Demons twisted and distorted along with the glowing red-hot iron, their maniacal screams erupting directly in the minds of all present, threatening to bore through eardrums and shatter skulls. Whether they were pounding with hammers or casting spells, everyone's eyes reddened as if they had fallen into a crimson hell, where countless terrifying demons pounced to tear at them and drag them into the searing magma.

For the soul body of a Demon God to fully merge with the metal, fresh blood was needed, as old blood was no use; its essence energy had all dissipated.

Shi Feiyang used his own blood.

His true form was a thick, long Black Dragon, over a hundred zhang in length, easily producing several large vats of blood—roughly the amount a person might bleed from the gums while brushing their teeth.

The aim was not the blood itself but the essence energy contained within it. Releasing too much could damage the Primordial Qi.

Shi Feiyang cut his finger, and his blood, supported by spells, split into nine streams that were poured on the sword molds, hissing and smoking.

After repeated forging, his spiritual will completely integrated with that of the Demon God and the iron block, uniformly mixing without distinction.

On the second day, Shi Feiyang released another nine demons, repeating the process of the previous day.

For eighty-one days, with nine demons each day, he used a total of seven hundred twenty-nine demons, all melting into the precious iron.

Finally, nine sword molds emerged from the furnace, all black with hints of red, covered in dense talisman inscriptions. If one concentrated and listened closely, they could hear voices within the swords, like distant calls or soft prayers. If one listened even more intently, their Primordial Spirit would be sucked into the swords!

These Nine Swords, although only just sword molds in their initial form, possessed might far surpassing most of the Flying Swords in the world. Even the Three Yangs One Qi Sword would be at a disadvantage against them.

After the swords were initially forged, Shi Feiyang distributed the wages.

Yu Xiao and others stepped out of the Underground Palace, seeing the sun and breathing fresh air again, as if they had been reborn!

This past hundred-day experience of sword refining was like a journey through hell. Under Shi Feiyang's protection, they had "survived" to the end, learning much and consuming many of his elixirs. Now, their temperament and mana had both undergone a qualitative improvement.

"No, I must hurry back and cultivate in isolation!" Yu Xiao hastened his steps. "Next time I encounter a demon, I will know how to deal with it!"

Yang Li and Yu Zhong, among others, felt similarly, rushing back to the South Sea to prepare for intense cultivation.

This was also a kind of disguised Demon Tribulation. Having experienced it here and having their temperament refined, they would be able to face future Demon Tribulations with composure. It was as though they had preemptively overcome a future tribulation, diminishing some of its power.

The experience was the same, but how much one could improve depended on their own abilities.

Shi Feiyang did not leave his retreat; using Immortal Law to further refine the Nine Sword Molds and only emerged once they were obedient to his will as if they were part of his own body.

The Taiyin Hunyuan Ancestor was still assisting the White Bone God and Xu Wan with their sword molds and had not returned. Although both had hundreds of years of cultivation and were of Sect Leader Level, it was still quite forced for them, in terms of temperament and mana, to refine the Heavenly Demon Immortal Slaying Sword, and they were constantly encountering dangers, compelled to ask the Taiyin Hunyuan Ancestor for assistance.

Xu Feiniang had been at Mingyu Immortal Market, delicately expressing her desire to see the newly forged sword molds of Shi Feiyang.

Shi Feiyang generously took them out for her to observe, and Xu Feiniang's gaze was captured at a mere glance!

Shi Feiyang's sword forging used only the finest materials, the fiercest demons, and his own True Dragon Blood. He had also improved many aspects. The sword mold painstakingly forged by the Taiyin Hunyuan Ancestor over decades paled in comparison to Shi Feiyang's work; let alone that Shi Feiyang produced nine at once!

Xu Feiniang looked at the sword as if she were examining some peerless treasure, caressing the ridge of the blade and concentrating to listen to the various Demon sounds inside, "Righteous! This is the most authentic 'Secret Demon Divine Sound'!"

She looked and touched, and if not for minding her status, she would have liked to hug it and kiss it a few times. Such an excellent 'Heavenly Demon Immortal Slaying Sword', what great willpower one must have to suppress the desire to snatch it away? Even a good person would develop wicked thoughts!

"Compared to your 'Nine Swords', my 'Hundred Spirits Immortal-Slaying Sword' seems rather mediocre!" Xu Feiniang repeatedly sighed with admiration, reluctantly returning the sword.

Shi Feiyang consoled her with a few words and also praised her 'Hundred Spirits Immortal-Slaying Sword'.

Speaking of the 'Hundred Spirits Immortal-Slaying Sword', Xu Feiniang still had some pride. Ever since she arrived at the Mingyu Immortal Market, she had purchased many materials and upgraded her own 'Immortal Sword'.

