However, refining the sword soul, how difficult it is, to this kind of thing born from the artifact, although there is no attack power, but the spiritual power and soul strength are extremely powerful, it is not comparable to ordinary people at all, and the devouring demon knife is the first artifact in the world, almost beyond the peerless ranks, his sword soul is probably more tenacious than the true lord soul, terrifying.

In the empty golden hall, only Situ Yu was left.

He had stood here for a full day and a night, holding a simple stone knife in his hand, and had been exploring how to refine the sword soul in it.

Tried a lot of methods, forcibly refining with spiritual power, using the soul power to forcibly penetrate it, and even using the power of the law to use it, but it didn't work, and even made the ancient knife not move at all, and even Situ Yu couldn't sense whether there was a sword soul in it.

Looking at this simple and unpretentious stone knife, Situ Yu felt that it was like a thousand-year-old king who had retracted into a turtle shell, and he had no idea where to start.

"If you want to refine the sword soul in it, you must first detain the sword soul, otherwise you can't do it at all. Situ Yu was a little worried, and after hesitating for a moment, he suddenly raised his hand and slammed it on the stone knife.

"Bell!"

With a loud bang, the stone knife shook violently under the destruction of the powerful and terrifying aura, but it was still intact, not even a single crack.

"It's so strong?" This made Situ Yu a little surprised, how powerful his palm was, even a small mountain could be flattened with one palm, and even the inferior artifact could be torn apart, but it couldn't damage this quaint stone knife.

This is also because Situ Yu really has no other way, so he has to want to destroy the stone knife and detain the sword soul inside.

"Bang!" Situ Yu took out several artifacts one after another and slashed.

Even the strength to feed has been exerted, but it has never been able to damage a single bit.

"I don't believe it, it's just a stone knife, even if it has a knife soul to nourish and deteriorate, how strong it can be, see if you can compare to a superb artifact. Situ Yu was anxious and forced to take out the demon blade.

Although the divine soul in the Demon Blade has disappeared, the material of the artifact itself is still supreme, and it is still among the best. The sturdiness is incomparably stronger, far surpassing ordinary artifacts, and this is also the highest quality treasure in his hands.

A trace of cold and bone-chilling black qi overflowed from the seemingly ordinary dagger, and in an instant, the entire golden hall ground was covered with a layer of frost, and the air was filled with a terrifying murderous aura and that eerie cold chill, if an ordinary spirit person broke in, I am afraid that he would be killed by this terrible murderous aura in an instant.

After all these years of recuperation, absorbing most of the killing and death qi, the demon blade has become stronger and stronger, and has almost recovered the aura contained in the artifact itself, and the only thing missing is the divine soul.

However, to Situ Yu's surprise, as soon as the demon blade was taken out, the original simple stone knife on the side suddenly vibrated and flashed with a trace of golden brilliance.

And the demon blade in his hand was also trembling, as if two old friends who had not seen each other for a long time had suddenly met, and he seemed extremely excited.

This strange scene surprised Situ Yu and him.

Unexpectedly, the soul of the Devouring Demon Knife actually had some kind of connection with the Demon Blade, which made the silent soul reflect.

A trace of jet-black death aura seeped from the demon's blade, swimming in the air, slowly heading towards the stone knife on the ground. And the simple and unpretentious stone knives on the ground trembled more and more, and a violent roar faintly came from them.

A ray of golden light gradually seeped out, and in an instant, the entire stone knife was enveloped.

Under Situ Yu's excited and surprised gaze, the golden brilliance slowly emerged, detached from the stone knife itself, suspended in the air, and condensed into a large knife, the shape of which was exactly the same as the Devouring Demon Knife.

"Whew......"

Suddenly, a dragon's roar sounded in the empty golden hall. The terrifying majesty filled the surroundings, the oppressed temple was trembling, Situ Yu couldn't help but tremble all over his body, the terrifying majesty actually made him feel palpitations, his soul trembled, and the bones of his whole body were clucking, and he was about to be unable to stand it.

"Divine Soul...... This is the soul of the Devouring Demon Knife......" Situ Yu was incoherent with excitement, his teeth were shivering, and he couldn't help but roar angrily.

It's too powerful, although this divine soul doesn't have unparalleled attack power, but it contains the majesty of the Devouring Demon Knife, and the Devouring Demon Knife that has lost its divine soul can't be fully dispatched although its strength is undiminished.

Of course, the Divine Soul has no attack power, so it has to be a pure physical attack.

The golden knife-shaped divine soul gradually became entangled with those black gases, and the dragon-shaped divine soul suddenly turned into a golden five-clawed golden dragon, wandering in the black mist, as if the divine dragon was riding the fog and clouds, and it was extremely wonderful.

Situ Yu couldn't figure out why the Devouring Demon Blade was related to the Demon Blade, which produced such a strange phenomenon.

'Could it be that the Demon Blade was also forged by the ancestor of Wu Tianzong?, or did the two originate from the same origin?' Situ Yu was puzzled, but he couldn't know the secret of this ancient period.

