On his deathbed, a veteran of the Battle of Doom told his son that the biggest regret of his life was not being able to sing a song he had just written to his comrades.

The veteran was ninety-seven years old when he died, and if it weren't for the old injuries that fell on his body, it is estimated that he would not have had a problem living to be more than 100 years old.

This son is over seventy years old, and his body is still relatively strong, and it is not a problem to run two steps, but the air now does not allow humans to breathe openly, and they can only move outdoors with gas masks and protective clothing.

He stood in front of his father's tombstone with the yellowed piece of torn paper, and the thick white fog around him made it impossible to see what was written on the tombstone.

Finding a clod of soil, he pressed the piece of paper full of music in front of the tombstone, and slowly kowtowed three times, then turned away.

At present, there is only one place in the area of human activity, in a basin at an altitude of more than 2,000 meters, and there is a gap around the basin, where people enter and exit. In order to prevent other monsters from approaching and intruding into the human home, a provision was enacted under the discussion of the improvised government, which was like a national criminal law, that all young people between the ages of twenty and twenty-five, both men and women, were to go to the mountains around the basin to stand guard for one year, during which they could only once go home to visit them for two days, during which time anyone who escaped or left without permission was punished by squatting for 10 to 100 years, depending on the severity of the situation.

Kneeling to say goodbye to his father, he returned home and continued to lie on the chaise longue and live the boring life day after day, but when he thought of his confused grandson, who was going to be imprisoned for forty years, he became angry and disappointed, and was not at all a character like his brave father.

This seventy-year-old son's name is Xian, which was chosen by his father casually, probably on a whim at some point.

The home of the string is on the edge of the basin, close to the foot of the mountain, where various small animals are often seen.

The trees in the woods have all died, and the animals that can adapt to this environment have begun to move.

It was a snake five or six meters long, and it zigzagged forward, following the breath left yesterday, to a large tree, with a bird's nest on it, in which a female bird was squinting and sleeping, and under it there were three eggs, each of which was ten centimeters in size.

The female heard something climbing up the tree through the sound of her bones, and she was about to reach this point, and opened her eyes suddenly.

The female bird is huge, half a human tall even when she squats there, and the slender beak is the most powerful third claw, and it is no joke to poke it, even a human body armor can pierce it.

The female stared at the entrance of the cave.

A thick mist flowed into the cave, and a subtle grinding sound was heard.

This snake is very experienced, and it does not appear directly at the entrance of the hole, but first scouts around to see if there are any other exits or imports.

The dead branch where the bark had fallen revealed the white wooden structure inside, and the snake wrapped around the dead branch. Although obscured by white fog, the human eye cannot see the hole, while the snake's eye has evolved or mutated to adapt to the light environment of white fog, and seems to be able to see things in a way that other anthropology would not.

The snake's eyes blinked, spit out its lovely long white tongue, and said, "Sister, are you there?"

It's Xiao Fang, come in. I thought it was! The female also spoke.

It's still good in the nest, the temperature outside is too low, it's a little cold! As soon as the snake came in, it formed a circle.

That is, then why don't you find yourself a nest? The female tilted her head to look at the snake.

I thought too, haven't I found this yet! The snake shook its head, disappointed.

Don't worry, this kind of thing also depends on luck. The female smiled and comforted the snake.

After greeting for a while, the snake called Fang told the female bird that there was a lake in the north less than ten kilometers away from here, and there was no white fog over the lake, the air there was very fresh, and the water in the lake could be drunk.

After hearing this, the female bird shook her head, looked down at the balls under her feet, and said softly, I am fine here.

Fang also shook his head, knowing that the eldest sister was stubborn, he stayed for a while and left.

Today, less than 10,000 humans have survived, and the vast basin covers an area of nearly 10,000 square meters per capita.

String's luck was to catch a wild boar, but there was no one to share the joy with.

After eating and drinking, the strings were idle again.

Why not do something exciting? String's brain suddenly had an idea.

So, string put on a protective suit, put on a mask, found the pistol that had been hidden for a long time, carried it in his arms and went out.

A checkpoint was set up at the exit in and out of the basin, and the people inside were also very idle, always asking where the string's pistol came from and what to do with it, and the string explained that it was inherited from his father, and the people still didn't believe it, saying that you were a bad old man, and the grade was not young, and it was dangerous to take a pistol, and the string said that it was not dangerous, and the people at the inspection station were not willing to take care of it, so they let the string go.

It's been a few years since I've been outside the basin, and I'm nostalgic for the feeling of being free and at ease.

Take a deep breath, feel the air outside, and start your adventure with joy.

The round lake, less than a kilometer in diameter, is already surrounded by several animals that have begun to mark their territory.

The long snake party was a little tired from the long journey, and rested in a bush.

Popping, the sound of gentle footsteps slowly approached, and as soon as the long snake's square eyes turned, he saw a tall figure standing in front of him.

Fang, you still have a face here? A wild cat stood tall and proud.

I'm coming, what's up? Fang erected his neck high, exceeding the height of a wildcat, and looked down at the wildcat.

Hmph, I don't know who said they wouldn't come! The wild cat tilted its head and did not look at the long snake.

You're wrong, I didn't say I wouldn't come with you, and I didn't say I couldn't come by myself! The long snake pouted.

Okay, I don't bother to tell you, but don't forget the rules! The wildcat jerked around and walked away with a bounce of stride.

Look at you proudly, and those who don't know think this is your home! Long Snake Fang thought to himself.

Boom!

A gunshot rang out in the woods in the distance, and several birds flew into the air and scattered.

A few wild monkeys chased the strings, chirping and screaming, which was very mad.

String fired a few shots into the air, but found that nothing worked, and ran away. Stumbling and running to the lake, the wild monkey behind him did not follow, and he couldn't help but catch his breath, and when he looked up, he realized that he had come to a lake.

The long snake Fang looked at the upright animal in the distance, that is, a human, and was a little shocked, he didn't expect that a human would discover this place so soon.

At this time, not only the long snake was staring at the human, but all the animals were staring at the human.

String looked around and found that there were many animals staring at him, and he couldn't help but smile, it turned out that he was late.

Xian was not a savage human, and he was very amusefully away from the lake and returned to the woods, but the wild monkeys actually crouched on the trees and waited for him.

At this time, a lion came over, and by the way, he also sighed, obviously just woke up.

Xian noticed the lion, which was more than two meters tall, and he was no match at all, so he could only stand still and wait for the verdict.

The lion looked at the human walking upright, and then at the monkeys squatting in the trees in the distance, and raised his right foot to point, and the monkeys understood at a glance and scattered with a sigh.

Xian understood at a glance, this is the big guy, nodded to the lion with grateful eyes, turned around and left here, don't leave, what if the lion is gone, the monkeys come back.

On the way back, Xian was much more careful, he didn't encounter a ferocious animal, and he saw the obvious orange light at the checkpoint at the entrance and exit of the basin from a distance, and Xian suddenly felt a lot more relaxed.

Back at home, String hid the pistol again, took out a piece of barbecue, lay down on the chaise longue and nibbled on it, took a sip of homemade filtered water, and smiled self-deprecatingly.

Finish.