At six o'clock in the evening, Yang Tian dragged his tired body back to the five-story building. Pen & Fun & Pavilion www.biquge.info

Xiao Qinglong's spirit was surprisingly good, his eyes widened and he lay on Yang Tian's shoulder, and his eyes lit up as Yang Tian took out two plastic bags full of fresh meat from the trunk of the car.

In the bag, Yang Tian encountered a 'silver-haired pig' in the process of practicing knife skills, and after killing it, he cut some meat from his body.

It's a pity that this silver-haired pig hasn't even reached the level, and of course there is no beast core in his head.

Back to the five-story building, Yang Tian endured his exhaustion, cut the meat of the silver-haired pig into small pieces, sprinkled seasonings, skewered it on a thin iron skewer and roasted it on the fire, and threw it to Xiao Qinglong.

Yang Tian didn't know why this little guy loved to eat barbecue so much, Yang Tian was a little tired of eating it for two days, and felt that it was not as delicious as the meat in the canned beef, but Xiao Qinglong never got tired of eating it.

After serving Xiao Qinglong to his heart's content, Yang Tian took a bath and explained that Xiao Qinglong was clever at night, so he lay on the bed with a knife, closed his eyes, and fell asleep in a few minutes.

I don't know how long it took, Yang Tian heard a 'squeak' and a rumbling sound, and he opened his eyes suddenly.

Yang Tian was very surprised when he saw the little green dragon lying on the head of the bed, and listened to the rumbling sound from outside that seemed to be the galloping of ten thousand horses, so he immediately turned over from the bed and sat up, quickly dressed in the dark, came to the window with a knife, and carefully opened the curtains to look outside.

It was a moonlit night, the situation outside looked relatively clear, in the bright moonlight, Yang Tian saw a large number of strange beasts, they passed through the streets outside in groups, and ran in the direction of Tianxiong City.

Beast tide!

In Yang Tian's head, these two words suddenly popped up.

The YS virus outbreak has been going on for almost a hundred years, and the safe zone established by humans has experienced a beast tide every once in a while.

Beast tide is a large number of alien beasts attacking the city established by humans in groups, generally every three or four years, there will be a small beast tide, and every ten years, there will be a large beast tide.

Looking at the various strange beasts running by on the street outside, Yang Tian felt his scalp tingle, so many strange beasts, even high-level martial artists, could be quickly overwhelmed by this beast herd!

The reason for the occurrence of the beast tide has long been known to humans.

The high-level alien beasts among the alien beasts are as smart as humans, they take humans as their fierce enemies, and the reproduction rate of alien beasts is too fast, every few years, there will be a 'surplus of beasts', in order to keep their territory from chaotic, these high-level alien beasts will drive a large number of low-level alien beasts to launch suicidal attacks on the cities built by humans.

This can not only reduce the number of low-level beasts, but also consume human resources, which is simply killing two birds with one stone.

The outbreak speed of the beast tide is very fast, leaving the warning time for humans, generally only a few hours, after the leader of the alien beasts gives an order in the territory, in just one or two hours, a large number of alien beasts will gather from the surroundings, and then head towards the human city!

After Yang Tian glanced outside, he carefully lowered the curtains, held the knife, sat cross-legged under the window and waited quietly, now is not the time to go out, if you are surrounded by a large number of foreign beasts, there is only one way to die.

Barren Hill City is only more than fifty kilometers away from Tianxiong City, and when the beasts arrive, the people in the warning area are estimated to have already retreated into the city, and the people in the city will rely on the city wall as high as 100 meters to start a round of battle with the alien beasts.

The reason why human beings can detect the beast tide in advance and prepare in advance is because there are satellites in the sky, which monitor the alien beasts at all times, and the alien beasts are scattered and difficult to observe, but once they are gathered, on the satellite infrared map, it is a large moving red.

Every beast tide is an opportunity for warriors to make huge profits and show themselves!

Human cities have been built very strongly, and when the beasts attack the city, those high-powered weapons on the walls can deal a devastating blow to the beasts.

