Running from the underground river to the seaside was indeed somewhat beyond Lu Qing's expectations.

Even after flying up, he actually arrived at the mouth of the sea.

Here, a big hole was opened at the edge of the continental shelf extending eastward on the coastline of Donghai County. The seabed slope suddenly increased.

From this big hole, even a piece of sunshine is hard to shine into the sea.

Without rushing to continue exploring deep into the sea, Lu Qing checked at the entrance of the cave.

The concentration of spiritual energy here has reached the level of the fifth-level spiritual vein. However, he could not see anything unusual at the entrance.

At first he thought that there was something special at this entrance that could make some changes in the sea water flowing in from the entrance, become purer, and be given a strong concentration of spiritual energy.

However, it seems that what flows from here is not ordinary water, but naturally with strong spiritual energy.

After confirming this, he left the entrance and entered the seabed.

He felt a special undersea current, and the target flowed westward from the deeper seabed and into the cave.

Lu Qing moved up and down curiously and found that there were very ordinary sea water around him, and only the water of this current was filled with strong spiritual energy. This place was like a spiritual energy channel at the bottom of the sea, and there were quite a lot of marine creatures living nearby.

This is a matter of course. In fact, when Lu Qing walked along the underground spiritual river, as the concentration of spiritual energy increased, the more aquatic creatures he could find. Many of these creatures, even many of them, have become spiritual beasts under the nourishment of the rich spiritual water.

However, in the underground river stage, the space is too blocked, and the size of aquatic organisms is generally not large. Otherwise, if the space is too small, it is indeed difficult to survive. In the sea area at the exit, the size and intensity of the aquatic organisms that survive around the submarine spiritual channel will suddenly become much larger.

The huge sea fish have semi-transformed into human form; the huge cetaceans live here; swimming a little further to the deep sea, you can even see some settlements of the intelligent sea tribes. They have built special buildings that can float in the sea water and settled here...

To be honest, Lu Qing didn't expect the splendor of the underwater world.

He has never explored the underwater world so deeply and meticulously like he is now, and he has never thought that the underwater world in the world of practice is so colorful.

The difference between sea races and land races is even greater than that between demon races and humans. Even in the Linhai area, such as Donghai County, the connection with the undersea races is very rare.

The main reason is that everyone’s previous needs are too different. The things that the sea race needs may not have at all, and vice versa. At the same time, the sea race is not suitable for the land environment, so humans and demon races are also not suitable for coming to the underwater environment. The connection between the two sides is sparse, which is also very natural.

At the same time, Lu Qing also discovered that the level of civilization of these undersea settlements is very low. Lu Qing spent more than half an hour staying next to a fishman settlement and observing it. They communicated with each other very little, their language was underdeveloped, and their level of civilization was very low. At most, they only reached the point where they had a leader and everyone listened to the leader.

Lu Qing even suspected that even these undersea settlements had very little communication with each other. They had no currency, and Lu Qing did not see general equivalents like spirit stones, and there was no transaction.

Of course, it is also possible that Lu Qing didn’t have enough knowledge and did not observe for a long time.

But he really doesn't have much time to stay here and do scientific observations for a long time.

In fact, he has spent several times on karma to replenish the time after getting here. The price of replenishing the time after getting out of the body is still within the scope of his acceptable range, but it is actually quite expensive.

He did not continue to observe and continued to go deeper.

Soon, he felt the concentration of this spiritual current and increased to the sixth level.

This is expected, but after truly having this feeling, Lu Qing was still inevitably surprised.

The level of spiritual energy of the sixth-level spiritual vein...

There are only three turtles in Yan State. Yuyan Mountain was strengthened by Lu Qing several times with exchange items, but it has not reached this level. It is still a fifth-level spiritual vein now. The entire Yan State, including Yandu, Yunxiao Mountain in Wuzhou, and Luoyun Valley in Xingzhou, can reach this level.

However, when he arrived here, Lu Qing also noticed a situation - he had not seen any undersea races nearby.

Lu Qing didn't think it was because they didn't want to come here.

The more spiritual energy the concentration, the more attractive it will naturally be to any creature that needs spiritual energy to practice.

Since it’s not that you don’t want to come, you may just not dare to come.

At this point, Lu Qing has a guess.

He continued to move forward, and soon what he saw proved that his guess was indeed true.

There is a huge marine city here.

At the same time, Lu Qing also felt that he had come to the source.

The end of this spiritual current is at the center of this marine city.

Entering it, just in terms of scale, this marine city will not be smaller than Yandu.

Due to the particularity of the environment, this undersea city is a completely three-dimensional city. In the city, there are things like roads in human cities. These roads are not only connected in all directions, but are interlaced into a network within a space. They look very special from a distance and have a very obvious design sense.

At the same time, on the edge of the city, Lu Qing also saw some resource points like farms, which were planned to look like cubes. In this water cube, some specific aquatic organisms are cultivated, and there are even some underwater spiritual plants. I don’t know whether it is used as food or medicinal materials.

Inside the city, the overall architecture also maintains a consistent style and is very distinctive.

A large number of undersea creatures are walking in the city, just like humans are shopping in the city.

There will be a relatively obvious class differentiation between them, which is basically based on race. Shark people, whale people, and half-body fishmen with similar mermaids, with a higher status; while some sea tribes with incomplete transformations have a lower status.

Of course, some powerful individuals can break through the limitations of this race.

While admiring the magnificent scenery of the undersea city, Lu Qing moved towards the depths of the city center.

On the way, he thought about it carefully. Is this underwater city that he doesn't know yet, and it's the Yan State, and the Lu family can use it? Not to mention anything else, if it can open up the trading channel, it's actually quite good.

Although there are great differences between the two sides, after all, it is profitable to have such a large size here.

At the same time, at this time, Lu Qing also threw all the ideas that the undersea races were uncivilized civilizations that he had thought before. Whoever saw such a scene and still thought like this would be stupid to the sky.

———

Another chapter tonight.
Chapter completed!