"Gu poison?"

As soon as these words were spoken, Liu Yifei and the others were shocked!

"How could this be? My grandfather has always done good deeds, saving countless patients. How could someone use Gu poison on him? You're lying!" Liu Yifei said with a distorted expression.

"Lying? Haha, to be honest, I don't have any good impressions of your Medicine King Hall, so there's no need for me to lie to you for fun."

Lin Fan looked at Liu Yifei's twisted face, smiled faintly, and with a wave of his hand, smashed the basin he was holding onto the ground!

"Crash!"

The basin shattered into pieces, and a black-brown liquid seeped out from the soil beneath, releasing a pungent stench that quickly spread, much like the black liquid Liu Houde had vomited, but even more nauseating!

"Ugh~ Ugh~ Ugh~"

Someone couldn't hold it in and ran out covering their mouth to vomit.

Gu Qingcheng furrowed her willow-like brows, pinching her nose in disdain, "This is just too smelly."

"This is already quite mild; some are worse, making people faint just from the smell." Lin Fan also looked disgusted.

"Hiss~ Hiss~"

At this moment, with a sound like a mosquito's buzz, a fingernail-sized insect emerged from the soil, appearing terrified and attempting to flee.

However, Lin Fan had been watching the pile of soil and noticed it the moment it appeared, catching it in his hand!

"Hiss~ Hiss~"

The insect screeched.

"Little thing, trying to escape under my watchful eyes? You're overestimating yourself." Lin Fan said nonchalantly, then tossed the insect to Liu Yifei.

Liu Yifei caught it in his hand, looked at the little creature, and his face showed a trace of fear!

As a doctor, he was well aware of the dual nature of "Gu" as both poison and healer!

Gu is something more venomous and torturous than deadly "Cinnabar"!

In the remote corners of Yunnan, which is the base of the Miao race, almost every family raises Gu, and not understanding Gu could result in being deemed a traitor and expelled from their village. Even newborn infants were accompanied by Gu, raised with them until old age.

It's said that even if the people there fall ill, they never see doctors but ask the Miao race's most noble "Princess" for healing, who often magically cures them, so in the medical world, Gu is a mysterious existence, both poison and cure.

In terms of Gu's venomous nature, it can be said to be tasteless and colorless; once planted, it can harm someone without them even knowing, even in their sleep, truly killing invisibly!

Rumor has it that if a child there accidentally chokes on a fish bone, the mother would tell the child to swallow a few big mouthfuls of rice without chewing to send the fish bone down.

Then, they would have the child go to the doorway and chant someone's name, shouting loudly: "So-and-so has Gu, no morality, she used Gu on me, I know, if she doesn't take it back quickly, I won't spare her. Someday, I'll splash dung on her house, pick stones to throw at her roof, so her sons can't marry, and her daughters can't wed!"

By this shouting practice, the person who used Gu, upon hearing it, would be frightened and voluntarily withdraw the Gu.

For Lin Fan, this was also the first time encountering Gu poison, as the Miao people rarely wandered the Martial World and never participated in secular conflicts. Could it be those folks intend to involve themselves in worldly matters?

"Damn it, daring to harm my grandfather, you'll pay for this!"

Liu Yifei said viciously, gripping his hand to crush the insect into powder.

Lin Fan leisurely lit a cigarette, taking a deep inhale to mask the stench, saying, "Now do you believe my words?"

Liu Yifei looked somewhat ashamed, "I apologize for my previous attitude."

"Alright, cut the nonsense. To plant Gu, you need a seed and the Gu to combine; this insect is just a seed. The true Gu is still within your grandfather. Get me some silver needles." Lin Fan said indifferently.

"Quick, prepare silver needles for Divine Doctor Lin." Liu Yifei said hurriedly, his tone towards Lin Fan much improved.

Soon, a servant brought over a box of silver needles and a lit candle. Lin Fan extracted three needles of varying lengths and roasted them over the candle!

Iron conducts heat quickly, and in no time, the entire needle turned red-hot, but Lin Fan seemed unfazed, holding the needle steadily with two fingers, calm as a gentle breeze.

Witnessing this, Liu Yifei and the others were again amazed. He was sure that if it were him, he certainly couldn't achieve this level; only a Qi Gong Master could use Qi to reduce the heat transferred to the fingers.

At this moment, Liu Yifei's gaze towards Lin Fan became more respectful!

In no time, Lin Fan retracted the needles, saying, "Prop your grandfather up and take off his upper clothes."

Liu Yifei agreed immediately, not daring to hesitate. He quickly propped Liu Houde up and carefully removed his upper clothing.

Previously, Liu Houde's face appeared healthy and his breath stable, akin to someone five or six decades younger, but his body was nothing but skin and bones, with ribs and veins visibly protruding, truly a skeleton wrapped in skin!

Gu poison comes in many forms, and after seeing the insect in the basin, Lin Fan had confirmed the matching worm Gu. Liu Houde's illness was due to another worm inside him, devouring his life.

Lin Fan pinch the red-hot silver needles with two fingers. Without moving his hand, the needle started trembling at a certain frequency.

He took a deep breath; the Powerful Qi within him began circulating slowly, and strands of white steam emitted from the pores on his arm, channels transmitting the Qi into the needles he held.

"Shwish~"

Lin Fan narrowed his eyes and began his action!

"Puff!"

In a swift move, the first silver needle pierced into an acupuncture point on Liu Houde's back, followed by a second. Then, supporting Liu Houde's shoulder to turn him face forward, the third needle promptly entered a heart acupuncture point.

The entire action was seamless, fluid like flowing water, so swift it left onlookers bewildered, as if witnessing magic!

The three silver needles, heated to the point of scorching, had all their heat driven into Liu Houde's body by Lin Fan's Qi at once.

Soon, the flesh around the acupuncture points where the needles were inserted started to redden, strands of white steam seeped out of his body's pores, accompanied by beads of hot sweat soaking his upper body, looking as though he had just bathed.

The entire scene resembled a Martial Arts movie where a Martial Arts master was training!

One second, two seconds, one minute, two minutes...

As time ticked by, Lin Fan remained silent, eyes closed, quietly waiting!

Until five minutes had passed, with a "Ugh", Liu Houde opened his mouth and vomited a pool of stinking black liquid!

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