When the herd is dispersed, it's time for the warriors to feast! The warriors in the city will take the opportunity to rush out of the city to hunt strange beasts and harvest a large number of beast cores.

The group of low-level alien beasts running outside has not yet discovered Yang Tian's existence, and it is estimated that they are urged by the high-level alien beasts, and there is only one thought in their minds, that is, to rush to the city in front of them.

Yang Tian held the knife, closed his eyes slightly, and waited quietly, as long as the beast herd passed, it was the time for him to go out!

Waiting quietly, feeling that time passed very slowly, Yang Tian raised his wrist from time to time to look at the time.

When Yang Tian was woken up by Xiao Qinglong, it was more than three o'clock in the morning, and half an hour later, the beasts passed through Barren Hill City.

At this time, Yang Tian still did not act.

……

Under the moonlight, the tents outside Tianxiong City have long been gone, and under the city wall up to a hundred meters high, there is full of domestic garbage, and the people living in the warning area have long been put into the city wall to avoid this beast tide.

There is a limit to the number of people that can be accommodated in a city, and only a few can be sacrificed for the benefit of the majority. Outside almost every city, there is such a group of people, most of them are people who wandered around after the outbreak of the YS virus, and finally found the city and gathered.

Some of them were those who broke the rules of the city and were expelled from the city. There are also some people like Yang Tian, who have the qualifications to live in the city, but are not satisfied with the status quo, go out of the city to experience, and want to become a strong man.

Over the past few decades, people living outside the city have had offspring, and the population has increased considerably, not much different from the population in the city.

With so many people, if they rebelled in another era, they could occupy the entire city. But in this era when alien beasts are rampant and warriors rule the world, these people are only a vulnerable group of human beings, and they have no basis for rebellion at all, and can only rely on the struggle of the city to survive.

Those who live outside the city are also a resource to the people inside the city, and most of the food in the city is provided by the people outside the city, and the city provides them with medicine and weapons.

After the outbreak of the beast tide, the city administrators allowed people from outside the city to take refuge behind the city walls, but they were never allowed to stay in the city for a long time, so as not to disturb the order in the city.

You must know that people inside and outside the city have completely different institutional concepts in their minds. The city is safe and secure, and most people are law-abiding. And the people who live outside the city, their concept is that the strong are respected, and they can pull out their knives and kill people for some quarrels.

When Yang Tian woke up more than ten minutes later, the beast herd approached Tianxiong City.

This was a small beast tide that erupted to the east of Tianxiong City, and it can be estimated from satellite images that there were probably millions of alien beasts. Before the beasts could get close to the walls, the weapons on the walls opened fire.

The sizzle of laser cannons, the rumble of shells exploding from conventional rapid-fire guns, the clatter of high-powered machine gun fire, the sizzle of electric lightning explosions, these sounds are intertwined and break the silence of the night.

Lasers, electric light, and firelight lit up a piece of sky, even if it was dozens of kilometers away, these lights all passed through the window and flickered on Yang Tian's face.

Under Tianxiong City, a herd of low-level beasts braved the rain of bullets and bullets to attack the city wall. They were very fast, and after losing a few of their companions, they ran to the bottom of the city.

The walls are not at an angle of 90 degrees to the ground, but they are inclined outward, and if the beasts want to attack the walls, they must use their claws to climb.

Even on top of the city walls, there are flat-firing large-caliber machine guns, and high-voltage power grids.

This attack of the beast herd, which began at more than three o'clock in the morning and lasted until seven o'clock in the morning, did not end, which surprised the administrators of Tianxiong City.

Judging from the experience of decades of beast tide outbreaks, the attack of the beast herd will generally only support more than an hour, and after a small number of alien beasts are killed, the beast herd will disperse.

And now, it has lasted for more than three hours, and the low-level alien beasts are still attacking desperately, and many alien beasts have climbed the city wall.

Although all of these alien beasts were electrocuted by the high-voltage power grid, or killed by large-caliber machine guns. But if the beast continues to attack like this, the beast is likely to attack the city and cause damage to the inhabitants of the city.