Dugu Bo's concession eased the tense atmosphere between the two considerably.
"Enough with the nonsense," Dugu Bo snorted lightly and went straight to the point. "What was that medicine you mentioned earlier? What ingredients does it need? How long will it take to prepare?"
Lin Yang was slightly stunned. He hadn't expected Dugu Bo to skip the first method and choose the second one directly.
But he quickly understood the key point. This old poisoner didn't trust empty promises and wanted to test it himself first.
Dugu Yan didn't have a spirit bone, but he definitely did. This was also a form of test.
"The medicine is very simple. I can make it anytime at my place."
Lin Yang casually recited the names of several common herbs.
Dugu Bo frowned, somewhat skeptical. "These are all ordinary medicinal herbs. You're not trying to trick me, are you?"
Lin Yang shook his head, his expression calm. "Your Excellency, when ordinary herbs are combined properly, they can still produce miraculous effects. Seeing is believing. Why don't you try it yourself?"
Dugu Bo glanced at him and said nothing more.
Hmph, this kid really has heavy defenses!
"Then let's go to your place. I want to see if you can truly turn something rotten into something magical!"
Dugu Bo couldn't wait another moment. He grabbed Lin Yang's shoulder, soared into the air, and sped straight into the city, arriving at the location of Butterfly House.
"Is this your medical clinic?"
Dugu Bo looked at the ordinary little courtyard, his suspicion growing stronger.
"That's right."
Lin Yang pushed open the wooden door and happened to see Catherine tidying up herbs in the yard.
"Teacher, you're back…"
"Mhm," Lin Yang nodded. "After you finish putting the herbs away, go rest first. Don't wait for me for dinner."
"Understood, Teacher!"
Catherine sneaked a glance at the imposing Dugu Bo and obediently replied. As a child from a poor family, she knew best when to speak and when to stay silent. She wouldn't ask about things she shouldn't.
Afterward, Lin Yang led Dugu Bo to his laboratory.
The moment Dugu Bo stepped inside, he was drawn to the strange-shaped vessels filling the room. All these bottles, jars, and winding glass tubes — were they related to medicine refining?
This was completely different from the medicine refining he had imagined. No wonder the kid insisted on doing it here.
Lin Yang ignored his expression and said casually, "Sit wherever you like. I need some time to prepare."
"Mhm, go ahead!"
Dugu Bo replied and began touring the laboratory.
After circling around, he stopped in front of a wooden shelf full of bottles and jars. He picked up a test tube containing a pale green liquid, shook it lightly, and asked, "What is this?"
Lin Yang glanced over, then lowered his head again and continued sorting through the pile of medicinal ingredients. "An antidote. It can neutralize the toxins of most ordinary spirit beasts."
Dugu Bo said nothing. He put the test tube back and continued wandering around, eventually stopping in front of a wall.
The wall was covered with various diagrams: human vascular maps, skeletal maps, meridian maps, and some cross-sectional diagrams of what looked like the internal structures of certain animals.
Dugu Bo stared at these diagrams intently. His initially casual expression gradually turned serious.
This kid's research into the human body was actually this deep? Even he was far inferior in this regard.
Thinking about it carefully was downright terrifying. It was as if the boy had personally dissected a person from the inside out, layer by layer. Otherwise, these drawings could never be so precise and accurate. The distribution of blood vessels, the texture of muscles, even the five viscera and six bowels, and the arrangement of bones — everything was terrifyingly detailed.
Dugu Bo naturally didn't find anything wrong with it. Instead, he gained a few more points of confidence in Lin Yang. At least this kid truly had real skills.
He then walked over to Lin Yang's workbench.
He watched with his own eyes as Lin Yang processed the herbs one by one — grinding what needed grinding, extracting what needed extracting, then distilling, purifying, mixing evenly…
The entire process was smooth and fluid, without the slightest hesitation.
"Kid," Dugu Bo suddenly spoke up, "who exactly did you learn all these skills from?"
Lin Yang's hands didn't stop moving as he replied indifferently, "I figured it out myself."
"Figured it out yourself?" Dugu Bo scoffed. "You think I'm a three-year-old child?"
"If Your Excellency doesn't believe me, there's nothing I can do."
Dugu Bo was left speechless for a moment. He didn't know what to say, and his heart felt even more stifled. Trying to get any real information out of this kid's mouth was harder than ascending to heaven.
Soon, half an hour passed quietly.
Lin Yang stopped what he was doing. In his hand now was a test tube containing a pale yellow liquid that emitted a faint medicinal fragrance.
"It's ready!"
Dugu Bo hurriedly stepped forward, his eyes fixed tightly on the medicine. His throat moved, and his voice sounded a bit dry. "How do I use it?"
"Drink it directly." Lin Yang handed the test tube to Dugu Bo. "Your Excellency possesses powerful cultivation. The effects of this medicine made from ordinary herbs may be slightly weaker, but it is enough to verify whether it works."
Dugu Bo nodded slightly. "If it really works, I will definitely not go back on my previous promise."
With that, Dugu Bo took the test tube and downed it in one gulp.
Then, following Lin Yang's instructions, he circulated his spirit power and slowly guided the toxins in his body into his spirit bone.
A moment later, Dugu Bo opened his eyes. A flash of wild joy appeared in them.
It worked!
Although only a tiny bit had been expelled, he could clearly feel that the toxins that had plagued him for most of his life had been smoothly drawn into the spirit bone and completely suppressed.
If it was for Yanyan, she would only need five or six doses to completely resolve the toxins in her body.
Yanyan was saved!
Dugu Bo's heart surged with great joy. The stone that had pressed on his chest for more than ten years finally cracked open a seam at this moment.
"How does Your Excellency feel?"
In truth, Lin Yang's question was redundant. The answer was clear from Dugu Bo's expression.
"Not bad," Dugu Bo nodded. His voice carried a trace of excitement. "This medicine… works!"
Lin Yang nodded slightly. "If possible, Your Excellency can bring Senior Sister Dugu over. After I examine her condition, I can determine the exact medicine ratio."
"No," Dugu Bo flatly refused. "I want Yanyan to use the first method!"
Lin Yang showed a difficult expression. "Your Excellency, that requires heavenly materials and earthly treasures suited to her martial soul. This…"
"I have them!" Dugu Bo spoke with absolute certainty, his gaze burning as he stared at Lin Yang. "However, I need you to help me identify which heavenly materials and earthly treasures are suitable for Yanyan."
Without a doubt, Lin Yang's performance had completely conquered Dugu Bo, and he was finally willing to reveal his own secrets.
"Alright!" Lin Yang nodded without hesitation.
Without a doubt, what Dugu Bo was referring to was the Ice and Fire Yin Yang Well — and that was also Lin Yang's goal.
Although the entire process had deviated somewhat from what he had imagined, he had finally made contact with the Ice and Fire Yin Yang Well.