The four ancestors knew in their hearts that the huge noise just now was because Cheng Siqi had touched the formation, that is, Cheng Siqi's actions had reached the most critical moment.

After realizing this, the four ancestors did not dare to hesitate in the slightest, and hurriedly mobilized their mana to maintain the formation foundation in front of them and prevent it from collapsing.

This is a very contradictory thing, on the one hand, it is the formation supported by these four formations that traps the entire Xuantian Immortal Domain, and is the biggest obstacle for Cheng Siqi to break through, but in order to ensure the safety of the Xuantian Immortal Domain, the four guardians, the ancestors of the four major families, must try their best to stabilize this formation, which is a difficult thing, but the most difficult thing is not this matter.

And what makes the four ancestors even more worried is that the last few bigwigs want to arrange this bureau, just to trap the unkillable Mixed Yuan Zhenjun here, and let him destroy it with this piece of heaven and earth, at this time, with the help of the power of the Heavenly Dao, because heaven and earth also have longevity, but relatively speaking, it seems to be eternal, therefore, if they are a little careless, the collapse of the formation is a trivial matter, not only can they not rush out, but they will be destroyed with this piece of heaven and earth!

As a sealed battlefield, the Heavenly Ruins exist in the Xuantian Immortal Domain, and they are also associated with the Chaos Locking Heaven Great Array, and the formation blocks the connection between the Xuantian Immortal Domain and the outside world, only once in fifty years, when the formation is loosened, the desolate qi in the starry sky outside will enter the Tianxu through the cracks in the formation, and if you want to enter the Tianru to find an opportunity, you can only take advantage of the time when the formation is loosened once in fifty years, and enter it.

However, if the formation is loosened once, it will not last too long, especially the gap, only at the beginning, the gap is the largest, and then it will continue to get smaller until it disappears, and the formation is completely restored, and what Hongjun Ancestor arranged for the four of them to do is to maximize the gap through the control of the formation, and hold on for a longer time, so as to give Cheng Siqi more time and opportunities!

This is the rarest and most contradictory, fortunately, now these four guardians have reached a consensus, after a long time, they have given up their original intention and stood in the same camp as Cheng Siqi, that is, even if they know that they will face punishment, they must find ways to return to the last session!

Things are indeed as the four ancestors thought, Cheng Siqi, who went against the current, encountered the biggest trouble!

After he rode the starry sky spaceship, along the torrent winding in the dark space, after a while, suddenly, the spaceship encountered obstacles, as if blocked by a layer of terrifying skynet, although this skynet is invisible, but the spacecraft is stagnant in place, unable to move, at the same time, Cheng Siqi through his divine sense, difficult to find that above the spaceship, the torrent has been divided into several small tributaries, to be exact, a number of small rivers, here merged into a torrent, he has reached this confluence point at this time.

Without hesitation, Cheng Siqi's mind moved, and the Mixed Yuan Creation Technique immediately started to work, and immediately, countless small whirlpools formed on the surface of the spaceship, and the invisible sky net began to be quickly devoured.

And at this moment, Cheng Siqi's face showed excitement, this was the first time he had run the exercise devouring formation prohibition, although he had long known that his new exercise had this effect, but he had never tried it, at this time, he felt that the devoured formation appeared in his mind little by little, and the clear formation veins, including the formation techniques and techniques, were quickly realized by him.

This feeling made him very excited, and even subconsciously wanted to immerse himself in it, but he tried his best to control himself not to be distracted, because he knew that now was the most critical juncture, and if he couldn't rush out smoothly, he would fall short!

Moreover, he knew in his heart that these formations that had been devoured by him, although they were not complete, had become their own things, as long as he was given enough time, he would definitely be able to comprehend such an anti-heaven formation, of course, the premise was that his cultivation was high enough and his strength was strong enough to be able to arrange such an anti-heaven formation!

As Cheng Siqi began to devour the formation of the Chaos Heaven Locking Great Array, the entire Xuantian Immortal Domain began to tremble violently, even more serious than the previous one, countless mountains and rivers collapsed in an instant, countless rivers were cut off, and even, some places close to the edge of the Xuantian Immortal Domain directly collapsed!

