In the afternoons and evenings, there are no special activities and no entertainment.

It is understood that everyone will leave the canteen tomorrow and take refuge in other places that are more suitable for survival.

It's not that the iron door of the canteen can't be defended, but the food and water in the canteen are not enough, if they don't leave early, when the food and water run out, they won't have the strength to run if they want to.

Escaping with a full stomach is better than making the last struggle with a hungry stomach, no matter what, the former has an advantage, so Yang Shan can understand that Mr. Zhao's decision to leave is for everyone's good.

But he didn't want to leave much, for the simple reason that he had a crush on the mountain of zombie corpses on the first floor.

Although the price of zombie corpses that have lost their blood essence has plummeted, and each corpse can only be sold for 5 star soul coins, mosquitoes are small and meat, and their volume is huge, which adds up to a lot of income.

In the evening, he carefully designed the detail page of the bloodless zombie corpse, and updated and improved the detail page of the bloodless zombie corpse.

His source of income currently only relies on the sale of zombie corpses, and when he has free time, he must carefully design the detail page and main image, hoping to attract more customers and further improve the conversion rate of traffic.

In the morning, he had already asked what blood essence was, so he had a deeper understanding of the value of zombie corpses.

Blood essence is also known as spiritual power crystal, it is a gift from nature to monsters, and it is also the source of power for monsters.

Take zombies as an example, once humans become zombies, their blood will stop flowing, and the energy of the whole body will be concentrated in the heart, using the body as the confluence 'engine', continuously absorbing spiritual power from nature, and then replacing the blood with the spiritual power absorbed into the body, giving them a new source of energy for their activities.

And their original flesh and blood energy, with the cooperation of natural spiritual power, condenses into crystals in the heart position, which is the blood essence, the exclusive heart of zombies.

It was precisely because their flesh and blood energy had gathered a little bit that the skin of their bodies looked pale, and when they were cut open, they were pieces of rotten flesh.

It is precisely because they use natural spiritual power to replace blood and derive blood essence, their comprehensive strength will be greatly improved, and at the same time, they will obtain the basis for continuous evolution.

This knowledge was told to him by an enthusiastic merchant, and it can be regarded as the inference of this wise merchant about zombies, although it may be a little different from the real situation, but it is already very remarkable, and it is worthy of being a wise man of advanced civilization.

At the beginning, Yang Dan was still puzzled, isn't the earth devoid of the mysterious substances such as aura and spiritual power? Where did the zombies steal the spiritual power?

After the mention of the enthusiastic businessman, he had some understanding, and finally suddenly realized.

Feel it carefully, the air environment after the end of the world is indeed many times fresher than before the end of the world, and today's air environment is about one or two times fresher than the day the end broke out.

It can be inferred that the earth's air environment is constantly retro.

In other words, the earth has been flooded with spiritual energy, and the richness has been continuously improved, thus promoting the optimization of the earth's air environment, giving people a retro feeling.

A deeper guess may be that the 'superhuman' who has obtained special abilities is also the guide of spiritual energy.

Human beings themselves have the bloodline of the ancient power, take the Huaxia people as an example, everyone is the child of the true dragon, if they activate the bloodline of the true dragon, it is normal to get special abilities.

And the fuse that activates the human bloodline is the aura and spiritual power.

From these speculations, it can be analyzed that the most valuable thing about zombie corpses is their blood essence, because blood essence is a kind of spiritual power crystal, which is higher than the energy of Star Soul Coins, and belongs to the same cosmic-level energy as Star Soul Coins.

Zombie corpses without blood essence are completely a virus body, and can only be used as poison refining materials for advanced civilizations, and their value is naturally halved compared to zombie corpses with blood essence.

By consulting the merchants, ordinary zombies can be defined as first-level zombies, corresponding to first-level blood essence; Zombies that continue to evolve in the future can be defined as second, third, and fourth-level .......

The value of the first-level blood essence is about 5 Star Soul Coins, and the value of the first-level zombie corpse is the same, which is the result calculated by enthusiastic merchants through the principle of conservation of energy, and the error should not be large, they are worth this price.

It took a few hours to take care of the two treasures of the store, and seeing that it was about to enter midnight, Yang Shan did not continue to decorate the store, and withdrew the virtual interface and rested slightly with his eyes closed slightly.

He does not dare to really fall asleep, this is the instinctive vigilance of human beings to dangerous circumstances, even if he wants to sleep, he cannot completely fall asleep, instinct will prompt him to retain a conscious consciousness.

Fortunately, there was nothing wrong all night, and everyone's vigilance was superfluous, and it seems that everyone is very self-aware and has no evil intentions.

In the early morning, Mr. Zhao once again distributed food and breakfast to everyone, and told everyone to eat enough and adjust their physical strength to the best state.

Because they will have to run for their lives in a minute, and they can't do it without food and strength.

The breakfast that everyone ate was dry rice, including the four teachers, also ate raw rice, because the power in the cafeteria was cut off, so they couldn't cook cooked food.

Seeing this, Yang Dan took a few boxes of dry food and biscuits to the four mentors and offered delicious food and water very well.

The four tutors did not refuse to come, the world has become like this, it is okay to accept the sharing of students, and to hell with any gossip.

"Is there anything you can do?" Seeing Yang Shan standing in front of them and not leaving, Teacher Zhao frowned and asked.

"I want to stay here and wait for rescue, I believe that the country will not abandon us, so I will not follow you out of the cafeteria." Yang Shan directly said his thoughts.

His voice was not small, and the students in the cafeteria could hear it, and he did it on purpose.

When he said the words 'the country will not give up on us', all the students showed 'wisdom' in their eyes and looked at him as if they were fools.

"It is true that we cannot deny that the state will never give up on us, but we must be self-reliant, because our food does not allow us to sit and wait. If we stay in the cafeteria and wait for the state to help, by the time the help finds us, we will be a pile of dry bones. Teacher Zhao said with a serious expression.

"But, but I'm an ordinary person, I can't outrun the zombies, and in the face of hordes of zombies, it's difficult for you to take care of me, even if I starve to death here, I don't want to go out and become a zombie's lunch." Yang Dan's expression was a little excited when he spoke.

"Enough! If you don't want to leave, you stay, no one forces you to leave together, but we won't leave you any food, because you are a coward and don't deserve our precious food. Teacher Zhang suddenly stood up and criticized Yang Dan harshly.

This teacher Zhang is very smart, he doesn't want Yang Dan to affect the determination of other students to leave, so he immediately stepped forward to stop the debate on this topic and stifle the students' dangerous thoughts in the cradle.

In the face of Teacher Zhang's criticism, Yang Shan lowered his head and turned to leave, squatting in a lonely corner with Silly Qiang, ignoring the eyes of others.

…………