I'm invincible since the end of the world

Lin Xinghai followed Lina and others and had gone 9 kilometers deep into the cave.

If he didn't look up, he would really think he was walking in a dense forest.

Because there are tall trees all around, there are even some insects and animals.

This can't help but make Lin Xinghai lament the elves again. This talent of changing the environment is really terrifying.

When everyone turned a corner along the cave, Lin Xinghai's eyes couldn't help but narrow slightly, because there was a bright light coming from the front.

Although there were various luminous plants along the way in the cave they were walking in, which could be used for lighting, the overall light was still relatively dim.

But in the area ahead that Lin Xinghai saw at this time, the light emitted was not much different from the sunlight from the outside.

Seeing this scene, Lin Xinghai was curious and couldn't help but take a few steps quickly.

Finally, they passed through the lengthy cave and arrived at the Elf's residence.

Looking at the scene in front of him, Lin Xinghai couldn't help but slightly widen his eyes.

This underground space is really very large, and its area is almost the same as that of the Donghai Base.

And just like inside the cave, it is also full of trees, and the trees here are very tall, at least hundreds of meters tall.

The tree houses are built on tree trunks, as if they are integrated with nature.

The huge light source that Lin Xinghai just saw came from above his head.

There is something like a sun hanging on the top of the cave, which shines and heats, providing sufficient sunlight for the growth of these plants.

And the roof of the cave is painted blue, and there are some clouds floating on it. If you don't look carefully, you will really feel that it is a blue sky and white clouds.

Looking at the scene in front of him, Lin Xinghai really admired these elves more and more for their environmental transformation technology.

He couldn't help but think about the environment of the earth. After the catastrophe, there were basically no plants on the ground, and now there are still some extremely harsh climates from time to time.

According to expert predictions, it will take at least 100 to 200 years to return to an environment suitable for normal human growth.

If these elves were allowed to transform, Lin Xinghai felt that it would be completed within a few years.

When he was having some random thoughts, Lina on the side introduced: "Senior Lin Xinghai, have you seen the tallest tree in the distance? That is our ancient tree of life."

Lin Xinghai looked in the direction pointed by the other party. There was indeed a giant tree there, reaching a height of one thousand meters, almost touching the dome of this huge cave.

Of course, height is not the most important thing. After all, there is no shortage of tall trees on the Elf Plane, but the tree in front of him gave Lin Xinghai a feeling of vitality.

No, it's not a feeling. Lin Xinghai couldn't help but widen his eyes as he looked at it.

"The power of rules!"

Yes, Lin Xinghai felt the power of rules permeating the surroundings from the ancient tree in the distance. It should be the rules of healing and life, and it felt very huge.

But how can a tree still master the rules?

This was a bit beyond his knowledge.

"Amazing, I didn't expect to recognize it at a glance. Moreover, there are multiple rules surrounding the ancient tree of life."

"If you stay near the Ancient Tree of Life, you can recover from your injuries, speed up your cultivation, and improve your understanding."

"And the patriarch can also activate the ancient tree of life and use it to defend against enemies." Lina said with some pride.

Listening to Lina's introduction, the look of surprise on Lin Xinghai's face became even more intense. The ancient tree of life in front of him was more powerful than he imagined!

No wonder it is regarded as a sacred tree by these elves.

Just as Lin Xinghai was feeling emotional, he heard shouts coming from a distance.

The elves in the distance were rushing towards their direction quickly, and they were all talking excitedly.

It's just that Lin Xinghai has never learned Elvish, and they didn't deliberately use their senses to communicate, so Lin Xinghai couldn't understand them for a while.

"What are they talking about?" Lin Xinghai couldn't help asking Lina who was standing aside.

"They are welcoming you." Lina said with a smile.

As if to confirm her words, several elf girls came to Lin Xinghai with flowers in their hands.

Looking at the flowers handed to him, Lin Xinghai took them with a smile, mobilized his senses, and said, "Thank you!"

Listening to the unfamiliar words spoken by Lin Xinghai, the elves were stunned for a moment, and then they realized that the two sides did not understand each other's language.

Then those elves who had reached the realm of gods and demons quickly used their senses and said it again.

"Friends of the human race, welcome."

"Thank you for the healing potion."

"The nectar wine we have here is very good. I brought some here. Human friends, would you like to try it?"

Seeing these elves surrounding them with enthusiastic faces, Lin Xinghai quickly responded with enthusiasm on his face, trying his best to express his goodwill.

However, Lin Xinghai was really not good at dealing with this situation. Fortunately, it didn't last long before the elves gathered here parted ways.

A group of older elves came over.

Feeling the aura emanating from the opponent's body, Lin Xinghai was shocked because all of these people were at the realm level.

"Hello, Great Elder!" Lina beside Lin Xinghai quickly said respectfully, while also reminding Lin Xinghai.

Elder Fabio nodded to Lina, then looked at Lin Xinghai and said with a smile: "Human envoy, thank you very much for the healing medicine you brought us. I hope the friendship between our two races will last forever."

"You're welcome. I'm doing this for mutual benefit and win-win cooperation!" Lin Xinghai responded with a smile.

Seeing Lin Xinghai's attitude, Elder Fabio was more satisfied. He nodded and said: "Yes, win-win cooperation. In addition, according to the resolution of our elders' council, as long as you bring enough healing medicine, we can open more exchange items for you."

"In addition to the elixir that improves cultivation, you can also exchange here for cultivation techniques, combat secrets, and strange objects that assist in understanding the rules, as well as various weapons and equipment."

"Especially our weapons, which are all made by dwarf craftsmen and are quite sophisticated."

"You can even exchange for spiritual tools used by rule realm masters, which can quickly improve the strength of human masters."

Listening to the words that came out of Fabio's mouth, Lin Xinghai's eyes became brighter and brighter.

What the other party said were all good things that they didn't have!

Especially the spiritual weapon that the other party mentioned at the end, which can only be used by the strong in the Rule Realm.

Although Lin Xinghai has never seen this thing, he feels that this kind of weapon should also greatly improve his combat power.

"Thank you very much for the support of all the elders! Don't worry, I will go back tomorrow, and I will be able to send the first batch of healing medicine in 5 days at most." Lin Xinghai said, patting his chest.