Night.

The gentle moonlight, like a beautiful woman's jade hand, caresses away the hustle and bustle of the Purple Qi Sect during the day, and makes it fall asleep in a gentle and comfortable place.

At this time, the Danfang house hidden in the pine forest looked dark and dead from afar, except for a large house in the northwest corner, which was brightly lit, as if it were day.

Inside the room, a young man in a blue robe and a middle-aged man in a silver robe sat cross-legged in front of a giant black gold dome.

A surging and vast spiritual power surged out from the mud pill palace of the middle-aged man in a silver pill robe, and instantly enveloped the black gold giant ding.

"Su Xiang, two copies of the ten-year Flying Flame Grass, purify!" said the middle-aged man in the silver robe.

The young man named "Su Xiang" replied "yes", and an invisible spiritual power surged out from his Mud Pill Palace, and he quickly selected two herbs with rising blue flames from a medicine basket, but the blue flames were not hot at all.

"Purify!"

Su Xiang's hands formed a furnace shape, and he saw that the two flying flame grasses wrapped in spiritual power withered rapidly, and finally turned into two drops of burning blue liquid.

"A nine-year-old snow fruit, peel and flesh, leave the core, and store it cold!" the middle-aged man in the silver-robed robe spoke again.

Su Xiang took out another spiritual power and selected a snow-like fruit in another basket. This fruit is pure white, the flesh is transparent, and the core in the center of the fruit is shining faintly, which makes people look very clear.

"Hiss, hiss, hiss, hiss!"

I saw that the spiritual power that wrapped the snow fruit seemed to have turned into a spinning flying knife in an instant, and in three or four breaths, all the skin and flesh of the snow fruit were removed, leaving only the crystal clear core.

At this time, the middle-aged man in the silver-clothed dan-robe took out a small wooden bottle from the long sleeves of the dan-robe, pulled off the cork, and flicked his fingers on the wooden bottle, and a drop of bright red blood flew out.

"Master, is this the Demon Blood of the Netherworld Emperor?" Su Xiang looked at the drop of blood that flew out, his eyes flashed with eagerness, and he couldn't help but ask.

"This bottle of demonic blood is only one of the ten drops of demonic blood in the body of the Netherworld Emperor, but the destructive power it contains is comparable to that of a monk in the middle of the Vein Realm. Su Xiang, you are just a cultivator of the Spirit Realm, and you will be a teacher for a while to eliminate the demonic nature of the demon blood, you step back! Don't let the power of the demon blood hurt you!"

"Master, what about you, if refining the 'Reverse Demon Blood Pill' is so dangerous, we might as well give up!" Su Xiang said with some concern.

The middle-aged man in the silver-clothed Dan robe stared at him, and said in a deep voice: "Give up!? It has been five years since the teacher stayed at the stage of the Fan Yin Dan Master, if he can refine the 'Reverse Demon Blood Pill' and other six-grade silver-patterned pills, then at the 'Wen Dan Trial Meeting' in three months, the teacher will definitely be able to shine and become the youngest Dan master to refine the six-grade silver pattern pill." At that time, the elders of the Four Sects of the Dan Alliance will elect me as the Diyin Dan Master! The name Ning Baicao will definitely go down in the history of Dan, and Master Yiding will also look at me differently. In the end, looking up to the sky and smiling, there seemed to be a sense of arrogance burning in the eyes of the clear gods.

The middle-aged man in the silver-clothed Dan robe was Dan Shi Ning Baicao, and the young man on the side was the sultan who gave Li Shan's "Baidanlu" and the red Dan robe, Su Xiang!

The lights in the room seemed to feel the momentum that erupted on Ning Baicao's body, and swayed lightly a few times.

"Demonic!"

The vast spiritual power wrapped in demon blood immediately turned into a transparent Danding, and the flames in the furnace were monstrous, burning the drop of demon blood.

And Ning Baicao's face also became extremely pale, and even hot sweat oozed from his forehead and neck, obviously burning demon blood consumed his huge spiritual power.

At this moment, the demon blood actually emitted a burst of mournful female voices, which was simply heartbreaking.

At the same time, a terrifying aura containing endless killing erupted from the demonic blood, instantly breaking through the shackles of spiritual power and gushing out of the transparent Danding.

"It's not good, the breath released by this drop of demonic blood is close to the full force of the Formation Realm Cultivator. Su Xiang, quickly give me the Flame Liquid and Snow Soul Core, and suppress the attack of demon blood for the sake of the teacher!"

Where did Su Xiang dare to hesitate, and poured all his spiritual power into the "Flame Liquid, Snow Soul Core", and listened to the two sounds of "whoosh, whoosh" sounded through the sky, and two arcs of light, one blue and one white, flew towards the drop of demon blood.

Ning Baicao praised well, and read in his mouth: "The flame is yang, the snow spirit turns into yin, one yang and one yin, suppress the demon blood!" After speaking, as soon as he gritted his teeth, the spiritual power of the sea surged again, like a sharp knife piercing the terrifying aura of the demonic blood and the mountains and seas, opening up a path.

And the "Flame Liquid, Snow Soul Core" also seemed to hear Ning Baicao's call, and through this path, through the surging killing aura, it bombarded the demon blood in an instant.

A magical scene happened, the Flame Liquid and the Snow Spirit Core were forcibly fused together after colliding with the demon blood.

The furious, terrifying killing aura ceased in an instant, and quickly withered and vanished, as if it had never erupted.

"Bold, I am the blood of the Netherworld, and you dare to erase my demonic nature. Mistress Teji will come to settle accounts with you!" came the woman's cold voice.

"Su Xiang, help the teacher, send the demon blood into the Wujin Danding, I want to refine the 'Reverse Demon Blood Pill'!" Ning Baicao gasped a few times quickly, at this moment, his spiritual power was almost exhausted.

"Yes, Master!"

The tumbling spiritual power on Su Xiang's body spread, and it merged with Ning Baicao's spiritual power, and his strength immediately soared, and the big house was once again occupied by majestic spiritual power.

"Open Danding!" Ning Baicao said in a loud voice.

A pure spiritual power was injected into the sun and moon wheels in the center of the Wujin Danding, and suddenly the Danding radiated a golden light, and the lid of the Ding rumbled open in that piece of golden light.

"Ding's Realm, suck!"

A powerful suction force poured out of the Wujin Danding, sucking in the demonic blood fused with the flame liquid and the snow spirit core in one gulp.

The demon blood let out a last miserable wail, and then fell silent again.

The lid of the Wujin Dan Ding was closed, and the spiritual power in the house turned into a fire of life and death into the Ding Furnace, and the raging flames burned, starting the refining of the "Reverse Demon Blood Pill".

The huge consumption of spiritual power made Ning Baicao and Su Xiang look terrifying.

"Su Xiang, recuperate your spiritual sense, enter the Mud Pill Palace, and fall asleep!"

"Yes!"

Su Xiang's eyes closed slightly, he breathed steadily, and withdrew all the remaining spiritual power back into the Mud Pill Palace.

At this time, there was silence in the room, only the beating sound of the fire of life and death in the Danding, Ning Baicao stared at Wujin Danding, he was thinking that this drop of demon blood could not eliminate the demonic nature, and if the demonic nature was not removed, it would affect the quality of the Dan, I am afraid that this "Reverse Demon Blood Pill" is a semi-finished product at most.