As Lu Guijiu walked through the bustling streets, he felt a sense of unease, as if someone was watching him from somewhere.

Su Yu noticed Lu Guijiu's displeased expression and asked, "Junior Brother, what's wrong?"

Lu Guijiu pursed his lips and said indifferently after a moment, "It's nothing."

Su Yu continued, "I heard there are rumors of a spiritual herb in this county. I wonder if it's true or not."

Lu Guijiu replied, "Let's hope it's true."

Su Yu gazed at Lu Guijiu with a smile, and it was evident that she indeed had feelings for him. Otherwise, she wouldn't have deliberately harmed Zhang Jingmo after being rejected by Lu Guijiu.

Ever since Zhang Jingmo saw Lu Guijiu in the water mirror, his expression had not been good. Even when Tianlu teased him a few times, he didn't retort as usual.

Seeing this, Tianlu thought Zhang Jingmo was worried about his disciple Lu Guijiu. He said, "Qingyuan, rest assured. I won't easily make a move against your disciple."

Zhang Jingmo responded with an indifferent "hmm" and said, "First, take me to see the place for concocting pills."

At Zhang Jingmo's request, Tianlu brought him to the pill room. Kuchan Valley was indeed extravagant. The pill room was even more luxurious and grand than Lingxu Sect's, and just the cauldron used for concocting pills was made of extremely rare ice-cold mysterious iron.

As an alchemist, Zhang Jingmo naturally couldn't keep his hands off the cauldron. He couldn't help but stroke the surface of the cauldron and sighed, "What a great cauldron."

Hearing this, Tianlu laughed and said, "If Qingyuan is willing, after concocting that pill, how about I gift this cauldron to you?"

Zhang Jingmo's eyes lit up and he asked, "Really?"

Tianlu said, "Really."

Zhang Jingmo said, "You also can't make a move against my disciple."

Tianlu smiled and said, "If you obediently concoct the pill, why would I need to make a move against your disciple?"

Zhang Jingmo nodded and said, "Alright, since your materials are ready, let's not delay. I'll start concocting the pill."

Tianlu also showed a pleased expression. The sooner Tianfeng was revived, the better it would be for him.

While Zhang Jingmo was preparing to enter closed-door cultivation to concoct the pill, the sect master had also found clues and started sending people to demand his return.

The first to arrive was a Nascent Soul cultivator, which showed how much importance Lingxu Sect placed on Zhang Jingmo.

However, Tianlu directly showed the letter written by Zhang Jingmo to that person and bluntly said that Zhang Jingmo was voluntarily concocting the pill.

After reading the letter, the Nascent Soul cultivator directly sneered three times and tore the letter to shreds, saying, "Valley Master, do you really take me for a fool?"

Tianlu was not angered and merely said, "If you don't believe it, there's nothing I can do. Qingyuan has already entered closed-door cultivation to concoct the pill and can't come out to explain to you."

Hearing Tianlu address Zhang Jingmo as Qingyuan, the Nascent Soul cultivator showed a subtle expression of disgust on his face and said, "Your Kuchan Valley is really made of a bunch of lunatics."

Tianlu said, "You flatter us."

The Nascent Soul Daoist coldly said, "Since Elder Zhang has already entered closed-door cultivation to concoct the pill, I won't insist further. However, once the pill concoction is finished, you must immediately send Elder Zhang back. Otherwise, there will be no peace between Lingxu Sect and Kuchan Valley."

Tianlu indifferently agreed.

The Nascent Soul Daoist left after saying that, proving to be a straightforward person.

As soon as the Nascent Soul Daoist left, Tianwan, who had been observing from behind, stepped forward and said, "Brother, do you really plan to let Zhang Jingmo go?"

Tianlu sneered and said, "After seeing my pill formula, it's not that easy to leave."

Tianwan said, "What if Lingxu Sect refuses to let the matter rest?"

Tianlu said, "If Zhang Jingmo voluntarily chooses to stay, can Lingxu Sect forcibly take him away?"

Hearing this, Tianwan also understood Tianlu's intention. She nodded and sighed softly, "Let's hope Zhang Jingmo doesn't disappoint us."

Tianlu said coldly, "It's best if that's the case."

The concoction method for the Heavenly Core Yellow Spring Pill was extremely complex. Each medicinal ingredient had to be refined before being melted into the pill, and the heat control had to be precise, not a bit more or less.

Zhang Jingmo had never concocted the Heavenly Core Yellow Spring Pill before, and he didn't intend to. The reason was simple. In the previous hundred or so lifetimes, Zhang Jingmo had never heard of the Heavenly Core Yellow Spring Pill appearing in the world. Such a top-grade pill would definitely cause a stir if it appeared, and even if Kuchan Valley kept it well-hidden, there would still be some news. However, Zhang Jingmo had never heard of this pill. This meant that in those few lifetimes, the alchemists found by Tianlu and Tianwan had never successfully concocted this pill.

