Long Yu wandered around the Shenwu World for several hours. In addition to investigating the situation in the Shenwu World, he also took the opportunity to feel the situation in the surrounding sea of death.
But unfortunately, his current precise perception within the Nine Netherworld is only limited to a range of just over 100,000 miles. Compared to the vast and boundless Sea of Death, it is a drop in the bucket. He can only sense a small area at the edge of the Sea of Death.
This made Long Yu feel a little regretful. It seemed that he would not be able to find anything useful in the Sea of Death because he did not have enough time to search the entire Sea of Death.
After making sure that nothing major had happened in the Shenwu World, Long Yu left the Shenwu World and headed towards the Death Star vortex infinitely far in the sky.
The Death Star Vortex is his last stop in the Nine Nether Realm. If he can master 80% of the Nine Nether Mark in this stop, then everything will be settled.
But if not, then it will be a big problem...
Long Yu tried to sense a trace of the aura of the Nine Nether Dragon Emperor from the jade slip of the Four Phases Killing Prison. In that way, he might be able to master the Nine Nether Seal to 50% and undergo a transformation.
But unfortunately, the jade slip that recorded the Four Phases Killing Prison did not contain any aura of the Nine Nether Dragon Emperor. There was only a desolate aura surrounding it, which was unable to provide any help to Long Yu in mastering the Nine Nether Seal.
After he left the Shenwu world, he traveled through the endless void, constantly searching for the air vortices in the void. He can now sense the air vortices within a radius of more than 100,000 miles nearby, and he can find three or four air vortices every day. This speed is not slow.
However, to expect to master 80% of the Nine Nether Seal within a month is still too far.
Fortunately, three days later, Long Yu finally absorbed the aura of the Nine Nether Dragon Emperor from a total of ten air vortexes, and finally mastered the Nine Nether Seal to 50%.
When Long Yu had mastered 50% of the Nine Nether Seal, he found that his perception of the entire Nine Nether Realm had completely transformed!
Originally, he was barely able to borrow some of the world power of the Nine Netherworld to increase his own strength and perception, but now, he has mastered half of the Nine Netherworld Seal, and it feels like the entire Nine Netherworld has become his own.
Of course, he has not yet fully mastered the Nine Nether Realm, and cannot yet regard the Nine Nether Realm as his own small world, but this has also greatly enhanced Long Yu's perception and strength.
His perception range was directly increased from 100,000 miles to 10 million miles, which was nearly a hundred times larger! And his strength was further increased in the Nine Netherworld, and he could obtain a hundred times bonus from the world power of the Nine Netherworld.
When sparring with the Hexue puppet, Long Yu was able to gain more than seventy times the power increase, and now, the increase he can get from the Nine Netherworld has reached one hundred times.
This is an extremely terrifying number, which is equivalent to directly improving his basic strength to the fourth or fifth level of martial arts realm!
If it was a little bit difficult for him to confront the Hexue puppet head-on before, now he can completely confront the Hexue puppet head-on. He doesn't need to escape from the opponent's white sword light anymore, he can withstand it head-on.
This is the transformation that took place in Long Yu after he mastered 50% of the Nine Nether Seal. Of course, all this is limited to the Nine Nether Realm.
If he left the Nine Netherworld and arrived at the Great World Beyond Heaven, Long Yu would be beaten back to his original form. Without the power boost from the Nine Netherworld, he could only contend with a two-star emperor at best.
For Long Yu now, the most useful thing about this transformation is not the improvement in strength, but the significant increase in the range of perception!
The original perception range of only over 100,000 miles has now expanded to 10 million miles, and this is still referring to precise perception.
Even some changes in power a hundred million miles away cannot escape Long Yu's perception now, but if the distance is too far, the perception will not be so clear.
Long Yu could clearly feel that there was an invisible network power emanating from the Jiuyou Mark, radiating from his body, connecting the entire space within the Jiuyou Realm, and conveying the situation near the Jiuyou Realm to Long Yu.
"If I can fully master the Nine Nether Seal, I will be able to see everything at a glance, just like I can perceive my own inner world! I can clearly see where things are at a glance... However, I am still a long way from being 100%."
What made Long Yu excited was that when he initially expanded his perception to a radius of ten million miles, he could directly feel that there were hundreds or thousands of air vortices existing around him at the same time!
These air vortices are all formed by the slowly condensed aura of the Nine Nether Dragon Emperor, an aggregate of auras that have gathered together over countless years.
For ordinary martial artists, this kind of aura aggregation will have no effect even if it exists in the secret realm of the Lord outside the sky. But for Long Yu, it can allow him to master the Nine Nether Seal at a faster speed.
