Inside the Heavenly Machine Tower.

The two-month retreat was equivalent to more than sixty years for Wu Yan, who had opened the small world of cultivation at a speed of 400 times.

For such a long time, Wu Yan's progress in all aspects is still quite obvious.

First of all, the most critical thing is naturally the changes in the Great Dao Desolate Yuan Mountain and the Great Dao Desolate Realm.

The Great Dao Desolate Yuan Mountain has been completely transformed into a world mountain condensed by the laws of the Desolate Dao. Its most basic unit is a small element that cannot be seen by the naked eye.

The existence of this kind of meta-talisman is as magical as the cells that make up the human body.

The rules of heaven and earth in the Great Dao Desolate Realm have also been transformed. The original rules of heaven and earth are simply in line with the rules of heaven and earth in the Hongmeng world, and the rules of heaven and earth after the conversion can not only be completely in line with the rules of heaven and earth in the Hongmeng world, but also in line with the Five Elements Heavenly Dao world in the Great Wilderness Yuanding, and even with the breath of the Great Wilderness Shengyuan Mountain.

Between the Great Dao Desolate Realm and the Great Desolate Shengyuan Mountain, the breath of desolation is getting closer and closer, and I believe that when Wu Yan's cultivation realm breaks through to the Supreme Heavenly Venerable, he will be able to completely fuse the breath of the two powers.

At that time, Wu Yan would be able to completely start refining the Great Wilderness Saint Yuan Mountain and bring it into his own Great Dao Desolate Realm, instead of leaving it in the Five Elements Heavenly Dao World like now, and there was nothing he could do about it.

The magic of the Great Wilderness Shengyuan Mountain is beyond anyone's imagination. What Wu Yan has seen now is just some skin.

If he could completely refine and control the Great Wilderness Saint Yuan Mountain, then he would have the power to directly suppress the Holy Spirit. In this way, Wu Yan can swagger and repair the entire Hongmeng world according to his own will.

Of course, after the transformation is completed, the area of the Great Dao Desolate Realm has expanded a lot compared to the original, but Wu Yan has not yet tested how powerful it can be, so he is not very clear.

He planned to find an opportunity to test one or two after he got out of the customs.

In addition to the changes in the Great Dao Desolate Yuan Mountain and the Great Dao Desolate Realm, during Wu Yan's cultivation period, another existence that changed relatively much was naturally his three talismans.

The pseudo-desolate element ball that had been condensed in the Medicine Venerable Realm before, and the pseudo-desolate element in it had all been consumed. It is precisely because of this that Wu Yan's Great Dao Desolate Yuan Mountain and Great Dao Desolate Realm can be improved so quickly.

After all, the vast majority of the pseudo-desolate elements were absorbed and fused by these two, and a smaller part was absorbed and refined by the three runes, which became the key force to improve the quality.

To be honest, the price is a bit big.

After all, in the world of the bitter sea, it is very difficult to find the power of the wilderness. Therefore, if you want to find an opportunity to improve the Great Dao Desolate Realm and the Great Dao Desolate Yuan Mountain in the future, the difficulty is conceivable.

Fortunately, the quality of his three runes has all been successfully upgraded to the peak level, which is completely worth it compared to this kind of consumption.

It's just that the fusion of runes is obviously a lot more difficult than he imagined.

During the retreat, he tried to merge once, but unsurprisingly failed.

It seems that only when the cultivation reaches the peak level of the Great Immortal Venerable, and the Great Dao Perception reaches the realm of being able to impact the Heavenly Venerable, will there be a chance to successfully fuse.

From this point, it can also be seen that the creatures of the Great Wilderness Metaverse and the creatures of the Hongmeng World have different starting points for cultivation.

As for the Runic Desolate Sword, after decades of cultivation of the Great Desolate Yuan Fu, the law of desolate water within it has been perfected, and its power is much stronger than before.

Of course, because there are no objects available for testing, Wu Yan can't accurately judge how much he has enhanced.

However, Wu Yan believed that if he used the current Runic Desolate Sword to break through the Heavenly Dao World of Zhengyang, it would be more than just leaving a spatial crack for it.

I'm afraid it's not impossible to tear apart its Heavenly Dao World, or even directly annihilate and devour a part of the Space World within it.

After the law of desolation contained in the rune desolate sword is perfected, it only needs to extract a primordial power from Wu Yan's Yuan rune seal seed, and it can be directly transformed into a terrifying Dao technique containing the power of desolation.

This is also the first Dao technique related to the power of desolation created by Wu Yan after comprehending the law of desolation during the retreat!

He named this technique "Desolation".

The reason for this name is that once the "Desolation" technique is cast, it can devour all essences, causing them to completely disappear and then turn into nothingness.

