Looking at the strange light patterns that covered the sky in front of him, Chen Xi was not surprised, but happy.
Through the perception of his Divine Sense, he had already keenly noticed that the diamond-shaped crystal in his hand had a new change.
The dense purple gas in the middle of the crystal was originally in the shape of a whirlpool, but when Chen Xi's Divine Sense floated to the edge of the hall, the whirlpool immediately turned into the shape of a lotus, and the shape looked somewhat similar to the current appearance of the hall.
Seeing this, Chen Xi immediately returned his Divine Sense to his body, ending this dangerous action.
After his Divine Sense returned to his body, Chen Xi was still sitting cross-legged on the ground.
After silently adjusting for a while, he finally opened his eyes.
Forcing his Divine Sense to leave his body was still too much for the current Chen Xi.
Therefore, after just a few minutes, his face became very pale, and he looked like a patient who had just recovered from a serious illness.
However, although his face was ugly, Chen Xi could not help but smile.
Because he discovered a secret, and that was …
This seemingly ordinary crystal was actually the legendary Soul Crystal!
The so-called Soul Crystal was actually a strange crystal that could host the Divine Sense. This kind of crystal was also very rare in the Tianyuan World.
The Soul Crystal was very precious. On one hand, it was extremely rare, and on the other hand, it was a necessary material to refine Divine Sense attack type magic treasures.
In addition to being able to refine magic treasures, the Soul Crystal, as a kind of spiritual treasure, had the effect of warming and nourishing the Divine Sense.
With the environment on Earth, it was obviously impossible to breed a magical medicine that could heal Divine Sense injuries.
Therefore, this Soul Crystal was definitely a life-saving straw for Chen Xi whose Divine Sense was injured!
No wonder this hall could imprison the Azure Dragon's Divine Sense, it was obviously because of this Soul Crystal.
Thinking of this, Chen Xi had a rough understanding of the mechanism of the hall's operation.
Using the Soul Crystal as the eye of the formation to imprison the Azure Dragon, who was only left with his Divine Sense.
And the reason why He Tiangang and the others had not triggered any mechanism after being trapped for more than a month was …
They were not immortal cultivators, so they did not have enough pure True Essence to trigger the mechanism.
Therefore, this array formation and the main hall were obviously set up by immortal cultivators!
Moreover, this unknown 'immortal cultivator' was at least at the Insightful Emptiness Realm. Otherwise, it would be impossible for him to set up such a grand formation that involved the true meaning of the word 'void'.
With the Soul Crystal as the core of the formation, if not for his appearance and triggering the mechanism in the hall, the Azure Dragon who had lost his physical body would never have been able to escape the seal.
"There are also immortal cultivators on Earth?"
Thinking of this, Chen Xi suddenly frowned.
It was said that the proud dragon had no regrets, but now he was a little regretful.
He should have left Azure Dragon alive to interrogate him …
But what was done was done, and there was no point in regretting it now.
Therefore, Chen Xi could only put this question aside for the time being. Then, he closed his eyes and concentrated, trying to let his Spirit enter the Soul Crystal.
The Soul Fire once again flew out from between Chen Xi's eyebrows, and then directly flew into the diamond-shaped crystal in his hand.
After Chen Xi's Spirit flew into the Soul Crystal, a feeling as warm as the sun in March immediately enveloped his Spirit.
It was a very wonderful experience, and it made Chen Xi feel very comfortable.
His injured Spirit could only sense things within a radius of ten meters, but after his Spirit entered the Soul Crystal, the range of Chen Xi's Divine Sense suddenly expanded and covered the entire mountain in an instant.
In an instant, with the crystal as the center, Chen Xi could sense every movement in the wind and grass.
This feeling …
He had not experienced it for a long time.
Nourishing the Spirit was an additional effect of the Soul Crystal. Naturally, it would not be as fast as the magic medicine, and it would take a long time.
Therefore, at this time, Chen Xi could not help but think of the main hall.
As soon as he thought of this, a series of rumbling sounds suddenly came from the hall.
Following that, the sixteen walls began to slowly rise up and gradually close together!
The main hall changed back to its original appearance.
The Soul Crystal, which was the core of the array, could still control the main hall!
Seeing this, Chen Xi could not help but feel happy. He immediately counted silently in his heart.
He wanted to calculate the difference between the flow of time in the main hall and the outside world.
Chen Xi enjoyed the nourishment of the Soul Crystal as he counted seriously.
When he counted to ten thousand, Chen Xi thought of something again. The main hall was suddenly like a remote-controlled toy, and it slowly bloomed with a rumbling sound.
Each number was exactly one second.
In other words, he stayed in the main hall for about 166 minutes.
Before the main hall was fully opened, Chen Xi excitedly flew out of the main hall and rushed directly in the direction of the temporary laboratory.
When he brought everyone back to the laboratory, it was about half past one in the morning.
He counted ten thousand seconds in the main hall. 166 minutes, which was 2.7 hours.
According to the flow of time that He Tiangang said, if the main hall did not lose its effect, then only about two minutes had passed in the outside world …
The more Chen Xi thought about it, the more excited he became. He quickly rushed back to the oasis from the top of the mountain.
There was a quartz clock in the temporary laboratory. The answer he wanted was there.
The wind and snow were still in the sky. Thick dark clouds blocked the moonlight, so the surroundings were pitch black.
After nervously opening the storm door of the laboratory, Chen Xi saw He Tiangang and the others, who were still unconscious.
In the dim laboratory, only one energy-saving lamp was still on.
Next to the energy-saving lamp was the quartz clock that Professor He had brought.
Chen Xi walked to the table and looked down at the time on the table. He was stunned.
The time on the quartz clock indicated that it was — —
1: 55 in the morning!
When he left, the time should be around 1: 34 in the morning.
Putting aside some errors, it should be around 20 minutes.
However, he stayed in the main hall for a full ten thousand seconds.
In other words, the ratio of the flow of time between the main hall and the outside world should be about eight times. It was not as exaggerated as 1: 100.
However, even if it was only eight times the time difference, it was more than enough for Chen Xi.
One day in the outside world was eight days in the main hall.
What kind of concept was that?
Chen Xi thought about it for a while. However, he vaguely felt that something was wrong.
According to what He Tiangang said, they had been trapped in the hall for more than a month. Why was it that the time difference between the hall and the outside world was only eight times that of the outside world?
A month in the main hall should be at least four days in the outside world.
Chen Xi thought about it for a long time but could not figure it out. In the end, he could only put this question to the back of his mind. He planned to confirm it after He Tiangang woke up.
In short …
It did not matter if it was eight times or a hundred times. This time, he had really found a treasure!
After confirming the use of the main hall and the Soul Crystal, Chen Xi immediately set up a restriction in the temporary laboratory. As soon as someone woke up, he would know immediately.
After that, Chen Xi plunged into the main hall and began to use the Soul Crystal to heal the injuries to his soul.
Because his soul was out of his body, he could not cultivate.
Therefore, in his boredom, he could not help but let his imagination run wild.
Starting tomorrow, after Niannian fell asleep, he could secretly bring Yingying here.
Then, they could cultivate together as husband and wife and …
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