"The door of the Black Tower? Will it open?" Wu Yuan's mind was buzzing, but on the surface, he remained calm.

In fact, there was a storm in his heart.

This has never happened before.

You must know that Wu Yuan was able to rise so rapidly all the way because of his own efforts, as well as the guidance and support from the master of Ding Wu Realm, Fang Xia, Master Nan Yin, etc.

But it has an inseparable relationship with the Black Tower.

Without the Black Tower, it would not be difficult for Wu Yuan to become a Qi Master or even a Physical Refiner. After spending hundreds of years cultivating to the Golden Core Realm, he has great hopes.

But at least, the insect demon catastrophe cannot be overcome.

With the help of the Black Tower and Wu Yuan's own hard work, he soared into the sky and quickly rose from among hundreds of millions of creatures.

The Qi Refining Lord alone is recognized as a peerless genius who emerges from the vast and endless Bai Cang Immortal Kingdom every ten thousand years.

only.

"In the past few decades, I have tried various methods against the Black Tower, but I have been unable to figure out the secret of the Black Tower." Many thoughts flashed through Wu Yuan's mind.

There is also a black tower in the Upper Dantian Palace of the Qi Refining Lord.

After the spirit of the Qi Refining Lord entered the level of ‘spiritual consciousness’, he also tried to shake it, but found nothing.

It is extremely difficult to even get close to the origin of the soul.

The body-refining deity also tried to activate the blood mist to activate the huge black stone pillar at the top of the black tower, constantly integrating into it.

It can only cause the stone pillar to release bloody light.

The bloody light has extremely strong spiritual defense capabilities and has the function of protecting the Lord.

Back then, when facing the insect demon's deadly counterattack, Wu Yuan was able to survive only by relying on the spiritual defense of the Black Tower Stone Pillar.

In addition, Wu Yuan made many attempts, but all failed.

"As for reaching the extreme of blood mist?" Wu Yuan sensed the blood mist around the black tower, which was so rich that it was almost black, like a tide like the sea.

During the battle with the insect demon, he killed a large number of demonic soldiers and reached the limit of blood mist storage at that time. Even the black tower could no longer release the blood mist.

But that time, there were no unusual changes.

Not to mention leaving the door at the bottom of the black tower open.

"Is it possible that I was too weak in the past, but then my life level changed and the upper limit of the blood mist that the black tower can store increased?" Wu Yuan flashed this thought: "Only when the black tower's hidden power is triggered can the black tower reach an unprecedented limit.

ability?"

However, after the catastrophe of the insect demon, as his strength broke through, there were no external conditions for Wu Yuan to go on a killing spree to obtain the 'Blood Mist'.

After all, ever since Wu Yuan's two great deities entered the Golden Core Realm and the Spiritual Body Realm respectively.

If you go to the Killing Qi Sea Realm and Tongxuan Realm, the Black Tower will not produce blood mist at all.

According to the rules presented by the black tower, a strong person with close strength must be killed before the black tower will release the blood mist.

The external environment did not allow it, and coupled with the inherent knowledge he had had, Wu Yuan subconsciously concluded that there would be no additional benefits to reaching the extreme level of blood mist.

Therefore, Wu Yuan never tried it.

Until this bloody battle.

When the environment allowed, Wu Yuan truly embarked on a crazy killing journey, killing more than 10,000 immortal cultivators, including many extremely powerful geniuses. The blood mist emerging from the Black Tower continued to surge.

It is more than ten times more than the previous total.

What shocked Wu Yuan was that the total amount of blood mist released by the black tower seemed to have no limit, and it kept pouring out and increasing.

However, after killing thousands of immortal cultivators, there was still no change in the blood mist. Wu Yuan did not pay much attention to it, just thinking that the storage limit had been increased.

To this day, the total amount of blood mist seems to have reached a certain limit.

The door to the Black Tower is open!

At this moment, countless thoughts flashed through Wu Yuan's mind, and many conjectures occurred involuntarily. In fact, only a second had passed.

