"Could it be that this place wasn't part of the sea?" This was the thought that popped up in his mind after seeing this magnificent water city.
Around this water city, there was a trench surrounding the city. However, this trench felt like a moat on land.
Searching along the city wall, he quickly found a city gate. Looking at this huge and thick city gate, Cheng Yu believed that this was originally a land city.
However, Cheng Yu didn't think too much about it.
Because of the restriction on the city wall, Cheng Yu thought that entering the city wouldn't be so simple. However, the strange thing was that this city was filled with restrictions everywhere, but there was no restriction on the city gate. This was really strange.
However, this was also good. Otherwise, he would have to think of a way to enter the city.
The treasure light that soared into the sky had already appeared for a long time. He also didn't know how long this thing would last. Otherwise, with this city being so big, even if he entered, he wouldn't be able to find where the treasure land was.
Although Cheng Yu wasn't blocked by the restriction at the city gate, there was still a kind of water barrier. Therefore, after Cheng Yu entered the city, there was no water flowing in.
At this moment, Cheng Yu raised his head and saw the seawater flowing above the city, but it wouldn't enter the city at all.
From this angle, this place was not only magnificent but also very beautiful.
However, Cheng Yu wasn't interested in paying attention to this.
Instead, he kept staring at the treasure light and rushed over.
He also didn't know when those people would appear here. However, before that, it would be best for him to take away all the treasures
However, when Cheng Yu found the place where the treasure light was, he was immediately stunned.
The treasure light was actually directly shot out from the square of this water city. However, at this moment, he could clearly see that the white light didn't only appear in this place.
Five rays of light shot out from five different directions, and each ray of light shot at the five spots on the square where the crystals were placed.
The five crystals once again shot out white light towards the center. Finally, the five rays of white light converged into a huge treasure light that soared into the sky.
"Could this be a formation?" Cheng Yu looked at this strange scene and didn't understand what it meant.
However, according to his understanding of formations, after observing the situation, this seemed to be a strange formation.
However, Cheng Yu had no idea what this formation was used for.
"I have to go there and take a look!" Looking at the white light coming from five different directions, Cheng Yu did not dare to rashly enter the formation, afraid that something terrible would happen
Therefore, Cheng Yu flew towards the direction where the white light was coming from. He wanted to investigate what was going on with the white light.
Cheng Yu traced the source and discovered that the white light was shot out from a tall pagoda-shaped building.
Ever since he entered the water city, Cheng Yu had always been baffled. Because he didn't see a single human here. So much so that he didn't even see any other living beings.
However, there were so many fierce beasts outside of this water city. This was really a strange thing.
However, at this moment, Cheng Yu was standing at the bottom of the pagoda. Looking at the white light shooting out from the top floor, he didn't hesitate as he pushed open the door of the pagoda and walked in.
Entering the tower, it was very spacious inside. Other than the spiral staircase, Cheng Yu did not discover any other items.
Cheng Yu slowly walked up the stairs with endless doubts. Although there didn't seem to be anyone here, it didn't mean that there was no danger here.
Being careful is the best way to sail a ship for ten thousand years. This was an unchanging truth.
When he reached the second floor, there was nothing here. Thus, Cheng Yu continued to the third floor, then the fourth floor, the fifth floor, the sixth floor, and finally, Cheng Yu entered the ninth floor.
If Cheng Yu's estimation wasn't wrong, the white light should have shot out from the ninth floor.
The ninth floor was different from the eight floors below. There was actually a wooden door here.
Facing this wooden door, Cheng Yu raised his hand but didn't dare to push it open. He was afraid that if he pushed the door open, he would encounter danger.
However, Cheng Yu wasn't such a timid person. He needed the Immortal Bone Warriors to help him take the lead. Cheng Yu only hesitated for a moment before pushing the door open.
Creak!
With a gentle push, the door opened immediately. However, at this moment, a powerful heatwave rushed out from within.
Cheng Yu's expression changed as he quickly dodged.
When the heat wave hit the wall, it actually dissipated without a trace!
At this moment, Cheng Yu looked into the room and saw a huge Fire Spirit Crystal placed inside. However, what made Cheng Yu curious was that although this Fire Spirit Crystal was emitting heat continuously, it wasn't like ordinary Fire Spirit Crystals that were wrapped in flames.
However, around this huge Fire Spirit Crystal, there were a lot of white pure Spirit Crystals.
"Strange. Why do I feel that this Fire Spirit Crystal seems to be absorbing energy?" Cheng Yu didn't go near the huge Fire Spirit Crystal. Instead, he walked around the surrounding Spirit Crystals. Especially when he reached the place where the white light shot out, he stayed behind to observe. He discovered that the white light actually had energy moving.
Previously, he had always thought that the white light came from here. However, from the looks of it now, the white light seemed to have shot out from the plaza.
"What exactly is the meaning of this? Why did the people who lived here build such a strange thing? " Cheng Yu looked at the treasure light soaring up to the sky from the plaza through the white light. He then looked at the other four pagodas that were also shooting out white light. His heart was filled with doubt.
"This Fire Spirit Crystal is indeed absorbing energy. From the looks of it, these pure Spirit Crystals outside are assisting the Fire Spirit Crystal in absorbing energy!" Cheng Yu looked at the Spirit Crystals surrounding the Fire Spirit Crystal and said.
"Could this be a Spirit Gathering Formation?" Cheng Yu thought for a moment and said.
A Spirit Gathering Formation was a very common formation in the Cultivation World.
However, although a Spirit Gathering Formation was very common, the Spirit Gathering Formation that was set up in different places were all different.
Therefore, in this world, there were many kinds of Spirit Gathering Formations. As long as it was a formation that could gather spiritual energy, it could be called a Spirit Gathering Formation.
Although Cheng Yu had seen a lot of Spirit Gathering Formations, this was the first time he saw such a Spirit Gathering Formation.
Different Spirit Gathering Formations had different effects on gathering spiritual energy. Cheng Yu had never personally tried this kind of Spirit Gathering Formation, so he didn't know how effective it was.
However, Cheng Yu was puzzled. Since those people had set up a Spirit Gathering Formation here to help the Fire Spirit Crystal absorb energy, what was their purpose?
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