The "Xuanjing" space is very strange, there is no sun shining here, but the sky is exceptionally bright, with white clouds floating and birds soaring. At this time, the ground where everyone was running was a wilderness covered with flowers and plants, but here, they could clearly see the undulating mountains in the distance, as thick and majestic as an entrenched dragon.

Along the way, Long Xingyu used his body technique to the extreme, and only then did he barely keep up with the pace of those seniors. After the three senior elders in front of them found this, they couldn't help but be a little surprised, and a little admired, you know, at this moment, they are also using their speed to the extreme, but Long Xingyu is far inferior to their strength, and they can actually keep up with them, which makes them very surprised.

It took nearly an hour to rush so quickly, and everyone had already run out of more than a hundred miles, although there was a lot of gap compared with the speed of those cars in the outside world, but after all, this was done by manpower, far beyond the limit that people in the outside world could reach, and at this time, everyone did not feel out of strength. Just as the crowd was running near one of the rivers, the three elders also stopped.

In fact, before that, Long Xingyu had always wanted to ask a few seniors some questions, but because he was desperately following, he didn't have time to ask. At this time, I saw several senior elders stop their figures, although they had doubts, they also stopped.

"A few seniors, why don't you continue to hurry. Long Xingyu wondered.

"Because you can't hurry for the time being, you are in the sky now. Elder Changfeng pointed to the sky to the east.

Long Xingyu looked at the sky with some confusion along Elder Changfeng's fingers, only to see that the sky, which was originally very bright, began to change orange and yellow at some point, from far to near, from east to west, little by little.

Taken aback, Long Xingyu frowned and asked, "What's going on?"

"Outside, it was still evening, and the sun hadn't completely set, so the space was still bright. Now that the sky has changed color, it means that the sun has completely set outside, so the sky here will change with it. And in this space, every time the sky changes, the heaven and earth energy in this space will become a little violent, and if you continue to rush at this time, you may encounter an energy storm, which will be very dangerous at that time. So normally, no one would be out there at such a time. Elder Blaze explained.

"There is also such a strange thing, the sky here will change with the movement of the sun outside, and there will be some energy storm when the sky changes, this is really a new thing. Long Xingyu thought with some surprise in his heart.

Immediately, Long Xingyu felt a trace of abnormality, the entire heaven and earth seemed to produce a trace of rhythm, and the aura energy between heaven and earth also changed at this moment, and the fluctuations were rising, just like the waves in the water, at first they rippled regularly, but it didn't take long for them to become unstable, but in a few minutes, the energy between heaven and earth seemed to emerge with a trace of rage, and then, the entire eastern sky instantly dimmed, and a deep black abrupt appeared, as if opposed to the original light, dividing a clear dividing line in the sky。 Half light, half dark, like an old enemy from time immemorial. It was only then that the darkness expanded dramatically, suppressing the light toward the west. This strange scene brought a great shock to Long Xingyu, he never thought that in this strange space, such a strange change would occur, and this change was greatly beyond the scope of his understanding, and it seemed that it could not be explained by the scientific knowledge he mastered. Immediately, Long Xingyu smiled bitterly, this strange space itself was beyond the scope of his understanding, no matter how strange things happened here, what was there to make a fuss about.

With the changes in the sky, Long Xingyu only felt that the aura energy around his body was becoming more and more violent, but Long Xingyu found that the energy of heaven and earth at this time seemed to have increased slightly in the level, and if someone wanted to absorb this energy at this time, maybe the strength could be quickly improved, of course, the premise was that it could not be affected by the violent power. Don't dare to take risks, Long Xingyu didn't plan to absorb this energy to analyze it, just quietly staged all this. However, as time went on, Long Xingyu actually found that there seemed to be some energy invading into his body, this discovery made Long Xingyu feel horrified, you know, being invaded by such violent energy in the body, if you run around, I really don't know what the consequences will be. Hurriedly mobilized the qi of the dantian to assimilate and absorb the invading energy, and at the same time, the spiritual power quickly laid a layer of defense on the surface of the body, and then Long Xingyu gathered the internal force and laid another layer of protection under the spiritual power.

"Xingyu boy, hurry up and resist it, if you are invaded by that energy, the consequences will be unimaginable. At the beginning, a cultivator who had reached the middle stage of the Yuan Infant wanted to try to absorb these energies, but not long after the energy entered the body, there was a great change, and in the end, his fate was extremely miserable, and after being invaded by that crazy energy, he exploded and died. After that, there were some more powerful masters, relying on their own strong strength, who wanted to absorb the power of refining the berserk, but in the end they couldn't escape the end of the explosion. "Elder Changfeng's advice seems to have come a little late, but fortunately, Long Xingyu saw the opportunity quickly and took precautions a long time ago.

"This tidal wave of energy happens twice a day, and every time the sky is bright and dark, it is triggered. After all, if you encounter an energy storm, it is very troublesome, and those who are not strong are likely to be invaded by the violent energy, and the final outcome will be the same as those who explode and die, but generally speaking, as long as the energy is not absorbed, as long as it is quickly eliminated from the body, there will be nothing. Elder Jinghua added.

"The people who live in this space will go through two tidal waves of energy every day. In this way, those who want to retreat and cultivate will not be in danger. Long Xingyu asked.