In his Upper Dantian Palace.

"Rumble~" The door opened at the bottom of the black tower is like a huge vortex, more like an awakened glutton.

The boundless and extremely rich blood mist surrounding the Black Tower poured into the interior of the Black Tower along the gate at an astonishing speed.

"This! This!" Wu Yuan's soul looked in shock and kept observing.

All this changes.

None of them affected Wu Yuan's spiritual origin.

"The blood mist originally came from the Black Tower, why? Now it is necessary to absorb the countless blood mist back?" Wu Yuan thought secretly.

He doesn't understand.

However, the blood mist poured out from the windows of the upper tower of the Black Tower.

Now it is swallowed up by the entrance at the bottom of the tower.

"It seems that the black tower swallowing the blood mist will continue for a while and will it swallow all the light?" Wu Yuan glanced at all directions of the passage.

There was silence.

"Let's go and find a secluded place first. Wait for the black tower to finish swallowing the blood mist and see what changes happen." Wu Yuan made a decision: "We should also take a good rest."

Whoosh!

Wu Yuan was extremely fast, traveling thousands of miles in just a few breaths.

Immediately afterwards, he suddenly jumped into an inconspicuous cave passage.

Afterwards, Wu Yuan followed the passages extending in all directions and drilled wildly until he had traveled more than ten thousand miles.

He just stopped.

"This is it. If I wander around randomly like this, even if someone follows me, no one should be able to track me." Wu Yuan glanced at me: "This place is about four hundred miles away from the ground passage."

"Unless you are someone with a very powerful soul like 'Gao Yun', it will be difficult to detect me."

Gao Yun, that is recognized as the strongest golden elixir among the 580 billion participants in the war.

How many immortal cultivators can match the spirit of Gao Yun?

Moreover, Wu Yuan's soul is extremely powerful. As long as he is not a peerless evildoer at the level of 'spiritual consciousness', otherwise, he will be able to sense any spiritual probe.

"call!"

Wu Yuan sat down cross-legged, waved his hand again, and casually laid out an aura-blocking formation in a radius of dozens of miles.

This formation technique is a trophy harvested. It is not subtle, and it can also hinder ordinary golden elixirs.

But it has little effect on truly talented people.

Wu Yuan was just pretending.

Immediately, Wu Yuan closed his eyes and seemed to be adjusting his breath, but in fact more than 90% of his mind and consciousness were placed in the upper Dantian.

Only 10% is left to guard the surrounding area.

"Still devouring the blood mist?" Wu Yuan waited patiently. He was surprised and happy in his heart. What surprised him was that he didn't know what the black tower would eventually evolve into.

Fortunately, according to past rules, every time the black tower changes, it will bring huge benefits.

..."What is Wu Yuan doing?"

"Just rest."

"He didn't fight for long. Logically, he doesn't need to rest." As one of the most watched geniuses, Wu Yuan's sudden strange behavior naturally attracted the attention of many immortals and star masters.

Of course, I only pay attention to one or two things.

Immediately, most of these Star Lords and Celestial Immortals turned their attention to other geniuses.

Similar things are not uncommon in the blood-refining battlefield. Occasionally, a genius will have an epiphany during the bloody battles and then immediately retreat for several days.

The longest one is even a month of retreat.

Therefore, Wu Yuan’s actions.

Not particularly bizarre.

"Could it be that something suddenly came to mind during the battle?" Star Master Yin He and Star Master Chendeng both paid close attention to Wu Yuan.

However, separated by endless time and space, they could not see through the reality of Wu Yuan just through the projection of the Blood Refining Fairyland.

…

Deep in the cave of the Blood Refining Battlefield, Wu Yuan sat cross-legged for two full hours.

His brows moved slightly.

His eyes still haven't opened.

"Swallowed it all?" Wu Yuan's mind and consciousness were completely concentrated in the Upper Dantian Palace, and his soul source was looking at the towering and endless black tower in the distance in astonishment.

now.
To be continued...