Song Xiaoyous?"

Song Xiaoyou blushed as well, seeing a double image in everything she saw.

Su Xi leaned against Lu Wuyai and said, "Tell me, did you drug the drink?"

Why do I feel so dizzy?

Lu Wuyai looked at Su Xi, who was so close to him. He could clearly feel her explosive figure, but he was also dizzy and secretly wondered if Remy had stopped breathing.

I insisted on watching the entire movie, and many people helped me to a cubicle to sleep. That night was exceptionally quiet.

At this moment, it was as if a thin veil was gently covering every corner of the deserted island.

......

The next morning, Lu Wuyai woke up with a headache and his eyes wide open. He felt sore all over. Looking closely, he realized he had slept in a wheelchair all night. No wonder he felt so uncomfortable.

"I've had too much to drink." Lu Wuyai felt another chill, but the heaters around him were all running, and there was no power outage or malfunction.

Therefore, the temperature inside the cave remains at approximately five degrees Celsius.

Lu Wuyai tried to stand up from his wheelchair. This time, he found that he could stand steadily and walk a few steps.

"It should get better after a while," Lu Wuyai sighed. Sitting in a wheelchair was really uncomfortable. It felt like he'd been sleeping for a long time.

At nine o'clock, the people in the cubicles began to get up. In fact, it was the soft sound of crying that woke them up.

Therefore, when recalling the scene of getting drunk last night, everyone seemed a bit silent, mainly out of embarrassment.

"Why don't we go outside and take a look?" Lu Wuyai said.

After some discussion, everyone decided to go out at noon. The temperature was probably still quite low, and the cave entrance seemed to be frozen shut and couldn't be opened.

And so they waited until noon. After everyone had lunch, Su Xi pushed Lu Wuyai to the basement, where they saw You Li and the others using flamethrowers to burn the iron door. The gaps were completely frozen by the steam.

A minute later, the iron gate was opened, and a large amount of water vapor rushed out.

Looking out, the cave was covered in white ice crystals. The snow wasn't very thick, but the nearby forest was completely covered in a layer of ice. It felt like a completely new world.

You can still see some ice crystals in the air, about the size of ash. When inhaled, they can cause a slight stinging sensation in the nose, trachea, and lungs.

However, the air quality is still acceptable today compared to yesterday.

After exiting the cave, looking at the ice crystals nearby, everyone even doubted whether they were snowflakes.

"It must be caused by a cold wave; it's so cold." Molly shrank her neck. Wearing two down jackets, she couldn't stand the temperature here.

The same applies to others. In such harsh conditions, ordinary people cannot go very far.

At this moment, the sky was not blue, but still had a faint gray hue.

"It's February now, so the cold winter may not end anytime soon."

Song Xiaoyou looked up at the sky. The cold front was no longer visible. Yesterday was gone.

"The cold wave disappeared so quickly," Su Xi muttered to herself.

However, considering that everyone had been completely drunk last night and had forgotten about the cold snap, a sudden power outage last night would have been a disaster; they might have frozen to death underground.