I woke up from my sleep and looked at my phone screen, and the time was 17:30 in the afternoon.

As soon as he woke up, Zhou Yunfeng felt a little cold, so he put on two more clothes, and then looked at the thermometer, the temperature had dropped to minus 3 degrees Celsius, the city where he was built belonged to the southern region of China, and the lowest temperature in history was not below zero, but now this history has been completely broken.

He knew that this was just the beginning, according to the diary, the temperature would drop to about minus 40 degrees, and the weather would freeze everywhere in the world, and in the polar regions, the temperature would even drop below minus 100 degrees, which was no longer an area where humans could live.

Compared to the beginning, the moon is getting bluer and brighter, and there are only a few pedestrians on the street, most of whom come out to buy warm items to go back.

After watching from the balcony for a while, Zhou Yunfeng turned on the TV and computer to watch the latest news and news, and the official had already begun to report the matter at this time, but it was only to appease the public, and did not give any scientific explanation.

And the topic of the end of the world has begun to spread on the Internet, and the official can't control the rumors that are spreading more and more, and soon the entire Internet is full of remarks about the end of the world, and the more they say, the more outrageous they become.

Suddenly remembered the notebook, so he walked to the bedroom and took it out, just picked up the notebook, Zhou Yunfeng's eyes suddenly changed, and found that the color in the upper right corner of the cover had changed to light blue.

Noticing this, Zhou Yunfeng suddenly frowned, he clearly remembered that the cover and back were originally pure black, and then rubbed the small piece of blue with his fingers.

"It's not painted, how can it be?" Zhou Yunfeng quickly determined that the corner of the discoloration was not dyed with paint, and he sealed the notebook well, how could any paint fall on the cover.

Unable to understand why this was the case, Zhou Yunfeng hurriedly opened his notebook to check, but to his disappointment, the contents of the diary did not change at all, and the rest of the diary was intact, and the back was also pure black.

Zhou Yunfeng has always had huge doubts about this notebook, and what he wants to figure out most is why those diaries appeared out of thin air, and now there is an anomaly of a cover change, which makes him even more confused.

Although he didn't know why the cover of the notebook changed color, Zhou Yunfeng always felt that it was inseparable from the anomaly of the earth, and maybe he would know what was going on in the future.

Zhou Yunfeng's work is all sitting in front of the computer, and he rarely exercises, so he has some fat belly, although he is 1.76 meters tall, he is not strong.

Now that the whole earth has changed, he ponders the need to exercise and improve his physical fitness, so as to increase his chances of survival, no matter what, it is better than staying at home and sitting all day.

As soon as he thought of it, the exercise program began, and in addition to some exercise training in the house, he would occasionally go for a run on the rooftop above to get some fresh air by the way.

As the days passed, half a month passed quickly, the temperature had dropped to about minus 30 degrees, and the streets were so deserted that there was no one to be seen, except for the occasional military patrol car passing by to make sure that nothing unexpected happened.

In such a cold weather, basically no one would run outside, but Zhou Yunfeng endured the cold and insisted on running on the rooftop for a period of time every day.

Because of his insistence on exercising every day, the fat on Zhou Yunfeng's stomach has been significantly reduced, and some inconspicuous muscle contours can be seen slightly.

He gradually adapted to the cold and low temperatures, unlike those who stayed in the house all day, shivering with cold as soon as they came out of the door, which was a gradual way of adapting to the cold environment.

Over time, the Mystery Notebook has continued to change, starting with a small corner of the cover turning pale blue, now spreading to a quarter of the entire cover and continuing to expand.

He didn't know what would happen when the entire cover turned pale blue, but he noticed a peculiar phenomenon, the notebook changed a little faster when exposed to the direct sunlight of the moon, and not as quickly as when placed inside.

After discovering this phenomenon, Zhou Yunfeng would bring a notebook every time he went to the rooftop to run, which accelerated the change of cover.

…………

On February 1, 2018, the temperature dropped to minus 39 degrees Celsius, and Zhou Yunfeng was worried that if the temperature continued to drop, it was very likely that humans would eventually become extinct because they could not adapt to the low temperature, which was much more likely than death from starvation or other causes.

Generally speaking, when the temperature is close to minus 50 degrees, it has reached the edge of danger, and most people cannot survive, especially those who are old, are the first wave to be eliminated, and only those young and strong young people have a better chance of surviving.

