"The fourth floor is finally here!"

Su Chen was very excited.

However, he also had doubts.

The Tongtian Soul has not yet reached its peak stage.

This time, will the Eternal Life Tower bring him a more powerful soul?

Will it alleviate the injury to his imperial bone?

With anticipation, Su Chen's thoughts slowly drifted towards the Tower of Eternal Life, stepped into the void, and reached the fourth floor.

The door is fully open.

The area inside the main hall is not large. It looks like a room of more than a thousand square meters. This is much smaller than the small world-like places on the first few floors.

There were complex patterns on the floor of the room. Su Chen took a quick look and saw something that looked like Bagua, with many small lines carved on it, and something that looked like nine palaces. The same was true for the surrounding walls, with different colors.

"This room looks like a practice room or an alchemy room."

Su Chen inquired around.

When he walked into it.

In just a short moment, Su Chen felt as if he was walking in another void. He could not feel the breath or laws of heaven and earth. It was like a completely closed space.

"How strange."

"I am in this room, even if my combat power is at its peak, I probably won't be able to exert any strength."

"Space, the breath of heaven and earth, everything changes."

Su Chen is getting more and more strange.

In the outside world, he can easily create magical powers, but here, he can't create even a single wave.

It's like the space energy outside is very low, but the space energy in this room is tens of thousands or hundreds of millions of times.

It's a bit incredible.

"What does this place have?"

Su Chen looked around and walked forward step by step.

The room doesn't feel big, but in fact, the height of the room is about thirty meters, and his soul body is still very small here.

When Su Chen walked to the center.

The lines of the Bagua pattern began to light up from under his feet.

Layer after layer, until the entire room was filled with light, and at the center point, wisps of emerald light bloomed. A small sapling soon appeared, and gradually grew to become a twenty-meter-tall tree.

This was the first time Su Chen had seen this kind of tree. The trunk was more than one meter thick, shaped like a cube, and the leaves above were rhombus-shaped.

The trees were all green, and Su Chen could feel the huge vitality.

"Welcome to the world of tech trees."

Su Chen sensed a hint of thought.

Tech tree?

Is it saying hello to me?

Is it a special life form?

Su Chen was very surprised. He walked near the trees and looked around.

Every side of the tree trunk is like a mirror, and you can vaguely see the outline of your own soul body.

"Tech tree?"

"What's the meaning?"

"Is it some technological supplies?"

"This is a corpse realm, a purgatory for cultivating immortals. Does it still need technology?"

Some technological means cannot compete with immortal cultivators, but Su Chen knows how can the technology tree from the Eternal Life Tower be simple?

How to communicate with it?

Su Chen tried communication, mind control, etc.

After various attempts, to no avail.

"As for technological products, does reinstalling armor count as technological products?"

Su Chen recalled the production process of heavy armor.

Suddenly, Su Chen saw something flashing in front of him.

On one side of the tree trunk, Su Chen saw heavy armor.

Heavy armor is dismantled and reassembled.

Various detailed functions are displayed next to it.

Su Chen's eyes grew bigger and bigger, and he was a little shocked.

"Is there a higher level of armor?"

The tree trunk in front of me is like a screen, with pictures flashing constantly.

"Star Armor."

"Tailong Armor."

"Hunyuan Heavy Armor."

"Kilin Treasure Armor."

"..."

However, these pictures are all gray.

Su Chen somewhat understood that the technology tree turned out to be this kind of thing.

These armors look extraordinary.

"I want to see Tailong Armor."

Su Chen exchanges ideas with the technology tree.

The gray pattern of the Tailong Armor is displayed in the front. There is no introduction except the name of the armor.

"Query production drawing?"

Su Chen asked again.

Soon, a thought answered Su Chen.

"To open the technology tree, you need 10 billion local gems."

Puff puff......

Su Chen almost squirted out.

Ten billion gems?

What's that quantity?

Su Chen even suspected that if they were piled up, there might be huge changes in the sky.

The technology tree is a scam.

Su Chen's mouth trembled.

Not to mention anything else, just looking at the appearance and complexity of Tailong Armor, it must be many times stronger than heavy armor.

It can be concluded that the armor displayed in the technology tree must be calamity level armor.

Tribulation-level armor, that is, Tribulation-level armor, such as the Silver Moon Armor, is a first-level Tribulation-level armor, or even a Dacheng-level armor. After wearing it, the combat power will reach the fifth-level level in a short period of time.

There is no doubt about the strength brought by armor. Take the war between Jufeng and Tianwang Palace as an example. The heavily armed legions killed countless enemies.

Although the more than 600,000 heavily armored regiments were almost destroyed, these 600,000 plus soldiers killed at least 10 million enemies.

"Ten billion gems."

Su Chen continued to try to communicate.

The technology tree didn't respond at all.

So, Su Chen left the Tower of Eternal Life.

"This thing is in my sea of ​​consciousness, and it still wants to take my gem?"

Su Chen was a little angry.

In my body, I have to spend my money to give you something. What kind of thing is this?

Not listening to orders.
To be continued...