The reason why he had to be so careful was actually very simple. Although this Demon Ox Island looked ordinary, there were a large number of restrictive formations arranged on the island. Not only that, the entire Demon Ox Island was enveloped by a large formation. The dense demonic qi that enveloped the entire Demon Ox Island was constantly surging with energy.
Luo Xiu was able to perceive the entire Demon Ox Island. Now that all the defensive formations had been activated, some auxiliary formations that could convert energy were also activated at the same time. Under such circumstances, there was no need to think too much about the specific situation of this Demon Ox Island.
Relying on the special power of the system, he carefully broke open a hole in the light barrier of the formation. After entering it in a flash, he was just about to continue moving forward when his body suddenly shook. Following that, an abundant and terrifying pressure directly pressed down on him. Even with the strength of his body, he almost knelt down on the ground. After calming down his emotions, Luo Xiu took a deep breath and operated the Eighteen Arhat Body Refining Technique with all his strength. At the same time, Luo Xiu couldn't help but deeply frown. The terrifying pressure of this place, as well as the terrifying pressure of the restrictive formations, was much more terrifying than he had imagined.
No wonder the entire Demon Ox Island was so quiet apart from some demons and devils that were active on the periphery. It turned out that everything was because of the formation. Luo Xiu felt that there was something wrong with the gravity of this Demon Ox Island. So much so that the enormous pressure of the demonic aura on the island was a terrifying existence that many living creatures simply couldn't bear.
Cautiously avoiding the nodes of the array formation one after another, Luo Xiu slowly stood up and carefully walked forward in the array formation. Along the way, following the guidance of the system, he quickly arrived at the back of a huge mountain peak. This place had been cleaned up by someone. The cliff was so steep that it was basically impossible to stand on it. If an ordinary person wanted to fly up, it would be a little wishful thinking in front of the enormous gravity of the Ox Demon Island. Moreover, the array formation here was obviously compatible with the strange gravity of this place. The interaction between them formed a special energy field. For a moment, Luo Xiu felt a little helpless.
It couldn't be helped. For the time being, he wouldn't comment on the strange energy field in front of him. However, just the height of this mountain was enough to make Luo Xiu a little speechless. It couldn't be helped. If he possessed such high strength and status, he definitely wouldn't choose this place as his cave dwelling.
In order to preserve his battle prowess, Luo Xiu attempted to advance by relying only on the strength of his physical body. But he could clearly perceive an even greater pressure, which grew stronger as he went deeper. Luo Xiu couldn't help but sigh as he looked at the dojo of Old Ancestor Ox Demon. This guy really deserved to be called one of the only two strength-type powerhouses in the entire Demon Domain.
Not to mention other things, just this terrifying force field alone was enough to make ordinary people not dare to stay here for a long time. This terrifying force field wasn't only composed of gravity. It was also composed of dozens of strange forces fused together with gravity. Gravity was only the main force, but when other forces were mixed together, the effect of tempering one's physical body could be said to be astonishing.
This discovery also made Luo Xiu deeply realize that his previous speculation was absolutely correct. At the very least, for the current Luo Xiu, the strange force field that was mixed together with the power in front of him was able to help his body's hardness.
Even with his terrifying physical body tempered by the Eighteen Arhat Body Tempering Formula, he was still greatly suppressed here. This was enough to prove the preciousness of these formations and restrictions on Demon Ox Island at this very moment.
At this very moment, Luo Xiu looked at the barren island in front of him and the powerful auras all over the island. The corner of Luo Xiu's mouth couldn't help but twitch. After coming to this world, this was the first time he saw such a heavily-guarded place. He absolutely didn't believe that there weren't any good things hidden here. The powerful formations here were actually several times more powerful than the ones he encountered on Poison Dragon Island.
Carefully avoiding one formation trap after another, Luo Xiu finally followed the system's instructions and climbed to the top of the mountain. This mountain peak was obviously flattened by weapons. This was an extremely huge square. There were many jade carvings on the square, many of which were carved with dragons and phoenixes. Moreover, there wasn't even a bit of gloomy and evil aura. If it weren't for the hundreds of corpses of experts from various races hanging on the stone pillars, he would really think that this was a square used for leisure.
