A hint of ecstasy flashed in Yu Han's eyes, and in this rotten wooden card, the formation essence of the life of the master of the medicine house was sealed.

The perception of a Formation Sect realm powerhouse can be imagined how terrifying it is.

When he was in the medicine house, the master of the medicine house did not tell him how to unlock the seal of the rotten wood card.

And he himself has taken out the rotten wood cards many times to try to find a way to solve the mysteries of those patterns, but he has never gained anything.

It was like a piece of rotten wood, having lost all its spirituality, and it couldn't see anything strange at all, so later, Yu Han gradually gave up wanting to continue to unravel it.

Instead, he put it on hold, wanting to wait for the formation path cultivation to be higher before continuing to try.

It's just that I didn't expect that at this moment, I was stimulated by the strange fire of the seventh fire realm, and the rotten wood card actually had a vision.

Yu Han's eyes were firmly fixed on the rotten wooden plaque suspended above his head.

At this moment, there was a misty light circulating on the rotten wood card, and under the continuous wrapping of the scorching fire, it exuded more and more a divine aura.

"The predecessor of the Lord of the Medicine House must have seen that my cultivation was not enough to support the cultivation of the inheritance in this rotten wooden card, so he didn't tell me the way to unlock it. ”

A grateful gleam flashed in his eyes.

"The seniors are really well-intentioned!"

Then, with one hand, the suspended rotten wooden plaque seemed to feel his breath and floated down towards his palm.

An unusually soft aura poured into his body from the rotten wooden card.

Yu Han couldn't help but look at it, and on the rotten wooden card, the strange dense texture seemed to come alive at this moment, constantly swimming.

And as those patterns swam around, they began to be combined into a series of mysterious patterns.

"The breath of the alien fire here should be enough to support the power of the powerhouse of the Bone Transformation Realm, I think the master of the Medicine Mansion, the seniors, also hope that I can start cultivating the things in this at that time!"

A faint light flashed in his eyes, and stripes began to appear in his palms, a full three hundred and sixty.

It was a Dao pattern that he had cultivated by himself.

At this moment, under the deliberate urging, the combination of three hundred and sixty patterns was intertwined, pouring into the rotten wood card, and it began to merge with the pattern on the rotten wood card.

The Dao diagrams above became brighter and brighter, and as the fusion of his Dao patterns deepened, the truths contained in those Dao diagrams became more and more deeply imprinted in his mind.

"Hum—"

Just when the fusion between the two sides finally reached a roundness, the rotten wooden card in his palm suddenly turned into a ray of light and drilled into the palm of his hand.

"This ......"

Yu Han was slightly stunned, but in the next moment, countless information began to pour into his mind.

"Eight Desolations Refining the Heart!"

A set of heart refining exercises that are the same as those of the "Five Hells Meditation Technique" clearly appeared, and there were no more than 100 words.

But every word was like a wedge, deeply imprinted in his mind, and that trace of crystal clear understanding made his soul feel refreshed.

"Such a powerful heart refining technique, this should be an exercise that can only be cultivated in the realm of the Array Sect, which can condense the divine power of the Eight Desolations and refine the mind. It's a pity that with my current strength, I can't withstand the power of the Eight Desolations at all!"

"I think it was created by the predecessors after they broke through to the Formation Sect, but although they can't be cultivated for the time being, they can complement the Five Hell Mind Contemplation Technique!"

Although the content in "Eight Desolations Refining the Heart" is not as detailed as "The Five Prisons Contemplating the Mind", it expounds the entire process of refining the heart from a macro perspective.

And for the degree of heart refining, I don't know how many times stronger than the "Five Hell Mind Meditation Technique"!

Yu Han sighed softly, forcibly held back the restlessness in his heart, and did not cultivate this set of supernatural powers, but began to comprehend his "Five Prisons Meditation Technique" by using it to elaborate!

Sure enough, even with the "Five Hells Mind Meditation Technique", there has been a lot of progress, although it has not broken through to the realm of the four prisons, but it has completely opened that layer of diaphragm.

Temporarily placing the "Eight Desolations Refining Heart Chapter", Yu Han's gaze fell on a virtual golden square table behind it.

On that table, thirteen scrolls were displayed side by side.

"These ...... Is it a formation?" Yu Han couldn't help but mutter, his mind flashing, and he threw it towards the scrolls.

"Eight Desolations and Thirteen Formations!"

Seeing this name, his eyes flashed, and at the same time, his arms couldn't help but tremble slightly.

"Sure enough, it is the formation left to me by my predecessors, my predecessors are strong in the realm of the formation sect, and the Nine Dragons Killing Array that I taught me before has great power, and now these Eight Desolation Thirteen Formations should be his most proud formation, and its power will be even stronger!"

Yu Han's primordial spirit kept circulating on the thirteen scrolls.

Thirteen scrolls were lined up, and the breath couldn't stop flowing out, and with the movement of his mind, the first scroll slowly opened, and a mysterious array appeared in front of him.

"Gossip Prison Heavenly Array!"

That Dao diagram was deeply engraved in his mind, but this formation was not something he could construct at this moment.

The condition required for it is that there are 800 patterns, which is still the most basic.