And the essence that was devoured and annihilated was originally able to be absorbed by the master who performed this technique, but Wu Yan's current cultivation realm obviously had not reached this level, and under the use of "desolation", he could not really devour the essence power.

The previous rune bone sword, after just being successfully refined, only had the most primitive trace of the law of desolation, and after Wu Yan used the bone sword to cut through Fu Zhengyang's Heavenly Dao world, he only left an unbridgeable spatial crack in his Heavenly Dao world.

In that spatial crack, because there was still a trace of the power of the pseudo-desolate power, therefore, Fu Zhengyang's Heavenly Dao World had never been able to expel it, and that spatial crack had always existed in its Heavenly Dao World.

Don't underestimate the existence of such a spatial rift.

Its existence not only caused a loophole in Fu Zhengyang's Heavenly Dao World, but also greatly reduced its power in both defense and offense.

Especially when facing an opponent in the same realm, once both sides are in the Heavenly Dao World to confront the primordial power, the existence of this loophole can easily be detected by the opponent, and then become the key point for oneself to be breached.

And the existence of this loophole also means that there is a defect in its Heavenly Dao, so that the creatures in its Heavenly Dao World will have the opportunity to follow this defect and escape from its Heavenly Dao World.

This kind of blow is still quite big for an ordinary Tianzun.

This was just the trauma caused by the previous Rune Bone Sword. If it was replaced by the "Desolation Devouring", Wu Yan's desolate power transformed by a primordial element was only afraid that it would be enough to destroy the space of his Heavenly Dao World that was thousands of miles in size, and completely inflict a heavy blow on his Heavenly Dao World.

Of course, this is just a comparative judgment made by Wu Yan by virtue of the power of the Rune Bone Sword after casting the Rune Bone Sword before, and the power contained in the Rune Seed Desolate Sword now.

He didn't dare to use this Dao technique in the cultivation world, if one of them didn't do well and destroyed the cultivation world of the Heavenly Machine Tower, it would really be worth the loss.

However, the "desolation" is still too reluctant for the current Wu Yan.

Although he has already comprehended the law of desolation, and also knows how to use the law of desolation to transform the power of desolation, but the transformation of a desolate power, the essence that needs to be consumed, is extremely terrifying, and the process of transformation is also extremely complicated.

Once the third "Desolation" is cast, there is a risk that irreparable damage will be inflicted on the Yuan Rune Seed.

Therefore, this Dao technique, unless it is absolutely necessary, Wu Yan will not perform it.

However, compared to such a terrifying "Desolation" that consumes the essence, simply using the Runic Desolate Sword can also exert part of the power of the Law of Desolation, but without the support of the element, if only mana and holy consciousness are consumed, its power is much smaller than that of "Desolation".

Of course, even if the power is much smaller than that of "Desolation", it is only relative. Wu Yan believed that even the Heavenly Dao World of the mid-level Heavenly Venerable would definitely not be able to withstand a stroke of the Rune Seed Desolate Sword.

With this treasure, there is no need to worry about being held hostage by the Tianzun powerhouse in the future, and finally within the Three Realms, there is a real means of saving life.

As long as he doesn't encounter the Great Heavenly Venerable, or the existence of the Holy Spirit level, there should not be many existences in the Three Realms that can threaten him.

Speaking of which, the current Wu Yan does seem a little too perverted.

Only the mid-stage cultivation of the Immortal Venerable has the power that even the mid-level Heavenly Venerable is afraid of.

Another thing that made Wu Yan quite excited was related to the Desolate Ancient Heavenly Dao World and the Desolate Heavenly Dao World of the Hongmeng Nine Realms.

After comprehending the law of desolation and mastering the power of desolation, Wu Yan finally got a glimpse of the mysteries of these two heavenly worlds.

It turned out that whether it was the Desolate Heavenly Dao World or the Desolate Ancient Heavenly Dao World, there was actually a desolate power in it!

What's more, Wu Yan was also faintly aware that in the Desolate Ancient Heavenly Dao World, the flow of time was actually imprisoned by the power of the Desolate Heaven, and the power of space in the Desolate Heavenly Dao World was also imprisoned by the Desolate Force.

If you can absorb and refine this desolate power that has imprisoned the two great heavenly worlds, then you will definitely be able to lift the confinement of the two great heavenly worlds.

But Wu Yan obviously wouldn't do that.

First of all, he didn't know why such a confinement appeared in the two great heavenly realms.

Secondly, after discovering this secret, Wu Yan's interest in the Desolate Heaven Ancestral Tomb and the Desolate Ancient Demon Tomb was once again raised to a new level.

Let's not talk about the Tomb of the Desolate Heaven Ancestor for the time being, just say that he has been to the Desolate Ancient Demon Tomb.

The last time he entered it, Wu Yan didn't know that there was still such a magical and powerful force as the power of the desolate in this world, and he didn't know the mystery of the desolate ancient demon mound.

