The only place in the entire city that jumped out of the way was the occasional geist or two that would raise their heads inexplicably, and then let out two terrible howls without warning. Other than that, it's like a pile of Lego toys. It makes people feel as if they don't look like the world.

"Booth, don't tell me this is going to be your great ontology......"

The puppet shook his shoulders stiffly, looking like he was shrugging.

"There is too little data to analyze. I can't guess how far it has gotten now. It may also be that other humans stranded on Earth have acquired some kind of technology to control the spirits to create such cities. ”

"Do you think there will be normal humans in this place?" Tang Yun put his hand in his pocket and wanted to pull out a cigarette to smoke. Look around, and don't mention if his smoking behavior will attract the attention of the other geists. The clean and civilized environment around him alone makes it impossible for him to do something as "unqualified" as smoking.

"I don't know, maybe there will be survivors like Aemon."

......

The two of them were swaying forward on the sidewalk, when suddenly there was the sound of running footsteps behind them.

"Catch ...... Live intruders, woo-hee-la......"

"Whew...... Whew......"

"Purr...... Mankind...... No trespassing into the city! ”

......

A small group of geists rushed straight at Tang Yun and the puppet Sibo, roaring in the same language as the Federation. It's just that there are a lot of meaningless and fast-paced whispers and the trademark ghost howl between the words.

Tang Yun and Si Bo didn't think about it, they panicked and picked a random direction to scatter their legs and escaped. One has the help of [Puppet] Crystals, and the other is the top mechanical puppet of the Apocalypse, and these stupid zombies can't catch up with them at all. In the blink of an eye, he fled to a secluded corner.

Tang Yun panted slightly, "How did they find out about us?" ”

Spore spread his hands as if he were humans, then pointed to a sign in front of them. It has a line of English characters commonly used in the federal world, "Middle School".

"This ......"

Tang Yun felt that his head was a little short-circuited, and looked around at the left and right, and there was no one around. He couldn't guess what it would be like for a group of zombies to sit in the classroom. Tang Yun raised his head in confusion again, almost all the buildings in this nest city were transparent glass structures. Through the translucent green glass wall, Tang Yun could vaguely see that several classes of students seemed to be in class.

One person and one puppet glanced at each other, and found a small door to enter the building.

The two of them walked up the escalator at the corner of the teaching building carefully, and the order inside the teaching building once again made Tang Yun, an obsessive-compulsive patient, feel refreshed.

The whole building was silent and pin dropping, and there was not a single student who was fighting or doing nothing in the building. The dark floor tiles, which resemble glass but are opaque, are clean like a glacial lake in the dry season of KW388. You can almost reflect the mosquitoes lying on the ceiling. Of course, this is just an analogy, not to mention mosquitoes in this place, I am afraid that there is not even a small ant or a small insect the size of a sesame seed.

The walls of the corridor are devoid of the photographs of scientists or great men commonly found in federal schools, let alone some inspirational calligraphy. Some are just rows of formulas and theorems printed on the glass wall. These theorems, chemical formulas, and things like that printed on the walls don't just look neat and clean. Tang Yun patiently took a few closer looks, and they were actually logical in their arrangement. Be organized.

Through the transparent glass wall, Tang Yun could see the dull gaze and blue faces of the group of students in the classroom. Previous speculations about the existence of normal human settlements were shattered.

They're geists, no doubt!

Lesson a zombie? I really saw the "ghost" alive!

Since it was a "sneak operation", Tang Yun didn't plan to suppress his curiosity anymore. Tang Yun continued to walk his zombie steps, very slowly, but very gently and carefully. Through the transparent glass wall, he found a classroom with empty seats, and gently pulled the back door of the classroom. Tang Yun also walked in with a "dull gaze" and sat down like other wandering soul students.

Maybe it was the stinking formula on his body that worked, and all the "people" in the entire classroom were still staring blankly ahead, and no one noticed Tang Yun's arrival.

There are no blackboards or teachers in the classrooms, and some are just a large computer light screen. The class looks like a math class, with some numbers from the calculations playing on a loop on the computer light screen. I don't know where to hide in the hidden speaker, and occasionally there are a few words of commentary with a stiff tone.

Tang Yun was also a top student at Songyan University in the Northern Regions, and he recognized the content of this course in a few minutes. It turned out to be Calculus......

Middle School......

Calculus......

This is Tang Yun's freshman class, and it actually appeared in middle school? A student or a glazed-eyed wanderer?

As the class progressed for a while, a semi-autonomous robot began to move between the students' seats, leaving each student with a piece of paper with some handwriting on it. Tang Yun and the puppet Sibo also got one as a matter of course.

1.y=x^2-9/x+9 dy/dx=?

2.y=x^2+2x+1/x^2-2x+1 dy/dx=?

3.y=z(z^2+1)^3,z=(x+1)^2 dy/dx=?

......

Tang Yun frowned and glanced at it a few times, and then looked at the "young zombies" around him who were struggling to write. Because these questions are quite difficult for Tang Yun. Tang Yun is good at practical practice, but his theory is weak. He didn't receive much systematic cultural education, he was born in a family, and before he entered Songyan University in the Northern Regions, he basically relied on skipping classes, self-study and Nan Guoxin. Basic mathematics, photostructure theory, and the like are all his shortcomings.

Even if it is the Tang Great Holy Son who has "divinity", he still has a little self-esteem. I even ...... middle school students Ah no, the fact that the middle school zombies couldn't compare to that gave him a great sense of frustration.

The zombie students are completely different from their classmates at Songyan University in the Northern Regions, and they are all very well organized and disciplined. One after another, some students handed in their answers to the semi-automatic robot and then left the table. The students who did not come up with an answer were still doing calculations on scratch paper, unhurried, and quite calm. Tang Yun also dropped the "broken paper" in his hand and planned to follow these classmates out. Just as he turned his head to look at the puppet Sibo, a great frustration rose in his heart again.