If the pill couldn't be concocted, it was either because there was a problem with the pill formula or an issue with the materials. Zhang Jingmo had no intention of finding the error because the materials required for the Heavenly Core Yellow Spring Pill were too precious.

Each type of material, if taken outside, would be worth over a thousand spirit stones. Even for someone like Zhang Jingmo who used to be extravagant, seeing so many materials made his heart race.

But not concocting the Heavenly Core Yellow Spring Pill was definitely not an option. Outside, Tianwan and Tianlu were watching like tigers eyeing their prey. If Zhang Jingmo was still the alchemist from his first life who had no desires, he might not have had any solution.

However, the current Zhang Jingmo had long thought of a method.

Back when Zhang Jingmo was traveling the continent, he had seen countless amazing pills and medicines. Among them was a pill called the Yellow Spring Pill. It was said that this pill was a formula derived by later generations after the formula for the Heavenly Core Yellow Spring Pill was lost.

This formula had a similar effect to the Heavenly Core Yellow Spring Pill, both able to revive the dead and regenerate flesh and bones. However, there was an aftereffect. The medicinal effect of this pill could only last for a year.

After a year, the revived person would directly turn into a puddle of blood, and even immortals couldn't save them.

A year wasn't long for Zhang Jingmo, but it was enough.

Though its name was similar to the Heavenly Core Yellow Spring Pill, the Yellow Spring Pill's concoction method was much simpler. Moreover, most of the materials required were already prepared by Tianlu.

To concoct the Heavenly Core Yellow Spring Pill, it would take at least ten years or more. Because of this, Tianlu had prepared many spirit stones in the stone room where Zhang Jingmo was in closed-door cultivation for him to use in concocting the pill.

This was quite a windfall for Zhang Jingmo. He first collected all the spirit stones into his pouch, then put the unused materials into his Sumeru ring.

The three precious Yin Pearls naturally couldn't be used either. Zhang Jingmo opened the box to take a look, then closed it and casually tossed it into his ring.

In the time that followed, Zhang Jingmo began to focus all his energy on cultivation.

In fact, the techniques Zhang Jingmo practiced were not the most suitable for his cultivation, but because he was always at the Golden Core stage after each rebirth, he was powerless to change his cultivation methods.

However, even so, Zhang Jingmo still explored a path of his own. He used countless rare treasures and seized the opportunities of countless people, forcibly making himself worthy of being called a genius.

Due to the special nature of alchemy, no one could enter or leave the stone room to disturb him during his seclusion. Zhang Jingmo continuously absorbed the spiritual energy from the spirit stones given to him by Tianlu, and his cultivation speed was not much different from when he had a spiritual vein in his cave abode.

Zhang Jingmo closed his eyes for seven or eight years, and his cultivation, which had been stagnant, was finally on the verge of a breakthrough. Although he had not yet reached the middle stage of the Golden Core, the spiritual energy in his body was much more abundant, only lacking an opportunity for a breakthrough.

Three years before the ten-year agreement, Zhang Jingmo began to refine the Yellow Spring Pill.

Although the Yellow Spring Pill had only two fewer characters than the Heavenly Core Yellow Spring Pill, the refining method was much simpler. Zhang Jingmo controlled the furnace fire and added the materials into the cauldron in order.

The giant cauldron burned slowly, and Zhang Jingmo sat cross-legged in place with his eyes closed.

As time passed, a thin layer of water droplets began to appear on the surface of the giant cauldron with the added materials. The water droplets fell from the giant cauldron to the ground, burning a small hole in the jade stone.

Hearing that faint sound, Zhang Jingmo knew it was about time. He stoked the furnace fire to its peak and put the remaining materials into the furnace.

The water vapor on the giant cauldron accumulated more and more, eventually forming thin streams flowing to the ground in small amounts. The jade stone under the giant cauldron was corroded by the water flow, and it seemed that it would soon penetrate the stone slab.

Seeing this, Zhang Jingmo added the last medicinal ingredient into the cauldron.

As the last ingredient entered the cauldron, a faint rumble came from inside, as if something had exploded. The cauldron body even shook slightly.

A moment later, the thin stream of water on the surface of the cauldron changed color, gradually turning from black to transparent. Then, an unbelievable scene occurred. The moment the transparent water droplets fell to the ground, the originally corroded and pitted jade stone actually began to restore to its original state at a visible speed.

Zhang Jingmo silently counted in his heart. After seeing the jade stone completely restored, he calculated the time, then shouted and forcibly stopped the spirit fire burning under the furnace.

Almost at the same time, a huge thunder sounded in the sky. The thunder rumbled incessantly, as if the sky was about to collapse. Zhang Jingmo acted as if he couldn't hear it, and picked up the prepared spirit water and poured it into the furnace.