In this central hall, it seemed that only the rich aura of heaven and earth could have some effect on Tang Hao, since there was no way to refine the talisman in this place, Tang Hao simply began to sit down and practice silently running the Qingyang Jue.

His spatial artistic conception has always been at the level of entering the third layer realm, so he has always been a mere 1-star Martial Emperor, and now there is nothing else to do, just to improve the spatial artistic conception.

In fact, after his time and space momentum reached the peak of the 9th stage, his comprehension of time and space has been greatly improved, although it cannot be said to be as simple as eating and drinking, but compared to before, it is absolute, and the enhancement of comprehension is not a little bit, it is an exponential or even several times enhancement.

The foundation he had laid out in the 1-star Martial Emperor was already extremely strong, at least dozens or even hundreds of times stronger than other 1-star Martial Emperors, so even if his spatial artistic conception was also at the third-level 1-star level, it was so powerful that it was boundless.

But because of this, he wants to break through the 2-star Martial Emperor, it is not so simple, it is not as simple as other 1-star Martial Emperors to comprehend the spatial artistic conception can break through, he needs to enhance that part of the spatial artistic conception to the same level as the 1-star Martial Emperor Spatial Artistic Conception, he can break through to the 2-star Martial Emperor, otherwise that kind of breakthrough is equivalent to no breakthrough, it has no effect at all, except for making other strong people seem to have reached the 2-star Martial Emperor, there is no use for birds.

Tang Hao naturally doesn't want such a simple breakthrough, and even if he wants to make such a breakthrough, he may not be able to break through at all, of course, he has to reach the strongest spatial artistic conception at every level and every grade, so he is willing to break through 1 star!

So when Tang Hao comprehended the spatial artistic conception of the 2-star grade and needed a massive amount of spatial artistic conception energy to replenish, he thought of the Empty Emperor Dan.

This kind of elixir is an emperor-level high-grade elixir, it is simply an excellent elixir to replenish the energy of the spatial artistic conception, a low-grade Empty Emperor Pill is enough for ordinary low-level Martial Emperor powerhouses to forcibly replenish the spatial artistic conception of 1 grade, so as to have the ability to break through to the next star Martial Emperor.

But it was obvious that Tang Hao was not so easy, he stopped the act of comprehending the artistic conception of space, but took out the Medicine God Ding from the cave mansion, and took out a large amount of Empty Emperor Grass, this herb is the main medicine of the Empty Emperor Pill, at that time, Tang Hao scavenged from those starry sky thieves I don't know how much, but there was never time to refine this pill.

Because he had always thought that most of his previous upgrades of the Martial Emperor were forcibly improved by pills, so when he reached the Martial Emperor stage, he actually wanted to rely on his own ability to slowly break through. But this time of cultivation made him find that his Martial Emperor breakthrough was very special, in addition to the need to comprehend and consolidate the spatial artistic conception, he also needed to supplement a large amount of spatial artistic conception energy.

Naturally, the Empty Emperor Pill is extremely useful.

And before, he had comprehended and consolidated the spatial artistic conception, and he had spent 10 years in the central hall of this Tianyan Palace, that is to say, one-tenth of the task of guarding the palace had passed, but the process of his desire to break through the 2-star Martial Emperor was still far away, because there was no spatial artistic conception energy.

There are thousands of Empty Emperor Grass on his body, which is as much as a cow's hair. Moreover, he was now refining emperor-grade pills at a very fast speed, reaching the level where he could refine one furnace in an hour.

But Tang Hao still felt dissatisfied, he also wanted to improve his alchemy ability again, he felt that his alchemy speed was still too slow, he was already a soul-level low-level alchemist, but it would take an hour to refine the emperor-level pill that was two levels lower? It's unbearable.

Tang Hao then began to think about how to improve the speed of refining the pill, in this way, he needed to understand the details of each link in the alchemy, where there was still room for improvement again, and where it was not perfect enough.

Tang Hao was once again deeply immersed in the alchemy process.

He didn't expect that his alchemy ability that had improved rapidly in the past was actually very flawed, but the level of alchemy had been improving by leaps and bounds before, so he naturally couldn't see this subtle difference, but now, if he wanted to break through to reach the soul level high-level alchemist, he naturally began to comprehend the refining link of the low-level alchemy!

His alchemy strength has improved by leaps and bounds again, originally, when he refines the pill above the emperor level, he can only refine the top-grade pill at most, that is, the lowest-level emperor-grade pill essence soul pill, he can refine the top-grade pill, but when he reaches the emperor-level high-grade pill, he can only refine the medium-grade pill, although it is the top pill among the medium-grade pills, he can almost reach the top-grade level, but it is still the middle grade!

