Figuring out the crux of the alchemy failure, Lu Chen did not rush to try to refine a furnace of Nine Treasure Quenching Bone Pill again. He is now penniless, and the contribution value in the identity stone card has also been depleted, and he has just been heartbroken by refining and discarding a furnace of medicinal materials, and he really can't waste a single medicinal herb in the future.

Putting the bronze alchemy furnace aside, Lu Chen looked at the fire spirit mink and said, "Fish fire, breathe fire." Although the fire spirit marten didn't know what Lu Chen wanted, he didn't question it, and immediately grinned and spit fire when he heard this.

A scorching demon beast spiritual fire erupted, and Lu Chen's fingertips burst out wisps of pale golden true qi at the same time, and he flicked his fingers to control the fire changes. It was as if there was an invisible alchemy furnace in the void in front of him that was being controlled by him for alchemy, and the demon beast spirit fire was sometimes docile, sometimes fierce, sometimes like a flame whirlwind, sometimes like a lake of flames...... It's really varied.

After about two hours, Lu Chen gradually gave birth to a feeling of understanding. And the fire spirit marten is worthy of being a natural fire-breathing and fire-controlling spirit beast, not to mention very intelligent, after some attempts, there is a tacit understanding between Lu Chen and it. In many cases, Lu Chen didn't need to be reminded at all, and the fire spirit marten also knew when to change the fire to adapt to the changes.

"Let's go on, this time for real. Lu Chen threw it casually, and the bronze alchemy furnace flew into the air, falling steadily into the demon beast spirit fire and spinning.

After the simmering furnace, he flicked his fingers, and all kinds of medicinal materials flew into the bronze alchemy furnace. Then the lid was closed and the fire changed abruptly.

I saw that the bronze alchemy furnace was rotating fast and slow, and the demon beast spiritual fire was strong and weak. I don't know how long it took, the speed of the bronze alchemy furnace first suddenly became faster, and it turned into a blurred bronze light and shadow in the scorching demon beast spiritual fire.

After a few moments, the speed of the bronze alchemy furnace slowed down a little bit, until it came to a complete stop.

He stretched out his hand, and the bronze alchemy furnace fell back into his hand. Tap the top of the furnace, and the Dan furnace will open in response. And at the moment when the Dan furnace was unveiled, a dazzling ray of light rushed out of the bronze alchemy furnace.

Under the pill, there is neither Danxiang nor Danxia.

Medium-grade pills, after the pill is completed, the light fragrance is permeated.

The high-grade elixir, after the pill is completed, the sun shines.

As soon as Danxia came out, the top-grade Nine Treasure Quenching Bone Pill was successfully refined!

Regarding the division of Dan medicine grades, Lu Chen still learned about it in Fei Ying's Alchemy Cave Mansion. At this moment, he was slightly surprised, although he had expected to be able to refine this furnace of Nine Treasure Quenching Bone Pill successfully, but in his mind, it was already very good to be able to refine the lower-grade Nine Treasure Quenching Bone Pill, where would he have expected that the second shot would be to refine the high-grade Nine Treasure Quenching Bone Pill.

After a while, the glow converged, and he took the top-grade Nine Treasure Quenching Bone Pill in his hand to play with it, this Nine Treasure Quenching Bone Pill was about the size of a dragon's eye, and the whole body was emerald green, like a jade gem. Although there was no medicinal fragrance, the surface of the elixir would sometimes flash with a touch of alluring brilliance.

When playing with the elixir, Lu Chen's eyebrows did not show the slightest look of pride. It stands to reason that he is a Qi Sea Realm cultivator, and he has refined the glowing Nine Treasure Quenching Bone Pill, and he can already be called a mortal-level high-grade alchemist, and he is at the same level as Younuo. But his own family knew his own affairs, and he only mastered the refining of one elixir, while Younuo mastered the refining of at least ten elixirs, or even more.