Yu Han gasped, eight hundred dao lines, that was already the level of a third-level formation master, and it was even about to reach the level of a fourth-level formation master.

"It seems that it is too early to open this rotten wooden card!" a flash of disappointment gradually flashed in his eyes.

Then towards the remaining twelve scrolls, it shrouded the past.

It's just that the other twelve scrolls, no matter how much he urges and tries, they can't open half a point.

Not even the light above has changed in the slightest.

The corners of Yu Han's mouth hooked up a trace of bitterness, shook his head and sighed: "It seems that my cultivation is still not enough, I am guarding a treasure mountain, but I can't get it, this feeling is really embarrassing!"

However, despite the indignation, his mind was not affected by this.

After experiencing the abolition of the dantian and the re-living of the dantian, the current Yu Han has transcended life and death, and he will not be touched by such a thing.

"Hum—"

There are only these two things left in the rotten wood card, whether it is "Eight Desolations Refining the Heart" or "Eight Desolations and Thirteen Formations", they are not something he can touch at this moment.

Therefore, Yu Han simply sealed them in the sea of knowledge space, if the progress speed of his cultivation could be maintained at the current level.

It may not be long before they are fully available.

While thinking about it, a piercing buzzing sound suddenly made his heart move, and then a heart-piercing pain struck.

Yu Han's face changed, and the true qi in his body surged out.

A strange fire unexpectedly broke through the barrier of the Sword Intent Galaxy and landed on his arm.

In just an instant, the flesh rolled up and turned into a charred color.

"What a terrible flame!" Yu Han gritted his teeth, his true qi filled and expelled the power of the strange fire.

Because of his exposure to the secrets of the Rotten Wood brand, he was a little distracted.

This caused the sword intent galaxy to not flow smoothly and naturally, and a wisp of strange fire leaked, causing the arm to be burned.

He took a deep breath and completely collected his mind, the sword intent galaxy continued to bloom with a demonic light above his head, and more and more terrifying aura flowed wildly, gradually forming an unattainable terrifying force.

One hundred and eight big stars swirled around, gradually releasing a brilliant aura, and with the refining of the different fires, the light circulating on those big stars became more and more shining and pure.

"Sure enough, the power of this seventh flame is the most powerful, and at this speed, the Sword Intent Galaxy should be able to completely refine and purify it in less than ten days!"

He relaxed slightly, his gaze swept around, and after entering, he hadn't completely looked at this seventh fire realm.

However, as soon as he cast his gaze, his face immediately changed greatly, and a trembling from the bottom of his heart spontaneously arose.

At this moment, the surrounding area is no longer covered by strange fires like before.

Those strange fires that were floating around him actually formed one fireball after another, and they just surrounded him.

Those fireballs didn't look big, but they shocked him by the biggest they've ever been.

Because in addition to those fireballs, his body was also wrapped in a huge fireball.

What's even more strange is that those small fireballs around them are like one hundred and eight big stars in the same sword intent galaxy.

"It's ......"

He couldn't help but gasp, and at the same time, his face became much more solemn.

"When I was refining the Sword Intent Galaxy, these alien fires actually passed the contact with the Sword Intent Galaxy, learned the trajectory of the Sword Intent Galaxy, and thus turned into the same breath!"

His face grew more and more ugly.

It wasn't because of the huge pressure brought to him by those fireballs around him, but because of these strange fires, he was able to learn the Great Dao Rhyme of the Sword Intent Galaxy.

"Could it be that it has life, even an independent consciousness of its own?"

Yu Han's heart was cold, if the other party just had life, this might not be terrible.

But if this strange fire really has its own consciousness, then it is definitely enough to make people's hearts tremble.

Because once you have consciousness, the alien fire can launch all kinds of attacks, which is absolutely terrifying.

In this way, in the next moment, his fate has even begun to get out of his control.

"It's not going to work like this, you have to figure it out!" Yu Han gradually frowned.

With a flip of his palm, a strong and thick aura spread, and the medicine king ginseng obtained from the medicine house was already lying there quietly.

At the same time, a strong medicinal fragrance emanated from the Yao Wang ginseng.

"I can only test it through the Medicine King Ginseng, after the smelting of the Medicine King Ginseng, the power will be stronger, and the utilization rate will be greatly improved!" Yu Han frowned, but there was no half of ease.

But he knew that this was a gamble, and if he could win, maybe Da Qiankun Jue would be able to advance to the middle grade level by integrating the experience of Medicine King Ginseng.

And if it fails, not only Yaowang ginseng, but also myself, I am afraid that I will be trapped here forever.

At this thought, Yu Han took a deep breath.

The sword intent galaxy urged with all its might, enveloping the top of his head, and with the light of one hundred and eight big stars flashing, he temporarily resisted the surrounding strange fire.

At the same time, his eyes sparkled.

The medicine king ginseng in his palm flew out of his hand and shot directly into a small fireball closest to him.

"W-"

Under the gaze of Yu Han's gaze.

A scorching and refining sound came, and it was visible to the naked eye that the Medicine King Ginseng could not resist the terrible heat at all, and began to show signs of melting!

And at this moment, Yu Han's face changed suddenly.

At the moment when the Medicine King Ginseng was refined, all the small fireballs around it were like ants that had exploded.

Beat violently!