In a month's time, Zhou Yunfeng insisted on exercising every day, gradually increasing the intensity of exercise, the effect was so obvious that he was surprised, the fat on his stomach almost disappeared, the muscles became obvious, and the most important thing was that the cold tolerance was improved the most obviously.

Zhou Yunfeng knew that his insistence on exercising had paid off, but this efficiency was a little surprisingly high, and it was unlikely that the normal exercise mechanism of the human body would change so obviously, and it would take at least two months of high-intensity exercise to change now.

Zhou Yunfeng was a little puzzled by this, but this was a good thing for him.

During this month, Jiancheng's power supply and water supply have had problems due to ultra-low temperatures, but fortunately, the official rescue was solved in time, and the signal has also been affected, sometimes good and sometimes bad, very unstable, and the TV station now only has one official channel left to provide the latest news.

At about 17:50, Zhou Yunfeng was eating in the house, and when the apple in his hand was halfway eaten, there was a sudden sound of the balcony window glass breaking, and the sudden sound startled him, and then he walked quickly to the balcony to check, and sure enough, he saw a hole in the glass on the window.

Broken glass pieces were scattered on the ground, and gusts of cold wind whistled through the hole into the room, which soon made him feel cold all over, and caused the temperature in the room to gradually drop.

After a short time, Zhou Yunfeng brought a broom and adhesive tape, planning to clean up the glass fragments on the ground first, and then use super adhesive tape to temporarily seal the window break.

"Hmm, what is this?" When cleaning the broken glass blocks, Zhou Yunfeng suddenly found a strange transparent crystal, so he bent down and picked it up.

At first glance, the crystals are about the size of the fingernail of the thumb, in the shape of an octahedron, and look as crystal clear.

"Looks like this thing smashed the window, but it seems a little too strong, could it be that it's a prank?" Zhou Yunfeng was basically sure that it was the crystal in his hand that broke the window.

However, how could this crystal smash into the balcony window, and the force was still so strong, Zhou Yunfeng really couldn't understand this.

After cleaning up the glass fragments, the window break was also temporarily sealed with adhesive tape, and after dealing with these, Zhou Yunfeng was relieved, as for the crystal that smashed the window, he threw it on the table.

Zhou Yunfeng had installed a monitor on the rooftop before, and he might have captured something, so in order to find out if the crystal had fallen from a high altitude, he deliberately called up the recorded video to check it.

Replaying the video from the time period when the window was smashed just now, Zhou Yunfeng quickly noticed from the picture that several flashes flashed in the air, and when he saw this, he immediately slowed down the video and played it back, and carefully confirmed it a few times.

After watching it several times, Zhou Yunfeng felt that the crystals he had just picked up were the few flashes and other objects in the video, which were estimated to have fallen from the sky and smashed on the glass of his balcony, which was the scene just now.

There are several flashes in the video, one of which fell not very far from the unit building where he lives, estimated to be only one or two kilometers away, and the others are too far away to be confirmed.

After watching the video, Zhou Yunfeng picked up the crystal on the table again, squinted his eyes slightly and looked up and down, he was very concerned about this thing, but after watching it for a long time, he still didn't have a clue.

Finally, he put the crystal aside, picked up his notebook and looked through it to see if there was a new diary, but unfortunately he still didn't see a new diary when he opened it.

Since the last time there were two more pages of the diary, so far there has been no new diary in the notebook, and every day Zhou Yunfeng will take out the notebook to confirm, but unfortunately he has not been able to see the new diary as he wished.

Until now, Zhou Yunfeng didn't know how to refresh the diary from his notebook, so he could only take it out and look at it every day when he was idle.

Now that the earth has become like this, what will happen in the future, Zhou Yunfeng has always been very worried in his heart, always feeling that there are more terrible things that will happen in the near future, and the only thing that can make him determine the situation in advance is the future diary recorded in the mysterious notebook.

At present, it has exceeded the time of the last diary, and no new diary has appeared, Zhou Yunfeng feels very uneasy, because of the diary, he knew some things in advance, and he had time to fully prepare, at least he was more down-to-earth, and now the future is full of unknowns, which made him a little uneasy.

…………

On the morning of February 2, Zhou Yunfeng took out his notebook again after breakfast and flipped through it as usual.

