How big should the ‘Guixu’ be?

It should be similar to a planet, right?

No wonder Teacher Xiao Shi used the word "world" to describe "Guixu".

It is as vast as the surface world.

Xiao Shi coughed twice, drawing everyone's attention back.

"In addition, in addition to the depth, the further you go down, the wider the width of Guixu."

"Currently we have discovered a city about 5,000 meters underground."

"There are also large areas of virgin forest that have been petrified."

"Before this, we discovered countless villages."

"As for petrified forests, canyons, mountains, and lakes, there are everything you need."

"That underground world has no sun, no moon, no stars and no sky."

"It's not that different from the surface world we live in."

"We have reason to believe."

"Before the days of dinosaurs."

"On this planet, an underground civilization was once born."

"A vast world lies beneath the surface of this planet!"

bell--

The get out of class bell rang.

Xiao Shi turned off the projector and said with a smile, "Okay, that's it for today's class."

"About 'Guixu', it needs to be kept strictly confidential."

"You are not allowed to reveal it to anyone outside the academy, not even your closest relatives."

"If you violate it, you will be severely punished once discovered."

"Then, get out of class is over!"

Get out of the classroom.

Luo Yan still felt a little unreal.

Beneath the pole, there is the entrance to another world.

Was the construction of these underground cities inspired by the "Guixu"?

Luo Yan's thoughts were wandering.

Suddenly he was stopped by Wei Fenghua.

"Take a step to speak." The dean said with a serious expression.
Chapter completed!