The gloomy sky was completely lifeless, and Ihai didn't know how those plants in the wild grew without photosynthesis... It's a new mutant plant, after all, the inedible type is deliberately marked on the survival guide.

Inside the fortress, food is actually not expensive, because although humans can't eat those plants, they can raise suckling rats and the like. And those suckling rats and some small animals are basically the food source of this fortress. Who makes rats easy to raise?

What is really lacking is plants, vegetables and fruits are basically not to think about, only fungi, and Yihai They can't buy them on the market. Of course, there are some edible wild vegetables, but the price is also very expensive, anyway, they don't want to eat wild vegetables, at least they can live on the nutrients issued by the organization whose names are not known now, but they can't fill their stomachs.

"It rained all day yesterday. The sewer system in this city is very good. ”

It rained heavily for a day and a night, but there was no water on the ground, so it can be seen that the sewer system of this fortress should be quite perfect, as for where the rain goes, it is not for Yi Hai to think about it, it is not far from the river, but there is no river directly through this fortress covering an area of 6,000 square kilometers, and the water needed for daily life should also be obtained from the rainwater.

There was no clear sky after the rain, and the sky was dominated by thick black clouds, and there was no way to tell the time except for the occasional fiber optics. The night sky, the clear sky, and so on, don't even think about it.

It's like Zero, born in a post-disaster world, even how to survive is a problem, as for the night, the starry sky, basically can only be seen in books, and it must be the kind of book with pictures, in this case, almost no one will stand up to tutor and educate those children who have no parents, Zero can only write his own name, a real illiterate.

Because of this, teaching Zero to learn has also become one of the interests that suddenly came to Yihai after coming to this world.

As a psychiatrist, Xingcai said that now everyone is overwhelmed by the invisible things, in order to prevent being affected by the spirit unconsciously revealed by Abjos, it is best to quickly find something to do that can temporarily relax him.

Of course, this is not to make everyone give up on tracking down the events of twenty years ago, as well as the affairs of Abjos.

It's just that in the intervening twenty years, too many people have died. There are so many secrets that are buried forever that it is almost impossible to find out what happened twenty years ago. And the information about tracking down Abjos, or rather, the man who summoned him using a summoning spell, is somewhat illusory.

Starstar didn't get much information, and the outer gods were too far away from everyone. There is nothing to be done about the current situation. Although the arrival of the fallen sons who harvested their lives is imminent, it is not imminent, so during this time period, Constellation has become a bridge between the four of them and the unknown organization, responsible for contacting each other and obtaining information.

She's obviously a psychiatrist, but instead of seeing people, she prefers to chat with some nervous guys and see their status, but Xingcai just looks at it like this, and doesn't treat the other party, it's the kind of person who has a rather bad taste.

Puluo often runs behind Xingcai, for fear that this off-line guy will suddenly do something to stop it, and even if he can't stop it, he can notify Yihai and Simir in advance. lest two men be completely unprepared.

Simir went to survey the terrain, because of the circle of light raised on the outside of the fortress, the city only allowed people to enter, not allowed people to go out, Simir had no way to go out, so he ran to the side of the escort every day to get close, not to mention, he really got some useful information. For example, the layout of the city, for example, shelters, for example, some bookstores that are simply not found on the map.

And Ihai is running a bookstore with Simir and holding a few books to teach Zero Learning.

Although the major is not the right one, as a doctor of occultism, he is also a doctor, and there is no problem in teaching others to read and write. The script of this world and the script of the world of Yihai are universal, so there is no need to scruple. And what Ihai teaches is not very profound, just some simple words and simple applications of mathematics.

As long as it's enough for Zero to live.

He won't be crazy to teach high math or anything, after all, in this world, there are always one or two things that can't be passed. You know, if you are forced to do anything, except for advanced mathematics.

Of course, in addition to these, Ihai will also teach some more practical things, that is, what is needed to survive in this world, combat skills. Merely.. Yi Hai himself actually doesn't have much good fighting skills, he mainly relies on that armor to be reckless, and if he really fights hard, he may not be able to defeat Simir.

"Well, actually, I can't teach you too much, this thing is generally based on talent... And I'm not much better. ”

Looking at the target not far away, Yihai and Zero both had a pistol in their hands, and they both had several cartridge casings under their feet. Of course, what is more uniform is that they do not have bullet holes in their targets. Yes, five bullets, all off target.

Simir, who was watching not far away, was already laughing.

"That's all for today's training. Simir said that good marksmanship is fed by bullets, and we don't have so many resources to get more bullets now. ”

Putting away the pistol, Yi Hai took out a long knife, which was a straight knife, similar to Yi Hai's Evolutionary Trust. It's just that Yihai's Evolutionary Truster can be used with one hand, and this long knife is obviously used with both hands.

"I asked them to help me fix this, and it can be regarded as a reward for your serious training in the past few days."

Perhaps due to her natural talent, Zero is making rapid progress in using weapons in white-knuckle combat, so Ihai is also thinking about giving her a whole weapon. Although the significance of this weapon in actual combat is not high, after all, in the absence of light, those monsters outside are basically invulnerable. Inside the fortress, everyone is basically armed with a gun, which can only be said to be a means of self-defense.

"Thank you, teacher!"

Taking the weapon from Yi Hai's hand, Zero looked very excited, but as soon as her words of thanks fell, Yi Hai disappeared from his face, no, it should be said that she disappeared from Yi Hai's face.

'Woo-woo-woo-'

The cacophony of sirens rang out in the sky, and when Ihai came back to his senses, he found himself in a strange space, and above the sky, a black sun lifted the dark clouds that had been obscuring the sky all along.

[Doctor! It's the Fallen Son! This is the harvesting space, and the selected sacrifices will be pulled into the harvesting space. 】

As I had seen in the books, when the Fallen Sons come, the chosen sacrifices will be brought into a different dimension, and this alternate dimension will continue to expand and suck in more life, and only a few lucky ones will be able to escape from this alternate dimension.