The ancestors of the four major families, as guardians, although they couldn't leave the Supreme Heavenly City, and they couldn't leave the four formation bases at this time, but they were all clear about what happened in the Xuantian Immortal Domain, but at this time, they had no time to take care of it, because all their experiences were placed on the formation base in front of them.

As before, on the one hand, they had to try their best to control the stability of the formation, and on the other hand, they had to do their best to control the crack that was connected to the outside world to buy Cheng Siqi enough time.

And the many monks who were waiting in the four major families, waiting to enter the heavenly ruins, showed fear on their faces one by one, they were the closest to the formation base, and the feeling was even more terrifying, but fortunately, there were many masters of the four major families guarding on the side, but there was not much chaos.

It's just that this scene made the entire Xuantian Immortal Domain begin to boil, and they began to speculate and worry, but most of them regarded this accident as a real earthquake.

Fortunately, this bad situation did not last long, and after less than half an hour, it disappeared completely.

The four ancestors breathed a long sigh of relief, and their faces showed a look of happiness for the rest of their lives, and at this point, their task was completed!

After a while, the four of them gathered again on a cloud somewhere, and after a moment of deliberation, they quickly disappeared!

At this time, Cheng Siqi, who was in the starry sky spaceship, although he had successfully rushed out of the Chaos Locking Heaven Array, his face showed a look of helplessness, and at the same time, his face looked very pale.

It turned out that at the moment when he used the new technique, the Mixed Yuan Creation Technique, to break through the Chaos Locking Heaven Array, he didn't have time to feel the changes around him, and a strange force instantly enveloped the starry sky spaceship, and then, the starry sky spaceship seemed to be stuck in a quagmire, unable to move a bit, and what was even more strange was that he was in the starry sky spaceship, and he also did not dodge.

Moreover, at the moment when the mysterious power corroded, he felt an irresistible sense of fear, as if the power could not resist at all, and he felt that he was like an ant in front of that mysterious power, unable to resist!

Fortunately, he was prepared and came to his senses as soon as possible, this mysterious power was emitted by the so-called God and Demon Spell Heavenly Array, which could destroy all the monks who escaped from the Xuantian Immortal Domain, and even, he could clearly feel that no matter how powerful the cultivator was, if he fell into this God and Demon Spell Heavenly Array, he would be destroyed, completely destroyed, and there would be no chance.

Not only that, but even the starry sky spaceship that Cheng Siqi was riding on began to melt rapidly under the erosion of that mysterious power.

Without the slightest hesitation, he hurriedly urged the Mixed Yuan Decisive and began to devour frantically, he knew in his heart that if he wanted to break out of this terrifying God and Demon Curse Heavenly Array, he only had one chance, if he couldn't rush out quickly, then he would fall here forever, and there would be no second chance.

Because, the terrifying erosion power released by this god and demon curse heavenly array is tens of millions of times more powerful than the curse power that once poisoned Su Lao, and the difference between heaven and earth is incomparable!

Therefore, he can only use the Mixed Yuan Creation Technique to rush out from here, and only by rushing out can he have a chance!

Of course, these were all expected by his two masters, so at this time, he was not very nervous, but extremely calm!

Sure enough, as he devoured it, the starry spaceship, which was rapidly eroding and dissolving, began to move again, although it was not fast, but it had also begun to move upward. It's just a pity that when he arrived here, although he devoured it, the mysterious and strange power was still eroding the spaceship.

After a while, Cheng Siqi, who was calm and calm, suddenly changed his complexion, it turned out that he suddenly noticed that his cultivation began to decline slowly, and although he had only experienced this moment, the volume of the starry sky spaceship had become about half smaller!

At the critical moment, Cheng Siqi, who was helpless, could only frantically devour it, and at the same time, began to control the spaceship, turning wildly, and then, the high-grade spirit stones stored in the spaceship began to decrease rapidly! This is nothing, the key thing is that as he accelerated the speed of devouring, those mysterious powers also began to accelerate the erosion of his body, including the spaceship!

The only thing to be thankful for is that the ship finally picked up speed and rushed upwards!

(To be continued!)