And when it comes to the Martial God level elixir, Tang Hao can only refine the mid-grade elixir, but it may belong to the top grade of the mid-grade.

and then to the soul-level low-grade elixir, although Tang Hao was able to refine the middle-grade soul pill, he was already at the lowest level of the middle-grade, that is, he could barely reach the middle-grade!

And with this opportunity to reminisce about the old alchemy, Tang Hao's level of refining these pills skyrocketed. After 5 years, the emperor-level high-grade pill was also able to refine the top-grade pill, and after another 5 years, the emperor-level high-grade pill finally allowed him to refine the top-grade pill.

So he began to improve the level of alchemy at the level of the martial god, and it also took 5 years to reach the level of the best elixir, and after another 5 years, the soul-level low-level pill could also refine the high-grade pill, so far, Tang Hao felt that he wanted to raise the soul-level pill to the level of refining the best, and it took too long, so he stopped alchemy.

And as Tang Hao spent so much time pondering how to improve his alchemy level, his speed of refining pills also increased rapidly.

At first, it took 1 hour to refine the emperor-level high-grade elixir, but then it reached half an hour to refine it, and then a quarter of an hour, until the last incense stick, the increase in speed made Tang Hao's heart bloom!

With such a level, he naturally began to refine that massive amount of Empty Emperor Pill.

More than 5,000 Empty Emperor Grass were all refined by Tang Hao into the best Empty Emperor Pill, and it only took less than 200 hours, that is, less than 20 days, to be successfully refined by Tang Hao.

Originally, Tang Hao refined a furnace of Empty Emperor Pill Pill with a stick of incense, and it took more than 300 hours to refine more than 5,000 plants, but when he was halfway through the refining, his speed increased again, and he could refine it with a little bit of incense, so in the end, it only took 20 days to refine such a massive amount of pills.

And because Tang Hao's alchemy strength has been improved again, the energy of each furnace of herbs has been perfectly absorbed, turning into 12 top-grade Empty Emperor Pills, instead of the previous 9! Looking at the Empty Emperor Pill with more than 60,000 pieces in front of him, Tang Hao couldn't close his mouth with a smile.

His heart moved again, these top-grade Empty Emperor Pills, and he didn't know if they could be forcibly upgraded by their own Radical Pill runes to another level of medicinal efficacy?

As soon as he thought of it, he took out a Radical Pill rune and slapped it on top of a top-grade Empty Emperor Pill!

A magical scene happened, the Jidan rune was really effective, and a layer of lilac lotus pattern appeared on the top grade Void Emperor Pill, and a faint halo was attached to it, and that halo was obviously about twice as strong as the arc of the best pill of the ordinary Superb Void Emperor Pill.

Tang Hao didn't expect that he was crooked, and this top-grade elixir was actually divided into several grades!

In other words, the best elixir, what it refines by itself may only be the first grade of the best elixir, but through the strengthening of the Jindan rune, I am afraid it has reached the second grade of the best elixir!

So is there a grade 3 grade of the best level of elixir?

Since he had this kind of thought, Tang Hao naturally did not hesitate, and once again took out the Exciting Pill rune and slapped it on the surface of this superb Empty Emperor Pill.

The fact that it happened again made Tang Hao ecstatic, it turned out that his guess was completely correct, and there was indeed a level 3 grade in the best elixir. Looking at the 2-layer lotus pattern faintly emerging on the surface of this top-grade Empty Emperor Pill, Dan Yun was almost 4 times stronger than other top-grade Void Emperor Pills, Tang Hao smiled happily.

He didn't test whether this pill could withstand the energy of a Radical Pill rune again, maybe it could or couldn't, but Tang Hao didn't need to test it anymore, because with this level of pill, it was enough for Tang Hao to replenish the energy of the spatial artistic conception, so why should he take the risk again? He also has a large number of top-grade Empty Emperor Pills, as long as each pill uses 2 Exciting Pill runes to stimulate the strongest medicinal effect, he is equivalent to having 240,000 top-grade Void Emperor Pills, how can he do that kind of gambling again?

So Tang Hao first spent 20,000 Radical Pill Runes to stimulate the full 10,000 Superb Empty Emperor Pills to the level 3 level of the Ultimate Pills before stopping.

Finally, you can start to swallow the best Empty Emperor Pill to replenish your spatial artistic conception energy!

He opened his mouth and swallowed a top-grade Empty Emperor Pill, the medicinal effect was extremely powerful, Tang Hao actually felt like he was drunk, and he hurriedly ran the Qingyang Jue to frantically absorb the medicinal power in this unprecedentedly powerful Superb Void Emperor Pill.