However, this strange scene in front of him was very long-winded and familiar. Because his first reaction to this situation was that this seemed to be the Nine Heavens and Ten Earths Energy Locking Formation. A similar terrifying formation appeared in his mind immediately. The impact it brought to Luo Xiu was so great that it was almost indescribable with words.
But this wasn't the most important thing. What really frightened him was that the aura of the corpses of various races hanging on the stone pillars in this huge and incomparably strange square hadn't changed in the slightest even after countless years. This made Luo Xiu somewhat curious and at the same time, really vigilant.
Although he also knew that the Energy Locking Formation was extremely terrifying and could practically imprison a person's entire body, including their soul, it was the first time he saw a situation like this where the souls of several dozen experts were bound in the same place. His heart only felt waves of disgust.
He really didn't expect that a strength-type expert like the Ox Demon Ancestor would be in such a good mood to collect the corpses of experts from various races, including their souls. But the scene in front of him was absolutely not fake. Under such circumstances, Luo Xiu almost cried out. He actually felt like a lamb entering the mouth of a tiger at this moment.
This was because Luo Xiu knew better than anyone that as time passed, the power of the Energy Locking Formation would certainly increase. Of course, if the problem of consumption wasn't taken into consideration, the corpses of those experts were completely capable of supporting such a powerful formation. Therefore, the environment here didn't affect him as much as he imagined. This was just Luo Xiu's own unwillingness in his heart.
Walking on this huge gloomy square, Luo Xiu's complexion was somewhat unsightly. The enormous pressure of this place was really a little astonishing. However, at this moment, Luo Xiu entered the square with incomparable caution. For him, ten thousand meters below the square was the place where the system's components were stored. But Luo Xiu was one hundred percent sure that there was no way to find the missing item here. The only way to find it was to dig three feet underground.
Of course, the so-called digging three feet underground didn't really mean that he had to dig here, but rather that he had to use other methods to see if he could enter the real dwelling of Old Ancestor Ox Demon. Trying his best to maintain his state of invisibility, Luo Xiu cautiously touched all the statues in the square once. He somewhat helplessly discovered that he had underestimated the situation. This square enveloped by a great formation was filled with killing intent. If it weren't for his mastery of the law of time, which allowed him to cleverly evade time and time again with his superb speed, Luo Xiu's soul would've scattered long ago.
Taking a deep breath, Luo Xiu forced himself to calm down. After confirming that there were no problems, he suddenly raised his head and gazed at the huge stone sphere floating in the air. At this very moment, Luo Xiu couldn't help but stare blankly at this huge stone sphere. There was nothing he could do about it. He had just discovered this thing. Previously, when he was outside the formation, he didn't see any divine tool like this thing. But at this very moment, he suddenly realized that the source of the strange force field in this square was very likely this thing. If he hadn't confirmed it repeatedly, he wouldn't have believed that the terrifying gravity of this place actually came from this huge stone sphere above his head.
Sure enough, when Luo Xiu quickened his pace and arrived at the bottom of this huge stone sphere, the terrifying gravity became even more powerful. Even with his current physical strength, in the face of this terrifying gravity, his bones issued creaking sounds. After confirming the core of the formation, Luo Xiu was also very excited at this moment.
Therefore, he no longer hesitated and instantly released his aura. Endless devil aura converged towards Luo Xiu. With a flash of light in his hand, he once again summoned the Zhu Xian Sword. Then, the energy in his hand surged, and endless power was poured into the Zhu Xian Sword. Next, Luo Xiu made a gesture with both hands. The Zhu Xian Sword turned into a streamer of light and shot straight into the sky. The terrifying Sword Qi was like a saw, directly splitting the huge stone sphere into two. The incision was very smooth and full of Sword Qi.
At the same time, the moment the huge stone sphere was split into two, an extremely violent and terrifying force suddenly soared up from the bottom of Luo Xiu's feet. The violent energy instantly tore the whole square to pieces. Although the statues on the square were emitting a faint light of the formation, they soon disappeared under the impact of this terrifying energy shock wave.