Now it seems that whether it is the origin of the ancient desolation or the origin of the desolate sky, it is obviously related to the power of the desolate.

Perhaps, there is also a large amount of desolate power in the Desolate Ancient Demon Tomb, and its function is to seal the entire Desolate Ancient Demon Tomb. Although the Ancient Demon Tomb has now been completely occupied by the Dark Demon Clan, if there is really a large amount of Desolate Power in it, it is still necessary to explore it again.

However, before that, it is natural to enter the Wasteland Ancestor Tomb to verify whether this guess is accurate.

Because the Great Dao Law he is comprehending now is the Law of the Great Dao of Desolation, and the original mana of his cultivation is also very close to the Desolate Yuan, so if he wants to improve his realm, it is very unlikely that he can simply absorb the Origin Qi of the Bitter Sea World.

Only by absorbing the power of refining and refining the wilderness, can his cultivation realm be improved faster and more securely.

Thankfully, before refining the talisman, Wu Yan had split into nine doppelgangers, and entered the Nine Realms of Hongmeng respectively to comprehend and cultivate.

Now, with the improvement of his original cultivation realm, the realm of these nine clones has all reached the peak cultivation of the middle stage of the Immortal Venerable, and the perception and control of the Hongmeng Nine Realms have also reached the level of the Zun Realm.

As long as this situation continues to be maintained, I believe that when his cultivation breaks through the realm of the Supreme Heavenly Venerable, he will be able to directly control the Hongmeng Nine Realms, and then unlock the real reason why the Hongmeng Nine Realms are sealed in the Great Wilderness Yuanding.

Seeing that if he continued to retreat, there would not be much improvement, and the trip to the Tomb of the Desolate Heaven Ancestor was about to begin, so Wu Yan immediately ended the retreat and walked out of the small world of cultivation.

"Elder Wu, you're finally out!"

Seeing Wu Yan, the owner of Tower No. 36 said in surprise.

"The tower master is in such a hurry, what is happening in the Heavenly Machine Tower?" Wu Yan said strangely.

"Naturally, there are no other things, this matter is related to the Tomb of the Desolate Heaven Ancestor. The big eruption of the Wasteland Ancestral Tomb will start in more than ten days, if you can't enter the Wasteland Ancestral Tomb before the big eruption, I'm afraid that there will be no chance to enter, so I'm more anxious. The Heavenly Machine Tower Master hurriedly explained.

"Oh, and all that, what's going on?"

"It is rumored that some kind of ancient ban in the Tomb of the Desolate Heaven Ancestor seems to have been touched by someone, causing the Desolate Heaven Ancestor Tomb to erupt in an unprecedented eruption. After the eruption, it is very likely that the Tomb of the Desolate Heaven Ancestor will collapse or disappear directly from the True Realm, and no one knows what the specific reason is. ”

"Therefore, not only are there many people who want to enter the Desolate Heaven Ancestral Tomb for the final adventure, but they have basically reached the exit of the Desolate Heaven Ancestral Tomb, just waiting for the most suitable time to enter it. ”

The Lord of the Heavenly Machine Tower told Wu Yan in detail what he knew.

He was naturally very concerned about this matter. You must know that Wu Yan is related to whether the Holy City of the Divine Machine can return safely to such a major event, so naturally he must not be careless.

"Oh, the right time to enter, isn't it possible to get in at any time?"

Wu Yan had heard Fu Qingyang introduce the situation of the Desolate Heaven Ancestral Tomb before, which was quite different from what the Heavenly Machine Tower Master said, which made him curious, and he couldn't help but want to know what was going on.

"Now, of course, you can't enter the Wasteland Ancestor Tomb casually and freely. The prohibition of the Desolate Heaven Ancestral Tomb was touched, and that terrifying ancient power would appear at the exit of the Desolate Heaven Ancestral Tomb from time to time. I heard that the ancient power is extremely evil, even if it is a Tianzun level immortal, if it is swept away, it may fall. Those who tried to enter it for exploration naturally did not dare to rush in. ”

"Fortunately, because of the ban, that terrifying ancient power still has a lot of rules to follow when it erupts, as long as you can avoid the peak of its outbreak and enter the Desolate Heaven Ancestor Tomb, it will be relatively much easier. That's what those people were waiting for. ”

As soon as he heard the Heavenly Machine Tower Master say this, Wu Yan couldn't help but have a mysterious smile on his face.

If what he expected was correct, this ancient power should be the power of the wilderness!

Among these three realms, only the power of the wilderness can leave such a terrible wound on people, even if the opponent is a Tianzun powerhouse.

"In that case, then I'll leave tomorrow and go to the planet outside the Desolate Heaven Ancestral Tomb, and observe it for a few days before making plans. After thinking about it, Wu Yan touched his chin and said indifferently.