Successfully refining a top-grade Nine Treasure Quenching Bone Pill, Lu Chen was full of energy, grinned, and said to the Fire Spirit Mink, "Let's continue." ”

Hearing this, the fire spirit marten nodded like pounding garlic, it naturally had no opinion, aimed at the purple gourd and took a long sip, swallowed dozens of drops of fire essence into its abdomen, and immediately spewed out a hot demon beast spiritual fire.

Seeing this, Lu Chen nodded secretly, and could see that the fire spirit marten first devoured the essence of fire, and then continued to breathe fire to help himself alchemy, although this process was repeated and seemed extremely boring, in fact, the fire spirit marten benefited a lot. Just a while ago, the color of the pinch of purple hair on the top of the fire spirit marten was much more gorgeous.

And with the increase in the number of cooperation, there is more and more tacit understanding between Lu Chen and the fire spirit mink, and in the end, he doesn't need to be reminded halfway after almost a furnace of elixir is refined, the fire spirit marten can change the fire in time every time.

After refining dozens of Nine Treasure Quenching Bone Pills in a row, he didn't even need to deliberately perform the fire control technique, he only needed to pay attention to the changes in the Dan furnace, and the time to refine a Nine Treasure Quenching Bone Pill was greatly shortened. And when he cooperated with the fire spirit marten, even if he didn't deliberately comprehend the fire control, the fire control technique was inexplicably enhanced.

Glancing at the fire spirit mink, Lu Chen suddenly understood that the improvement of his comprehension of fire control techniques was inseparable from the fire spirit marten—the fire spirit marten could help people improve their mastery of fire control techniques! This may be related to the fact that it was born a fire-breathing and fire-controlling spirit animal. As soon as he thought about this, Lu Chen realized that this fire spirit marten was worth a lot of money.

The fire spirit marten is naturally sensitive to fire-attribute spiritual objects, and can also help people improve their mastery of fire control, and can breathe fire and control fire. For an alchemist, the Fire Spirit Marten is simply a treasure. Even if Lu Chen was not an alchemist, he was amazed after realizing the value of the Fire Spirit Marten at this moment.

Such a valuable spirit beast companion is not something that anyone can take with him casually, and Younuo obviously knows Jiang Li, Xia Hantian, and Bai Murong. Could it be that Younuo's identity is also the same as Jiang Li and the others, the son of a county marquis!Lu Chen secretly guessed in his heart, inexplicably feeling that his guess was very likely to be true.

After three days, all the 400 medicinal materials were refined, and Lu Chen harvested 10 high-grade Jiubao Quenching Bone Pills, 30 medium-grade Jiubao Quenching Bone Pills, and 200 lower-grade Jiubao Quenching Bone Pills, a total of 240 Jiubao Quenching Bone Pills, and refining 160 medicinal materials.

Although one hundred and sixty medicinal materials were abolished, the sixty percent success rate was already a miracle for him who was refining pills for the first time!

And his comprehension of fire control has also reached a higher level, and if he is alone in alchemy, the time will at least triple, and the failure rate will be higher.

After three days and two nights of sleeplessness, he finished refining four hundred medicinal materials in one go, which really tired the fire spirit marten enough. At the moment of the end of the alchemy, the fire spirit marten breathed a sigh of relief, holding the purple gourd and eating the essence of fire. After that, the fire spirit marten glanced at Lu Chen strangely, surprised how this human was more demonic than a demon beast, and then it lay on the table and put out a "big" character and fell asleep without any image.

Lu Chen has cultivated into the body of ice muscles, and he has already opened up the sea of knowledge, and his energy is extraordinary, except for the slight lack of true qi at this moment, he is still full of energy. However, it is also related to the fact that Gu Linglong has not come over to absorb dragon qi in the past few days, otherwise he may not be able to really bear it.

Pull off the upper body, revealing the ice muscles, although the lines are soft, but not lose the masculinity, every inch of the skin seems to contain surging and amazing power.

