"Thruster 4 is out of order! It has stopped running!"

In the pipeline at the bottom of the mobile city, the practitioners guarding here preach to the parliament.

Then an explosion sounded, and the fire devoured a corner at the bottom of the city, and a large number of staff fell down with the wreckage.

Whoosh!

Several auras quickly stabilized the workers who were blown out in the air, and supported the damaged mouth below with auras to prevent the imbalance of the city.

Gradually stable in the city, without waiting for everyone to breathe a sigh of relief, the hot-air balloon above exploded because it came into contact with the fire splashed out by the explosion!

This big bang directly made the mobile city out of balance, and a group of spiritual practitioners have been unable to stabilize the rapidly declining city.

If the city falls down at this speed, it will be smashed into pieces.

Liu Wei made a move. His true Qi can catch the falling City, but his strong true Qi damaged the bottom of the city.

Seeing this, it can only be ye Chen. Ye Chen mobilizes his Qi. Ye Chen's Qi is like cotton, catching the falling City, gradually strengthening control and gradually integrating his Qi with the city.

Then, under the control of leaf dust, the city fell steadily on the water surface below, and slowly flowed to the shore driven by the true Qi of leaf dust's water attribute.

Half an hour later, the mobile city landed, and everyone was really relieved.

"Ye Chen, we survivors owe you another big favor." Both Liu Wei and speaker Lei expressed gratitude.

"Nothing. Next time you encounter difficulties, just tell me directly. I think you can do it." Ye Chen replied.

Ye Chen didn't watch the play, but thought that the mobile city could really fall down by its own strength.

"The machines you ignore will fail. At their current level of scientific and technological civilization, the failure rate of their machines is much higher than that of practitioners." Order speaks.

"Yes, I ignored this. It seems that their technology is still not mature enough." Ye Chenxin's vocal tract.

Fortunately, the failure this time did not have a great impact on Dacheng. The thrusters were originally needed temporarily. They were not needed when moving on the ground, so the city repaired the damage while moving.

With the advance of the mobile city, the interior of the channel is more and more spacious, and the ground is more and more flat, which makes people feel like moving on the plain.

At this time, a more incredible scene appeared. There was a faint setting sun in the air. With the rising of the setting sun, the sun also appeared on the ground.

There are large purple plants growing in front, and even a city appears in the distance!

"This is the real residence of the medayaks in the underground world, a city built underground." Order speaks.

"It's spectacular and a magnificent city, but it lacks vitality." Ye Chen also said.

"Is that sunshine? How is that possible?" Countless practitioners looked at the sun in the sky and said in surprise, but they didn't feel that the sun released any energy.

"No, an artificial gem, printed on the top of the dome to absorb the essence of the earth, and then turn the essence into light." Order said.

So make complaints about the order of the leaves and the wholly intact Parliament.

Now some practitioners have gone to the ground to observe the green plants in front. The mobile city also stops in front of the green plants to avoid danger.

Through the research of mobile city, it is found that these purple green plants are edible, so mobile city speculates that the medayak people live by eating them.

But then came the gem hanging on the dome, which soon went out, and the underground world fell into darkness again.

After consulting Ye Chen's proposal, the Council discussed again and made a decision to temporarily stop the mobile city and send practitioners to explore the city.

So ye Chen led a dozen strong spirits and speaker Lei to enter the city through green plants.

When flying over the green plants, the green plants on the ground now reflect a purple dark awn after a short exposure of the gem light. As the practitioners brush over from the sky, the purple light spots are also brought into the air.

For Chihong, who has been observing on the city terrace, it is like entering a fairyland. Everything is so beautiful.

"Your Highness, your intuition tells me that our journey will not be very successful. Maybe the real danger is just beginning." Liu Wei said in a deep voice behind him.

Now it has been proved that the legend is true. Medayak exists, so does the cave sender, and there is a mysterious and greedy black dragon. It is extremely difficult to get back the treasure for fear of Ye Chen's assistance.

"But we have no choice but to do so. Either take the treasure back or bury it here." Chihong, who has always been cowardly and unspeakable, showed unprecedented determination at this time.

It seems that Liu Wei got the shadow of the emperor of the red flame empire.

It was also at this time that Liu Wei knew why the emperor of the red flame Empire chose the princess as the heir, because the princess is very much like the emperor. If the princess can become stronger, with perseverance and courage, it is very possible to rebuild the red flame empire.

"We must take back the treasure, even if all of us are buried here. As long as the princess is there and the treasure is there, there is hope for the restoration of the red flame empire!" Liu Wei secretly made up his mind to take back the treasure belonging to the Empire at all costs!

On the other hand, more than a dozen people of Ye Chen have leapt over the green planting area and entered the scope of the city.

The city is built on a highland. Like most cities on the ground, it is built close to the mountain, easy to defend and difficult to attack. Judging from the size of the city, it contains at least millions of medayaks.

"Where have they all gone? There is nothing in their perception and there is no anger."

"But the city is very chaotic. Like the outside, it retreated in panic." The practitioners entering the city wondered.

In the central King City of the city, the group saw a statue made of a kind of black jade. The sculpture was lifelike and stood in front of them like a living creature.

The people looked up at the giant beast in front of them, and their intuition told them that this was the legendary black dragon!

"Yes, it's the black dragon, but I don't know whether he has anything to do with the dragon clan." Order said.

"They worshipped the black dragon and worshipped it as a God in exchange for its shelter. They just didn't know whether the black dragon had given them shelter at the time of the disaster." Ye Chen wondered.

When ye Chen planned to disperse the group and explore the city in detail, a practitioner suddenly began to lose his aura and become violent.

Other practitioners were also aware of his changes.

"Coase, what's the matter with you?"

"His aura has become so strange!" When others perceived the situation, they came forward to help the latter.