However, at this time, he didn't have time to think about that, and the top priority was to collect the divine soul and refine it.

Originally, in the eyes of Duan Ya and Situ Yu, refining the divine soul was basically hopeless, but the Demon Blade caused an unexpected change, which made Situ Yu see hope.

"The Demon Blade has already fused with me and become my Origin Power, if I use the death power of the Demon Blade to seal the Divine Soul and slowly refine it, and pierce it with a drop of water, I believe that I will definitely be able to absolutely refine the Divine Soul that devours the Demon Blade. Situ Yu's eyes lit up, he was excited, and he thought to himself in his heart.

Thinking of this, Situ Yu immediately urged the power in his body with hunger, pulling the death power of the demon blade, and controlling those black mist towards the golden dragon-like divine soul in it.

The black mist became denser and denser, slowly shrinking, and gradually enveloping the golden dragon inside.

The spirit inside has been sleeping for tens of thousands of years, and at this time it has just woken up, and it is still in a state of confusion. And Situ Yu was cautious, and slowly controlled the black mist to shrink slowly, for fear of alarming the spirit.

Under Situ Yu's cautious control, several hours passed before the black mist became condensed like substance, and finally shrank to a range of less than one meter.

In between, the Divine Soul was not aware of the danger at all, and seemed to be extremely fond of the breath of the Demon Blade.

"Seal!" Situ Yu was overjoyed, and suddenly pinched a magic seal, and a burst of black light came out of his hand, slamming into the cocoon formed by the black death qi that was like a substance.

In an instant, the black cocoon suddenly shrank and became smaller again, and the light on it flashed, and many dense runes appeared.

This is the seal formed by Situ Yu using the magic method of the Twelve Constellations Great Array.

"Whew......"

The golden dragon inside seemed to realize something, let out a violent roar, and began to rush wildly, but Situ Yu had already completed the sealing method, and it was too late.

No matter how powerful the spirit of the Devouring Demon Knife is, it has been sleeping for tens of thousands of years after all, and it has not been nourished by the body of the Devouring Demon Knife, and has been weakened a lot, and the death qi contained in the Demon Blade is already extremely powerful, after all, how can the divine soldier ranked third be mortal? And the Twelve Constellation Great Array is even more of a legendary divine array.

Seeing that the real one had sealed the divine soul, Situ Yu couldn't help but scream in surprise, and hurriedly reached out with a move to withdraw the black cocoon formed by the demon blade into his body.

"Since this demon sword-devouring divine soul is close to the demon blade, I will use the power of death to slowly refine it. Situ Yu couldn't help but grin proudly.

Hungry and thirsty, he intoxicated his mind, operated Xuangong, and controlled the black death qi in his body to slowly refine the sealed divine soul.

As soon as the black aura touched the golden dragon that was going crazy inside the seal, a terrifying soul power immediately poured out along that aura, and it rushed towards Situ Yu's sea of consciousness in an instant.

This force is incomparably fast, sudden, and incomparably thick, like a landslide and tsunami.

"Not good!" Situ Yu's face changed greatly, and he hurriedly withdrew that aura and cut off the connection with the seal. But Rao is like this, the terrifying soul power is still shocking, his consciousness is disturbed, his soul is swaying, a trace of cracks appear, and he has suffered a huge trauma.

"Such a powerful soul power, I didn't expect that after so many years, it is still so powerful, I am afraid that it is much stronger than the soul power of Broken Yellow Spring, and it is definitely comparable to the real lord. Situ Yu was shocked, a trace of vermilion blood flowed out of his seven orifices, and his face was pale. I was afraid in my heart, this was just the power of the moment, if he hadn't retreated in time, I was afraid that most of them would have been annihilated by the soul power of the divine soul, and his soul would be shattered immediately.

The Devouring Demon Knife was a peerless divine weapon that almost surpassed the ranks of peerless artifacts, and the spiritual power of its divine soul was comparable to the legendary god-level existence in its heyday. Even if he has been separated from the sword body for 10,000 years, he still has the spiritual power of the lord level.

After a long time, Situ Yu used the Soul Dementor Demon Sound Skill to repair the soul wound.

"Fortunately, I have cultivated the Soul Demon Sound Skill, otherwise this alone will make me shed my skin if I don't die. Situ Yu was furious.

After a few words, he gradually calmed down. "It seems that the Demon Blade and the Devouring Demon Blade are not very related, and they are not from the same source, but the simple Divine Soul is closer to it!"

"I can only try the Sky Swallowing Spell. Situ Yu frowned slightly, and tried again.

After having his previous experience, this time he was extremely careful, and did not immediately use the aura of the Heaven Swallowing Spell to infiltrate it, but slowly used the Heaven Swallowing Spell's absorption and refining properties outside the seal to slowly devour.

To Situ Yu's surprise, the Heaven Devouring Spell was indeed worthy of being a divine skill that could devour ten thousand laws, and even the divine soul could devour it, but this speed was extremely slow. But this is enough, just go on like this, and after a long time, of course, it will be able to be completely refined.