When he turned to the fourth page, Zhou Yunfeng was stunned for a moment, and the long-awaited new diary finally appeared on the fourth page, and after looking forward to it for more than a month, he finally saw a new diary appear again in the notebook.

At this moment, his heart suddenly accelerated, his left hand clenched into a fist, and he looked down at the new diary intently.

Page 4 of the diary, dated March 26, 2018, almost two months later.

As mentioned above, the temperature has remained stable throughout February and has not continued to fall, and there is a shocking news in the official news.

It is said that moonlight carries a strange radiation energy, and this radiation is beneficial to the human body, which can promote the strengthening of human cells, and is officially named 'EvolutionRadiation', which means evolutionary radiation.

Seeing this, Zhou Yunfeng suddenly understood why his physical fitness had improved so amazingly after just exercising for a month, it turned out to be related to this radiation energy.

In the new diary, there was another piece of information that surprised Zhou Yunfeng very much, the owner of the diary actually picked up a crystal, which looked exactly the same as the one he picked up on the balcony yesterday.

And also learned about the role of the crystal, the owner of the diary seems to have a high status, according to his own network, this crystal will absorb radiation energy on its own, and the change process is manifested as a gradual change of color.

When the complete discoloration reaches the critical point, the crystal will also release the absorbed radiation energy in a short period of time in a way that is dozens of times more intense, and people in the close range of this intense radiation will obtain substantial benefits and substantial improvement in physical fitness.

The origin of this crystal is not mentioned in the diary, and for the time being, it is only known that it fell from the sky, and the number is unknown, but it is certainly not much.

Finally, another good thing happened, since March, the moon's anomaly is gradually recovering, and the temperature is slowly rising, but the owner of the diary personally feels that this is not a good thing, because as the moon recovers, those radiation energy is gradually decaying.

After reading the newly appeared diary, Zhou Yunfeng took a deep breath, sorted out his thoughts, and learned from the above content that the situation would not get worse in the next two months, but for some reason, he always felt that the moon could not return to normal so easily.

After reading and closing the notebook, I picked up the crystal on the desktop and took a closer look, I didn't pay attention to it for a long time, the transparent crystal at the beginning, it really changed, and a small part of one of the triangles really changed color, the same color as the blue full moon.

This kind of change appeared, Zhou Yunfeng could be 100% sure that this was the kind of crystal described in the diary, and it was a very good thing, at least for now.

After observing the crystal, Zhou Yunfeng suddenly remembered the video he watched yesterday, and saw the few flashes in the picture, one of which fell near here.

Now that he knows that crystals are rare good things, Zhou Yunfeng was born with the idea of going out to find that crystal, and having two crystals must have more benefits than only one, which is the reason why he wants to find crystals.

As soon as he thought of it, Zhou Yunfeng began to pack his things and prepare to go out to find the crystal.

For this outing, he wrapped several layers of cotton clothes on his body, wrapped himself as tightly as a zongzi, carried a large backpack full of various things, and a sharp saber tied to his thigh, just in case he could use it.

Whether it was for warmth, food and weapons, Zhou Yunfeng was ready, and only after confirming it again and again did he go out with peace of mind, walked downstairs, and soon came to the street.

This is the first time since the change of the earth, the street is surprisingly quiet, empty, there is no movement, giving people the illusion that the whole city has become an empty city.

The street was dimly lit, and only a few street lamps were still on, but fortunately, after the full moon turned blue, the moonlight was obviously much brighter than before, and even if there were no street lights, I could barely see the surroundings clearly, but it was basically difficult to see clearly from two hundred meters away.

The current situation is similar to that of the past, when the sky was just dawning, so that you can't see far without lights.

Wrapped too many clothes, a little clumsy to move, riding a bicycle was more laborious and troublesome than before, it took a while to get to the vicinity of the target location, after parking the bicycle on the side of the road, Zhou Yunfeng began to look for it with a flashlight, he knew that now is the most troublesome.

The crystal is very small, it is not easy to find it, and it is so cold outside, it is impossible to stay for too long, and now the temperature is close to minus 40 degrees Celsius, with the current physical condition, it is the limit to stay outside for six or seven hours at most.

If he doesn't go back for more than seven hours, Zhou Yunfeng is very likely to freeze to death outside.