I can synthesize everything in the end

Chapter 74 The King City of Underground Humans!
Twenty kilometers, that's [-] meters!
The deepest trench on earth is the Mariana Trench, which is only more than 1 meters!
And Jianglong actually penetrated twice as deep as the underground Mariana Trench!

But this is nothing compared to the radius of the earth of more than 6000 kilometers!

Jiang Long sent a few zombies out from the space to explore the way forward, while he himself took out the map and looked at it carefully.

"This is a bit wrong! It's really troublesome!"

Jiang Long thought.

What's wrong and troublesome is that the direction leading to this small road is not where Jiang Long's goal is, that is to say, it doesn't lead to that cave.

The direction of this road is an underground city built by humans 300 years ago!

That is, the underground king city mentioned in the Zombie Queen's Notes.

But now, in that royal city, Jiang Long could already imagine that all of them must be zombies!

Although it is a good thing to have zombies, the key point is that the zombie king mentioned by the zombie queen should be in Wangcheng, which is not a good thing.

"These are all speculations, let's see first!"

Jiang Long stopped and waited for the news of those zombies.

Those zombies continued to walk forward, and after walking for a while, they suddenly found that the road ahead was tightly blocked by big rocks.

So, Jiang Long also followed the path of the zombies to come to the stone, and called number one out.

"Number one, push the stone away. But lightly so as not to disturb anything else, just enough for a person to pass."

Jiang Long ordered.

No. [-] received his order and slowly pushed the stone through a gap that was as wide as one person.

Jiang Long looked inside and saw a scene that shocked him.

It was a wide space, with a flat rock on top, with no end in sight, and some magma falling from the top to the bottom in the distance.

The space is filled with a large number of glowing rocks. These glowing rocks combine with the falling magma to illuminate the huge space a little bit.

Jiang Long seemed to have figured out what this place was.

"This should be located in a large space at the junction of the crust and the mantle. The rocks above are very complete, but there is not a lot of magma below, and the ground is relatively flat, which seems very suitable for human habitation."

The thinnest part of the earth's crust is [-] kilometers, which has been calculated, and Jianglong is now [-] kilometers below the ground, probably at the edge of the earth's crust.

Jiang Long didn't pay attention to the zombies, but asked No. [-] to make the gap bigger again, and then let a few zombies enter it.

After confirming that there was no danger inside, Jiang Long also went inside.

His current position is regarded as the highest point in this space, no wonder there are no zombies!
Looking down through the night vision glasses, Jiang Long saw an underground city.

This is Wangcheng!
It is said to be a city, but it is actually a combination of buildings, surrounded by a tall wall outside.

These buildings are all made of stone, and they look relatively simple. Most of the buildings are only one floor high, but the number is very large, clustered next to each other.

From this point of view, there must have been many humans who chose to go underground 300 years ago, and it may be the result of a common choice by an entire city.

After all, when the zombie virus just broke out, the whole world fell into chaos and panic.

Even if the area where these humans are located is not invaded by purple gas, they will worry about being attacked by alienated humans.

And zombies will not take the initiative to go underground, so for them, going underground to avoid this disaster is perfect!

Although the underground life is definitely not as good as the ground, but no matter how hard it is, it is better than having no life to enjoy.

After these modern people came underground, it would not take a few hundred years, but only a few decades, for them to discard some habits and become more suitable for the underground.

In this new environment, an underground civilization with a different surface was born.

Hundreds of years have passed, and the oldest generation of these new underground humans has passed away one after another, and the new generation has become more adapted to life here.

Jiang Long has seen this kind of story in many movies or TV series, so he doesn't find it strange.

Between the buildings and buildings in this underground royal city, it is obvious that many zombies are walking or stopping, wandering among them.

"The king-level zombie mentioned by the Zombie Queen is probably in the royal city. I don't want to go deep into it until I figure it out. There are still many zombies in the caves and corridors. I will go to grow them first. It's your own strength."

After Jiang Long made his plan, he backed out and asked No. [-] to push the stone back again, sealing the hole leading to the king's city again.

It is estimated that there are more than 20 zombies in and around the cave.

If all these zombies were swallowed up, Tong Tong and Ke'er could even directly rise to the tenth rank Wang Ji.

At that time, re-entering the royal city will be regarded as a guarantee.

But now, it is still a steady and steady game, after all, it is not a day's cold to freeze thousands of miles.

"The most urgent thing is to find that low cave first."

Jiang Long sat down on a high place and observed the space carefully.

"The underground zombies should be there."

Jiang Long took a look to see if it was the place where a large stream of magma fell.

"So the Zombie Queen is unlikely to run towards that place. She should have left in the opposite direction. Then I will make a blind guess. The direction of the cave should be over there."

After Jiang Long made sure, he drew it with his brush.

After confirming the direction, Jiang Long sent out the zombies under his command and asked them to search in that direction.

In this space between the earth's crust and the mantle, Jiang Long actually saw plants in some places!

This is a plant that grows underground!
Jiang Long looked a little strange.

These plants grow in the open space outside the royal city, and it can be vaguely seen that it is planned land.

Jiang Long speculated that this was probably the place where humans who entered the ground used to cultivate plants or grow fruits and vegetables.

"It's amazing!"

Jiang Long took a deep breath. For people who are used to living on the ground, the air here always smells weird. He can even smell a little bit of lava. Maybe it has a little bit of it. poison!But Jiang Long felt that the oxygen content in the air here seemed to be higher than that on the ground!
(End of this chapter)