The group inside the isolated laboratory quietly awaited, so quiet that there was a palpable tension, because Lin Tian's alchemy would determine the success or failure of the "Blood Angel" improvement.

Lin Tian's spiritual sense seemed to be at its peak, capable of keenly perceiving the subtle change in the room, including everyone's emotions and the situation inside the cauldron. When he concentrated, it was as if he held a magnifying glass, observing everything around him in detail.

The blue flame continued to scorch the cauldron, when suddenly, the raven feather inside the cauldron ignited, strangely with black flames.

A cluster of black flames quietly burned, like Hell's Netherflame, or as if countless souls were drifting in the black smoke. The burning of the raven feather made everyone anxious, Musa was an alchemist but she had never seen such a unique refining method; she moved to step forward.

Charlotte quickly reached out to stop her and shook her head, indicating confidence in Lin Tian's skills. Although Charlotte was also anxious, she chose to trust Lin Tian.

While others were still tense, Lin Tian laughed, smiling at the burning raven feather. He had thought ordinary fire couldn't consume the raven feather, but now it seemed it could be done.

Under Lin Tian's skilled control, the flame delivered optimal efficiency and precise heating. The raven feather burned for ten minutes before leaving a pinch of black powder inside the cauldron. The powder was glossy black, just like the raven feather itself.

"Was it successful?" Musa asked softly, afraid to disturb Lin Tian.

Lin Tian poured out the black powder into a specially-crafted bottle and said, "It's only the successful refinement of the first ingredient, there are over twenty others to go."

"This counts as a good start." Charlotte said happily.

"Don't rush to celebrate, refinement is one of the simpler steps in alchemy. Forming pills is key. Wait until I refine the improved Blood Angel, then you can celebrate." Lin Tian was much calmer than them, although he hadn't done it before, he was confident.

"The second ingredient is the serpent skin of the Black Water King Snake…" Lin Tian murmured, taking out the serpent skin from a box.

The serpent skin felt slick and icy, similar to touching a living Black Water King Snake. It was bold of Lin Tian; an ordinary pharmacist would likely be startled touching this serpent skin.

Humans have a natural fear of these slippery reptiles, which is why sometimes in alchemy, high technical skill isn't sufficient; good mental resilience is necessary as well. Otherwise, if you're frightened by bizarre ingredients, how could you perform alchemy?

Lin Tian grasped the serpent skin and tossed it into the cauldron's roaring flame, but as the serpent skin entered the cauldron, the flame suddenly extinguished, as if ice water had been splashed on the fuel.

"How could this happen?" Charlotte frowned.

Lin Tian shook his head slightly without speaking. Zhang Lingyu gazed at the cauldron and explained for Lin Tian: "The Black Water King Snake belongs to the water element and counteracts fire. When fire is strong, water is evaporated; when water is strong, fire is extinguished. Clearly, the furnace fire inside the cauldron cannot withstand the counteraction of the Black Water King Snake."

"It's just a piece of serpent skin, isn't it?" Ai Wei was skeptical.

"I've seen the Black Water King Snake with my own eyes, it's more formidable than you can imagine. I dare say Charlotte might not defeat the Black Water King Snake without using the Soul-devouring Blade. Though its serpent skin is a dead thing, it contains the essence of the Black Water King Snake; it's not a simple object." Lin Tian said solemnly.

"What does this mean? Can't it be refined?" Ai Wei asked anxiously, seeing Lin Tian's serious expression.

Lin Tian said indifferently, "Of course not. I'm just a bit surprised. A pharmacist's path is long, and now I've only encountered the serpent skin of the Black Water King Snake and faced difficulty in alchemy. In the future, there will certainly be even tougher materials to refine. I lack a suitable cauldron."

In fact, it's not just the cauldron; Lin Tian also lacks a suitable weapon. As his strength grows, ordinary materials can no longer contain his power.

"Master, it is said that the highest level of cauldron among Huaxia pharmacists is the Shennong Ding. I can search for it with all my might for you." Charlotte said, her motives unclear.

Lin Tian was slightly surprised by the Lady Lord's eagerness to please, but still shook his head with amusement: "Do you think the Shennong Ding is like a supermarket cast-iron pot? Easily found if desired? The Shennong Ding has endured thousands of years and where it's hidden long forgotten, perhaps it lies in an ancient tomb, or maybe it's a pot in a farmer's home, or possibly an antique stored in someone's basement; who knows?"

Charlotte's expression didn't change, seemingly unaffected by Lin Tian's words.

Lin Tian didn't care and continued refining ingredients. The fuel in the cauldron's furnace was already extinguished, and Lin Tian tried several times to ignite it, but each time the flame automatically extinguished as soon as it approached the furnace, the serpent skin of the Black Water King Snake was more effective than a fire extinguisher.

Despite trying several times without success, even Zhang Lingyu grew anxious and said heavily, "Should we try my magic?"

Charlotte's magic could release flames, such as her "Karma Fire Red Lotus," which is powerful enough to deal with a piece of serpent skin.

But Lin Tian still refused, shaking his head: "I believe your magic can surely burn the serpent skin to charcoal, but you're not a pharmacist, you can't control the heat precisely. Who knows, one Karma Fire Red Lotus might truly turn the serpent skin to charcoal, where would I find another piece?"

Zhang Lingyu blushed a bit, feeling embarrassed. She spoke out of urgency, without considering a pharmacist's control over flames.

"Looks like we have to try this." Lin Tian said, but the group didn't understand his meaning, though Zhang Lingyu's expression changed, seeming to guess something.

Lin Tian didn't explain, he extended his palm, facing upward, a cluster of purple flames suddenly surged up. The appearance of the purple flame startled everyone, especially the Blood Clan present, whether it was Charlotte, Ai Wei, or Musa.

Especially Musa, facing the purple flame for the first time, she felt an irresistible aura of destruction, leaving her terrified. Now, Musa seemed to understand why the Lord of Charlotte would call this young man master.

Seeing everyone retreating, distancing themselves from the purple flame, Lin Tian had no choice but to shake his head in resignation. The purple flame is a unique ability of the Nu Ba lineage, possessing destructive properties; if they saw the purple flame emitted by the female zombie, they might be so frightened they would kneel in submission.

Of course, the serpent skin couldn't withstand such a large cluster of purple flames, and with a thought, the purple flame in Lin Tian's hand reduced by half in size. As the purple flame shrank, the group felt its weakened power.

Lin Tian looked at the serpent skin, still not satisfied, and with another thought, the purple flame diminished again by half, now only a quarter of its original size.

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