My mom is waiting for treatment, and you're summoning me to be a hero?

For the rest of the journey, everyone fell silent.

It wasn't until the carriage entered the city lord's mansion that Lin Mo finally spoke to Otmu.

"Go find me some of the best essences; I need them immediately."

After saying that, he pushed open the door and left.

He ignored the guards and servants who came to greet him.

He strode straight toward the alchemy area, which was specially designated deep within the mansion.

Shi Xuan could clearly feel the chill that seemed ready to erupt at any moment.

Aotemu felt a chill run down his spine as he looked at Lin Mo's retreating figure, and the image of Liu Yishou flashed through his mind.

It's not that I'm reluctant to part with it, but rather that I want to prepare a suitable coffin in advance.

After thinking about it, forget it.

Judging from the boss's current state, he'll probably be chopped into mincemeat by then.

……

Deep within the secluded courtyard, in a wooden hut with a sign that reads "Under Experimentation, Do Not Disturb," lies Liu Yishou's private alchemy room.

Lin Mo had just reached the door, and before his hand even touched the door knocker, Liu Yi's energetic voice came from inside.

"What? You've just returned, and you're already radiating murderous intent. Are you here to take my head?"

Lin Mo paused slightly, frowned, and pushed the door open to enter.

The alchemy room is filled with various herbs and minerals.

The materials for utensils were piled up like mountains.

On the central alchemy platform, a heating array was slowly operating, and fine bubbles were rising from the crystal flask on it.

Liu Yi was facing away from the door, bending over as he conducted an experiment.

He didn't turn his head, continuing to mutter to himself, as if talking to Lin Mo:

"I could feel that murderous aura even from halfway across the city lord's mansion. Young man, don't be so hot-tempered."

Lin Mo watched his focused back and suppressed the surging emotions in her heart.

His voice was cold and hard as he directly questioned, "I heard that you haven't been studying the stone-cloth herb these past few days."

Liu Yishou kept moving his hands without even shifting his shoulders.

"That's right. The medicinal properties of the stone-cloth herb are mild, but that's all. For ordinary people with weak constitutions, it's better than nothing, but for those who need to recover quickly, it's practically useless. Its upper limit is what it is, and I haven't bothered to study it."

His words were frank and even carried a hint of disdain for the herb *Salvia miltiorrhiza*.

This caused Lin Mo's suppressed killing intent to surge again!

His right hand was already on the hilt of the sword!

At this moment, Liu Yishou spoke again.

"Therefore, I combined Shi Qin's alchemy techniques with reference to several ancient incomplete formulas and spent three days refining that."

He casually pointed to the corner of the alchemy platform with his free left hand.

There, a transparent crystal bottle was placed, filled with a clear, transparent liquid.

Under the light of the indoor magic lamp, almost no color could be seen, with only an occasional, very faint milky white halo.

"I'll call this stuff 'Qingyuan Elixir' for now."

Liu Yishou finally completed the action he was performing.

He straightened up, picked up a piece of velvet cloth and wiped his hands, but still didn't turn around.

"The effects... are about three times stronger than the stone-cloth herb you mentioned. And most importantly—"

He paused, seemingly to emphasize what he was about to say.

"The production volume can be even greater! Although the main ingredients are a bit rare, the auxiliary materials are common and can be stably supplied by the famous trade routes in Beicheng. Even if Shi Qin leads people to produce in batches, there will be no problem."

Lin Mo's hand, which was resting on the sword hilt, loosened slightly.

Three times stronger? And it can be mass-produced?

The reason why so many Stonecloth herbs could be refined in such a short time was mainly because Stonecloth Village had a large stockpile of them.

That time, he almost used up all of Stoneclothes Village's reserves when he refined medicine.

This is also why he was so eager to enhance the efficacy of the stone-cloth herb and to give the gold amplifying agent to Shi Qin.

If this Qingyuan medicinal liquid is really as Liu Yishou said, then it is even more useful than the stone-cloth herb.

Liu Yishou seemed to be able to sense his emotional changes.

"Also, you're so obsessed with a potion that has absolutely no side effects. I bet you're planning to give it to ordinary people who can't handle any stimulation, like seriously ill people or women and children with no cultivation foundation."

"So yesterday we had that wooden figure try it on several patients and elderly people, using different dosages, and observed them for two whole days—"

He turned around and looked directly at Lin Mo for the first time.

Only then did Lin Mo realize that Liu Yishou's appearance was not as relaxed as his tone.

At this moment, his eyes were bloodshot and his face looked exhausted.

Even so, his eyes were sharp and bright.

"The result is that there are absolutely no side effects. You can use it without worry."

He spoke the last four words with absolute certainty.

The killing intent that had been gathering around Lin Mo vanished instantly.

He stood there, stunned, staring at Liu Yishou's calm and even slightly arrogant gaze.

Then he glanced at the clear bottle of Pure Source Elixir in the corner of the alchemy platform.

It turns out I had misunderstood.

This eccentric master was not outwardly compliant but inwardly defiant.

Instead, it's about solving your problem completely in a more efficient way!

He took a deep breath, stepped forward, and picked up the bottle of Qingyuan Elixir.

I uncorked the bottle and brought it close to my nose; it was colorless and odorless, just like water.

But just that one whiff was enough to clear Lin Mo's mind.

"Is it really... as miraculous as you say?"

Lin Mo's voice was still somewhat hoarse.

Upon hearing this, Liu Yishou raised his gray eyebrows.

A hint of displeasure appeared on his face as he straightened his slightly hunched back.

"Young man, you may question my character, but you must never question my alchemy skills! This bottle is the finished product, and over there on that shelf are more than a dozen different batches of experimental samples and detailed observation records, including before-and-after comparisons of the test subjects' physical conditions! Go see for yourself!"

This appearance dispelled Lin Mo's last remaining doubts.

He slowly pushed the cork back in.

He raised his head, looked at Liu Yishou with a complex expression, remained silent for a moment, and then uttered a few words with utmost sincerity:

"I'm sorry. Yes... I was in too much of a rush."

Lin Mo has never apologized to anyone since he was summoned.

Not to mention an apology with such a sincere attitude.

Liu Yishou seemed to have not expected this scene either. He was stunned for a moment, and then the displeasure on his face disappeared.

He waved his hand, his tone softening, "Never mind, concern leads to confusion, I understand."

He turned around, faced the alchemy platform again, picked up a notebook and began recording the data, his voice returning to its previous calm.

"Shi Qin said your demand is quite high, so she and others are in the workshop next door using my improved process to mass-produce the basic concentrated essence of Qingyuan Spirit Liquid. Go find her."

He paused, then added without turning his head, "Oh, and remember to close the door when you leave..."

Lin Mo stopped disturbing him and bowed to Liu Yishou's back.

Then he turned around and gently closed the heavy wooden door of the alchemy room.

Standing on the porch outside the door, Lin Mo let out a long, complete sigh of relief.

The tension in my shoulders eased slightly.

Looking at the clear liquid in his hand, he felt a surge of fear and relief.

Fortunately... I didn't do anything irreversible because of my impatience.

This Master Liu Yishou may have a peculiar temper, but... he is indeed very skilled, and he is actually very meticulous.

Killing them would be a huge loss!

At the same time, I'm glad that I didn't do anything too outrageous to him before.