"You can rest assured that as long as you are in the land of the clan or the city built by cultivators, you will not be affected by this energy tide. Elder Jinghua said with a smile.

"En?" When Long Xingyu heard this, he became more and more puzzled.

"Because, in this 'Mysterious Realm', for some reason, there are some places that would not have been affected by the energy tide, and most of the sect families were also established based on these places. As long as you practice in those places, you will definitely not have to worry about emergencies during retreat. Elder Changfeng explained.

"Oh, and how long will this energy tide last? Long Xingyu nodded, and then asked again.

"Depending on the season, the duration varies, but in general, it lasts ten to twenty minutes. Elder Jinghua replied.

Knowing this in general, Long Xingyu didn't ask any more questions, but just used his internal force to protect his body and wait for the energy tide to subside.

The darkness of the sky that gradually swallows up the light. Suddenly, from the western sky, a blood-colored light gradually appeared, and the light, which had been swallowed up by darkness, was suddenly covered by the blood-colored light. Long Xingyu frowned slightly, and there was a faint bad premonition in his heart.

"Xingyu boy, what's wrong with you, why are your faces so difficult. Elder Jinghua suddenly noticed the strangeness on Long Xingyu's face and asked out loud.

"That blood-colored light, what is it?" said Long Xingyu, pointing to the western sky.

Hearing this, several senior elders also seemed to feel something different, and hurriedly raised their heads in that direction, and they were all taken aback. It's no wonder that they didn't find it before, in fact, they are very familiar with the changes in the scenery in this space, so they have no interest in observing, and Elder Jinghua is also curious because of the strangeness in Long Xingyu's expression. At this time, when they looked up, their faces also turned blue.

The blood color of the sky became more and more abundant, covering the entire originally bright sky, and the entire space seemed to contain a faint fierce aura. The tide of energy that was supposed to be coming to an end became even more violent because of the appearance of this blood. Feeling the energy attached to the power of blood, it seemed to be more corrosive, corroding and swallowing up the energy that everyone was protecting, which made the hearts of the four people full of horror.

Feeling the corrosive effect of that energy on his spiritual power, Long Xingyu had no choice but to withdraw his spiritual power, run the energy in the dantian, and completely wrap his entire body into it. The three elders on the other side seemed to be struggling to support at this time, they didn't have that strange dantian energy like Long Xingyu, at this time, they could only try their best to resist the erosion of the heaven and earth energy attached to the bloody qi. When they arrived at Long Xingyu and didn't seem to be affected much, they all felt very incredible, although they had also seen Long Xingyu be able to resist the blood evil qi before, but at this time, the blood evil energy mixed with the energy of heaven and earth was not comparable to the simple blood evil qi before, and Long Xingyu was able to easily resist it, how could this not surprise the three of them. Looking at each other and smiling bitterly, they were embarrassed to ask Long Xingyu to help them resist the erosion of this energy.

Feeling the growing energy, the three elders had to get closer together and cast a formation, relying on the power of the formation, barely resisting the increasingly powerful energy. And all of this is also caused by the rapidly expanding blood-colored light.

With the passage of time, the area covered by the blood-colored light became larger and larger, and just when it spread to the top of Long Xingyu and the others, everyone found that it was actually a blood-colored ocean, and the tumbling and expanding sea of blood was just like the twisted and wriggling blood-colored earthworm, giving people huge pressure at the same time, but also making people feel very disgusting. Fortunately, the psychological quality of the people here at this time is still relatively good, and if they were ordinary people here, it is estimated that they would have been shocked by this situation and had a mental breakdown.

The sea of blood spread, but in just over ten minutes, it covered the entire sky, and the boundless sea of blood brought everyone only the boundless depression.

Just when the boundless sea of blood was formed, Long Xingyu suddenly discovered that the heaven and earth energy that originally filled the sky seemed to be suddenly emptied, and the energy tide that was still violent also disappeared in an instant, giving people a very aggrieved feeling. With a blue face and a surging sea of blood, the uneasiness in Long Xingyu's heart became stronger and stronger.

"Blood Sea Array, could it be that the Blood Demon has been resurrected? Impossible, more than two thousand years ago, the Blood Demon had obviously been wiped out by the joint efforts of the major forces, and even his Blood Demon clone had been destroyed to the ground, how could this Blood Sea Great Array still appear. Elder Agni said in surprise.

"The only possibility is that he still has a clone at the beginning, and it has long been hidden, as long as there is a clone remaining, after a long period of recovery, he will inevitably regain his original power, and the original demon extermination operation did not eliminate the blood demon as those predecessors expected, after so many years of cultivation and recovery, he plans to make a comeback. Elder Changfeng's face was pale.

"Quick, quick, although I don't know how this blood sea array appeared, but I think it is definitely related to that conspiracy, we can't waste time here. Elder Agni said anxiously.

Knowing the seriousness of the situation, Long Xingyu's heart was even more uneasy: "To be able to make such a big battle, where is this so-called blood demon, and how powerful is he." Thinking of this, Long Xingyu suddenly felt a little powerless in his heart, "If you really encounter that kind of force that you can't resist, then what will you do." I don't know the answer, Long Xingyu only knows that in the current situation, he can only do his best. Alas, it would be nice if I could have one of those hovercars now, and the speed of that would be countless faster. Thinking helplessly, Long Xingyu could only spread his body and quickly keep up with the three senior elders.