He sat on his knees, palms facing up, palms spread over his left and right knees. Immediately, the little gluttony in the ice muscles of the upper body was urged, and an invisible devouring force suddenly took shape.

A bundle of fire essence rushed out of the purple gourd, and in an instant, like a bundle of hair, it suddenly spread out, turning into forty or fifty threads of fire essence and submerging into his body. After the devouring and refining of the little gluttony, wisps of fire essence turned into inexplicable energy. With about a cup of tea, the body is full of the essence of fire.

At this time, he pinched up a top-grade Nine Treasure Quenching Bone Pill, took a deep breath, and then opened his mouth to swallow it into his stomach. The pill rolled down his throat, like swallowing an ice marble, and a cool sensation passed vertically through his chest. Ten breaths later, a wave of heat escaped from the depths of the abdomen, and the power of the gossamer-like elixir swam through the body, burrowing into the bones around the body.

Suddenly, Lu Chen's brows furrowed, his rock-steady body trembled violently, and then he snorted heavily, as if he was sitting on the spot and forcibly carrying a punch from a Zhengang Realm powerhouse, his chest was extremely tight, and his face was flushed. And this is just the beginning, as the power of the medicine surges, more intense pain hits.

His face was hideous, his clear eyes turned into a pair of bloody eyes at this moment, the blood tendons on his body trembled and twisted wildly due to pain, and his body trembled like chaff.

The sea of knowledge suddenly dispersed under the impact of pain, and the lightning and thunder in the sea of knowledge thundered, and the waves were ups and downs.

Even so, his waist is still straight.

No matter how strong the pain is, it can't overwhelm him!

"Roar—"

Lu Chen let out a dull roar, like the fury of an ancient beast. And the fire spirit marten was already sleeping very deeply, and under his roar, he suddenly woke up from his sleep. The fire spirit marten rolled over with a grunt, and was slightly stunned at first, as if it hadn't understood what was going on. Immediately sensing Lu Chen's abnormality, it looked at Lu Chen with horror in its eyes, not afraid of Lu Chen, but not knowing why Lu Chen had suffered such terrible pain.

At this moment, a beautiful girl's figure flashed from the back hall of the cave, it was Gu Linglong.

"Are you cultivating with the Nine Treasure Quenching Bone Pill?" asked Gu Linglong.

Although Lu Chen's face was hideous and his body trembled, he did not lose his mind, and nodded slightly when he heard the words.

"It's just the beginning, enjoy it. Gu Linglong said lightly. As she spoke, the corners of her mouth hooked up with a sly smile, as if it was a great pleasure for her to see Lu Chen endure pain and cultivate like this.

And Gu Linglong didn't tell Lu Chen that the pain when he used the second Nine Treasure Quenching Bone Pill to cultivate would be stronger than the first. And the pain when using the third Nine Treasure Quenching Bone Pill to cultivate would be stronger than the second. And so on, every time you cultivate, your pain will increase!

Lu Chen's face was hideous, and he couldn't see the change in his expression, but he secretly thought in his heart that he was afraid that he would be put on a role by Gu Linglong. When Gu Linglong taught the Gluttonous Devouring Heaven Sutra, he must have known the drawbacks of cultivating this exercise. However, she didn't say it explicitly, seeing that she was in pain at the moment, she was still proud, and Lu Chen knew that Gu Linglong was not at ease when she first taught the exercises. Gu Linglong didn't say it, but she must still be worried about the chest attack in her heart. Later, he accidentally saw her bathing, which undoubtedly added insult to injury.

Another wave of pain hit, and Lu Chen suppressed and stopped roaring.

And when cultivating with the Nine Treasure Quenching Body Fluid, he also needed to endure great pain, and before cultivating, Lu Chen had already prepared. But when the medicinal power of the Nine Treasure Quenching Bone Pill was truly powerful, he immediately realized that the two kinds of pain were really different from each other.

Gu Linglong looked at it for a while, and seeing that Lu Chen was no longer roaring, she snorted lightly, turned around and walked back to the back hall of the cave.