Every time an air flow vortex is absorbed, it is equivalent to Long Yu spending a month to master the Nine Nether Seal, which can save Long Yu countless time.
At this point, Long Yu finally had some confidence that he could master 80% of the Nine Nether Seal within a safe time.
Before he mastered the Nine Nether Seal to 50%, Long Yu could only find three or four air vortexes every day and absorb them.
And now, the number of air vortices he can absorb every day has increased by at least ten times than before!
After all, it takes time to absorb air vortices. Now Long Yu has reached the point where he has found enough air vortices but does not have enough time to absorb them.
Even if a lot of food was placed in front of Long Yu, he could only enjoy it one portion at a time. No matter how much he had, there was only so much food he could enjoy every day.
Long Yu threw himself into the process of madly absorbing the air flow vortex, and ignored the ones that were too remote. He continued to move forward along the void route from the Shenwu World to the Death Star vortex, without slowing down too much while absorbing the air flow vortex.
Soon, the first day after Long Yu mastered 59% of the Ghost Mark passed. During this day, Long Yu absorbed a total of 52 air vortexes, and this was only one tenth of the air vortexes he discovered.
If the previous air vortexes were discovered too little, then now they have completely exceeded the range that Long Yu can absorb.
When he was unable to sense the void in such a large range, Long Yu had never thought that there were so many air vortices in this endless void. This was the biggest change after the improvement of perception and detection methods.
After absorbing the fifty-two air vortexes, Long Yu's mastery of the Nine Nether Seal directly increased from fifty percent to fifty-three percent. If he continued at this pace, it would only take ten days for Long Yu to master eighty percent of the Nine Nether Seal.
Unfortunately, the more Nine Nether Seals one wants to master, the more difficult it becomes. And Long Yu's current speed of absorbing air vortices has almost reached its limit. He can only absorb fifty air vortices at most every day. In other words, the speed at which he masters the Nine Nether Seals will decrease day by day.
On the second day, Long Yu still absorbed more than fifty air vortices, but he had only mastered the Nine Nether Seal to 55%, which was 1% less than yesterday.
Day 3, Day 4…
Ten days later, Long Yu had already walked half of the distance to the Death Star vortex. During this time, he continued to absorb the air vortexes, and absorbed the aura of the Nine Nether Dragon Emperor from a total of more than five hundred air vortices.
However, his mastery of the Nine Nether Seal was only at 65 percent.
At this time, more than half of the two months of safe time mentioned by Si Yuanbai had passed, and there were only more than ten days of safe time left!
At this time, Long Yu finally felt that the power of deduction began to descend upon him from the sky occasionally. It was obvious that the leader of the Loushan clan had discovered his existence and wanted to directly deduce his information.
Fortunately, with the protection of Concubine Yu's prohibition, the deductions of those big guys about Long Yu were completely ineffective.
However, this also shows that Long Yu's existence has been exposed. The Loushan clan will probably send people to the Jiuyou Realm to deal with Long Yu soon. Although they can't find Long Yu for the time being, they may eventually find him as time goes by.
Moreover, Long Yu also felt that the power of deduction that descended upon him became stronger and stronger with the passage of time. It was obvious that more and more powerful people were deducing Long Yu, or in other words, more and more people were deducing Long Yu.
The exposure of one's deeds may happen soon!
In this situation, Long Yu increased the speed of absorbing the air flow vortex. As long as he could master the Nine Nether Seal to 80%, he could directly take the Nine Nether Realm and escape from the jurisdiction of Loushan Clan!
"Over at the Dragon Burial Ground, the death of the Emperor's team has been discovered."
Si Yuanbai brought even worse news: "Moreover, most importantly, although they can't deduce the identity of the three of us, they can deduce our approximate identities through our shielding deduction method... I'm afraid that now the Loushan clan has mobilized all of them. After all, they should have known that it was the Jiuyou clan that wanted to take away the Jiuyou Realm."
This is very bad news indeed.
The good news is that due to Concubine Yu's prohibition blocking the deduction, it is still very difficult for the other party to deduce the positions of the three of them, at least not in a short period of time.
"I have to speed up."
Long Yu nodded solemnly and quickened his speed to rush to the Death Star vortex. He did not speed up to absorb the air vortex because his speed of absorbing the air vortex had already reached the limit.
As long as he rushes to the Death Star vortex first and relies on the Death Star vortex, Long Yu may be able to delay for a while at the critical moment. This may be the most critical period of time!