She was nicknamed 'The Wondrous Immortal Maiden' and was the most adaptable. She could refine the 'Ten Thousand Year Spiritual Jade Paste', improving the medicine recipe, enhancing its spiritual effect, making the final medicinal strength even better than the original version by Xiankong Ancestor. The same went for sword refining.

Though her 'Hundred Spirits Immortal-Slaying Sword' was a notch below the 'Heavenly Demon Immortal Slaying Sword', she had enhanced its power quite a bit through her own methods.

Zen Master Xiao Yue, watching by the side, was also filled with awe and envy, repeatedly taking the sword to look at it.

Suddenly, Shi Feiyang said, "I've heard that the 'Twelve Supreme Heaven Divine Slaughter' refined by Grandmaster Ha Ha a thousand years ago was unique in the world, different from the techniques of other families. I wonder if it has been passed on to you?"

Zen Master Xiao Yue nodded, "Indeed, I have learned this technique."

"Oh, I've heard there are two types of 'Twelve Supreme Heaven Divine Slaughter,' one that is supported by twelve Heavenly Demons and one that is not. The former is said to be a hundred times more powerful than the latter. Which kind have you refined? Is it with the Heavenly Demon's support or without?"

Zen Master Xiao Yue sighed slightly upon hearing this, "Without."

"That's too bad," Shi Feiyang said with a look of regret on his face, "The power of the 'Twelve Supreme Heaven Divine Slaughter' is immense, and there are only so many sects in the world that know this spell. However, it seems they all practice the version without the Heavenly Demon's support. I thought I would be able to see a more ingenious method from you. Alas, it's my misfortune. Nevertheless... I've heard that without the Demon's support, its power is drastically reduced, and it would be restrained by the Righteous Path's Immortal Law, like the 'Taicing Mysterious Sect' of the East Sea with their 'Invisible Sword Energy', and the 'Taiyin Divine Thunder' from Qiantian, which can easily break it, and the one casting may suffer the backlash..."

In the original story, Zen Master Xiao Yue had expended ten years of his life and nearly killed himself casting the 'Twelve Supreme Heaven Divine Slaughter', only to have it destroyed by an Ascetic Monk with a single 'Taiyin Divine Thunder', and suffered the backlash of the Yin Demon.

Zen Master Xiao Yue felt displeased upon hearing this and was about to retort when Xu Feiniang, standing beside him, smiled and said, "Shi Fellow Daoist must have many Divine Demons in your possession, right?"

Zen Master Xiao Yue also instantly understood. With his insight, he could naturally see that there were many Divine Demons in the 'Immortal Slaying Sword'. If he could get twelve of them to be refined into his own 'Twelve Supreme Heaven Divine Slaughter', its power would immediately increase a hundredfold!

After thinking it over, he said to Shi Feiyang, "If Fellow Daoist Shi could gift me twelve Divine Demons of the same Dao Level as those in the sword, I am willing to give you the technique of the 'Twelve Supreme Heaven Divine Slaughter.'"

Shi Feiyang smiled and shook his head, "I'm not interested in the technique of the 'Twelve Supreme Heaven Divine Slaughter'. I prefer the 'Nine Heavens Mysterious Scripture.'"

Upon hearing this, both Zen Master Xiao Yue and Xu Feiniang's expressions changed.

The 'Nine Heavens Mysterious Scripture' was a direct inheritance Immortal Law of the Emei Sect, definitely not to be transmitted to outsiders, even if Zen Master Xiao Yue was already branded a traitor, he couldn't possibly share it with others.

Shi Feiyang had anticipated this reaction and smiled, "Although you have obtained 'Heavenly Wisdom' and 'Yiguang Twin Swords', in my opinion, it's still difficult to gain the upper hand against the Three Immortals of the East Sea. Based on what I understand, the Dao Level of the Three Immortals has greatly improved over the years. Xuan Zhenzi and the Ascetic Monk have reached the realm just before Ascension. They have not only refined swords at Fishing Rock, but also many formidable Magical Treasures.

For you to match them and create a new way, establishing a new Emei, you must acquire a Magical Treasure that can stabilize the sect's fortune. I have a set of 'Supreme Heaven Fierce Fire Flags' from the Huashan Sect, also twelve in number, which has reached its full potential. If you can exchange the 'Nine Heavens Mysterious Scripture' for them,

I will give you both the 'Supreme Heaven Fierce Fire Flags' and the twelve Divine Demons, and even help you to combine them into a set of Magical Treasures strong enough to stabilize the sect's fortune. Once released, the group of immortals from the Emei Sect will be subdued, giving you a foundation to stand on. Otherwise, it's all just castles in the air, merely drawing cakes to fill your hunger."

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