With this superb Empty Emperor Pill, it took Tang Hao a full day and a night to absorb all the energy in it and transform it into his third-layer space artistic conception!

But then Tang Hao was stunned.

A low-grade Empty Emperor Pill was enough to make an ordinary 1-star Martial Emperor advance, but a Top-grade Pill-grade Empty Emperor Pill of the 3rd grade was not enough to fill the spatial artistic conception of Tang Hao's third-level second-star!

actually just filled about one thousandth of Tang Hao's spatial artistic conception.

It is conceivable that Tang Hao's third-layer spatial artistic conception is thousands of times stronger than that of ordinary Martial Emperors, otherwise Tang Hao would not be so strong that a 1-star Martial Emperor is enough to surpass the 9 Heavens of the Soul Realm!

This is because Tang Hao's accumulation is so terrifying, terrifying to the point of frightening people to death.

Three years later, Tang Hao swallowed a thousand top-grade Void Emperor Pills, and finally filled up the third layer of 2-star spatial artistic conception energy.

Tang Hao then began to frantically impact his realm barrier!

However, what made Tang Hao dumbfounded was that he was completely unable to shake the realm barrier of this 2-star Martial Emperor level, and the Martial Emperor barrier was so powerful that it couldn't shake it at all!

Tang Hao smiled bitterly in his heart, it was too powerful to be consolidated among the 1-star Martial Emperor, the 1-star Martial Emperor had the combat power of 3,500 soul powers, what a powerful and invincible foundation was this? There may never be such a powerful 1-star Martial Emperor in the entire universe again, but Tang Hao has reached such a level!

Because of this, it was difficult for him to break through and reach a 2-star Martial Emperor!

What to do?

Maybe his sect's different space is still too fragile, Tang Hao thought.

Although at this time, his sect space was actually so powerful that it was boundless, but in addition to being stronger than his own martial soul sword, it seemed to belong to the least powerful link.

His physical strength is already so strong that it is boundless, his spiritual power is also so strong that it is boundless, and his spatial artistic conception is also so strong that it is boundless, but his sect is only so powerful that it is far beyond others, compared to himself, it is the second worst link in all these links, except for the grade strength of the martial soul sword!

He waved his hand again, and a hundred bottles of ten-billion-year earth-centered fire essence appeared, and he needed to devour a massive amount of ten-billion-year-old earth-centered fire essence to raise the sect's different space again, and by the way, he would also raise his heavenly fire to another level.

So the long cultivation began again, this time Tang Hao spent nearly 45 years, and finally raised the Heavenly Fire to a level again, and at the same time, the different space of the sect was at least ten times stronger than before, and it was already more than a thousand times the strength of the different space of other ordinary martial emperor powerhouses.

But Tang Hao still felt that there seemed to be some shortcomings, so he let the powerful Tianhuo spend a few more years, swallowing a hundred bottles of ten-billion-year-old earth-centered fire essence, with these hundred bottles of ten-billion-year-old earth-centered fire essence, Tianhuo once again frantically gave birth to a large amount of heavenly fire liquid, these heavenly fire liquids were already more than ten times stronger than the original kind of heavenly fire liquid, almost dozens of times!

The original Heavenly Fire Liquid may have only reached the level of a lower grade, but today's Heavenly Fire Liquid must be the same as the level 3 grade of the Inferior Empty Emperor Pill and the Ultimate Empty Emperor Pill, the difference between the two is almost so much, it is natural that Tang Hao's Sect Mansion has absorbed so much of the Heavenly Fire Liquid in different spaces, and it is about twice as strong again!

At this point, Tang Hao felt that his foundation had reached the maximum, and he should be able to break through the powerful Martial Emperor barrier!

But even so, when Tang Hao really broke through, it was still extremely difficult, it took ten years to break through, and it took tens of thousands of times to barely wear out more than half of the Martial Emperor barrier, and finally Tang Hao spent nearly 8 years again, that is, it took nearly 20 years in total, and it was difficult to break through to the level of a 2-star Martial Emperor!

This is the most difficult breakthrough in the world, and many times it is relatively easy for a martial artist to break through the realm, and when he has a breakthrough opportunity, he can generally break through within a few months or even a month, unless there is no such breakthrough opportunity. But since Tang Hao felt that he had this kind of opportunity to make a breakthrough, it actually took nearly 20 years to break through, and I am afraid that no one believes it!

Tang Hao breathed a sigh of relief, so it took another 3 years to finally consolidate the cultivation of the 2-star Martial Emperor and reach the peak of the early stage of the 2-star Martial Emperor!

Feeling his boundless strength, he smiled!