The whole square disappeared in a flash, collapsing into a huge dried up lake. When Luo Xiu hovered there and looked down from the sky, he found that the place he was in now looked like a huge bowl.
At this very moment, Luo Xiu didn't expect that a casual strike of his could have such destructive power. Of course, this was very likely inseparable from the terrifying energy contained in the huge stone sphere. Perhaps even Ox Demon Ancestor didn't expect that someone could so easily tear apart the core of his formation. Even Luo Xiu was astonished by the sharpness of the Zhu Xian Sword. Subsequently, he looked at the underground city that suddenly appeared before his eyes with a stupefied expression.
Even with the guarantee of the system, he had already expected it. However, when he really saw the huge underground palace complex, Luo Xiu was still incomparably shocked. At this moment, his face was filled with shock because from this huge city, endless demonic energy rushed towards him.
It couldn't be helped. Luo Xiu really couldn't believe it. With Ox Demon Ancestor's level of appreciation, how could he have made such an exquisite arrangement? Although the huge square had collapsed, the underground palace wasn't affected in the slightest. It was like a hollowed out cavern with an open mouth telling something.
Just as his imagination was running wild, his face suddenly changed. Because his soul force sensed that because of the huge disturbance here, many auras were rushing towards him at high speed. Luo Xiu didn't hesitate any longer. He hastily tore apart the formation barrier in front of him and drilled inside. Under the guidance of the system, Luo Xiu directly rushed towards the location of the damaged part. Although there were some formations in the underground city, they were all in a closed state. Luo Xiu easily entered a huge palace. Inside this palace, there were more than ten Troglodyte Demons.
At this moment, these demons were studying a huge dark and swarthy coffin-like object. This was what Luo Xiu saw. As Luo Xiu approached, the system in his mind beeped three times in succession before falling into silence. Then, Luo Xiu saw the black coffin in front of him suddenly flourish with brilliance. Next, Luo Xiu instantly made his move. Boundless strength directly tore apart the ten Troglodyte Demons in front of him.
After doing all this, he calmly waited for the system to speed up the process. He didn't intend to take this thing away, but before he could urge the system, the system's voice suddenly sounded in his ears. "Host, if possible, take this thing away as soon as possible. In a short period of time, the system is simply unable to copy all the information here. In order to avoid possible problems, you'd better take this thing away as well. Since you've already made up your mind to do so, there's no harm in making a big commotion!
For the sake of future benefits, it's not worth worrying about these things at this time!
I have a hunch that after the system digests all the records in this sealed cultivation cabin, it's very likely that the host's cultivation will no longer be a problem! "
Hearing this, Luo Xiu didn't hesitate to reach out and directly grabbed the huge black coffin. However, the moment he was about to put the black coffin into the small world inside his body, his heart skipped a beat. A terrifying sense of crisis descended upon his heart, causing him to give up on this idea and disappear in an instant!
At the same time, a black deathly beam of light rapidly condensed like a swimming dragon. Then, a huge black dragon covered in endless demonic aura appeared in front of Luo Xiu. With the appearance of this huge black dragon, the black dragon opened its mouth and spat out a black flame. The flame's speed and temperature were terrifying, causing the surrounding space to tremble slightly. Its target was Luo Xiu's position. Seeing this situation, Luo Xiu's face couldn't help but become incomparably gloomy.
From the aura emitted by the black flame and the flying dragon, Luo Xiu deeply realized that this was actually a black dragon that had almost reached the level of a half-step Supreme-Being. Although this black dragon's entire body was composed of demonic aura, its terrifying aura and intense spiritual pressure made it difficult for Luo Xiu to move even a single step.
Even if the law of time could delay the terrifying pressure coming from all directions, Luo Xiu himself discovered that it was basically meaningless, because he could only move around in a very small area. This made Luo Xiu's face become very unsightly, because he was very sure that if he couldn't get out of here in time, what awaited him would be the encirclement of endless demons.