Late at night, return to the Mine Hall Cave Peak.

Lu Chen stepped into his cave and walked towards the main hall, his eyes swept away, and his eyes suddenly lit up. I saw a barefoot girl standing in the main hall of the cave.

The girl looks like she is about fifteen or six years old, as if she will never grow up. Her skin was as white as jade, and she had a beautiful and flawless face, but her height was only up to Lu Chen's shoulders. At this moment, the girl in a blue dress has a slim body, her shoulders are still shaved, her breasts are plump and full, her waist is just a hand, her legs are straight and slender, and her ends are graceful.

"Linglong, you're awake. Looking at the girl in the main hall of the cave, Lu Chen's eyes were full of smiles.

After the first battle in Xishan, on the way to the Red Fire Gate, before encountering Jiang Li, Gu Linglong absorbed dragon qi from Lu Chen's origin dragon crystal several times, and then Gu Linglong took the initiative to fall into a deep sleep. And after entering the Red Fire Gate, Lu Chen did not encounter any life and death crisis, and did not take the initiative to wake up the sleeping Gu Linglong, but she did not expect her to wake up tonight and return to her girlish form.

"This is the Red Fire Gate?" Gu Linglong asked, she had been awake for a while and had already checked the cave. However, he did not open the stone gate of the cave and walked out of Lu Chen's cave.

Hearing this, Lu Chen nodded slightly, as early as in the Black Mist Valley, Gu Linglong knew that he would eventually come to the Red Fire Sect, one of the three major sects in Qingyun County. At this moment, Gu Linglong asked this question, and Lu Chen was not surprised at all. Without waiting for Gu Linglong to continue to ask, Lu Chen told some things about the Red Fire Gate and what happened to him during this period of time.

Lu Chen had great trust in Gu Linglong, so naturally he didn't hide it at all. For more than half an hour, Gu Linglong had a general understanding of the Red Fire Gate. And when Lu Chen told Gu Linglong about the Red Fire Gate, Gu Linglong listened while absorbing dragon qi from Lu Chen's origin dragon crystal.

"It seems that you haven't delayed the cultivation of the Fire Proverb for a while, and you are not allowed to be lazy in the future. After absorbing the dragon qi, Gu Linglong said.

Lu Chen smiled and nodded, but his face was slightly pale, and his whole person became a little weaker. This is naturally related to the fact that the dragon qi in the Origin Dragon Crystal was drained and only an empty shell remained, but fortunately, the power of the Origin Dragon Crystal was only one of the powers he cultivated. Even if the dragon qi in the Origin Dragon Crystal was absorbed by Gu Linglong, the sea of qi in the dantian was still full of true qi, and it was not affected by the passage of dragon qi.

Not in a hurry to restore the dragon qi in the Origin Dragon Crystal, Lu Chen seemed to think of something, and asked, "Linglong, can you help me see what this is?" After saying this, Lu Chen's heart moved slightly, and a mist-shrouded, divine and majestic dragon gate suddenly appeared at the center of his eyebrows.

At the same time, he unplugged the gourd and poured a dark red spark from the purple gourd with a gentle pat. The dark red spark fell into the true qi cover in Lu Chen's palm, and the sound of sizzling continued, and a wisp of light smoke slowly rose up.

The Proverb of Fire was activated, and soon small sparks escaped from the dark red sparks like fireflies on a summer night, causing the dark red sparks to gradually turn into pale mortal fire. The little spark sank to the skin of his palm, and disappeared as soon as it touched the skin. Immediately, a heat flowed all the way up the meridians in his arm, and finally came to the center of his eyebrows and directly submerged into the sea of knowledge.

Gu Linglong glanced at it and said lightly: "This is the essence of fire. ”

"What is the essence of fire? Aren't the Nine Dragons Proverbs used to give birth to dragon qi, how could these essence of fire not enter my sea of consciousness?" Lu Chen asked.

"What's so strange about that. Gu Linglong glanced at Lu Chen and said, "It's just that you practiced the wrong exercises again." ”

Without waiting for Lu Chen to ask, Gu Linglong said slowly: "These small sparks that you use the Fire Proverb to peel off from the dark red Mars are the essence of fire, but you only know one and don't know the other, the Proverb of Fire can strip the essence of fire from some spiritual energy that contains the essence of fire, and then transform the essence of pure fire into dragon qi. You only know how to strip away the essence of fire, but you don't know how to use your own origin dragon crystal to refine the essence of fire and turn it into your own dragon qi. ”

Hearing this, Lu Chen was speechless for a while, and Gu Linglong said this. He suddenly remembered that when he first cultivated the Nine Dragons Proverbs, he had been unable to follow the path, and he had tried to use dragon qi to condense a sea of dragon qi in his dantian like a sea of qi in the same way as he cultivated the innate spiritual root. Later, if Gu Linglong hadn't woken up, where would he have thought that the cultivation of the Nine Dragons Proverbs would eventually be to condense the Origin Dragon Crystal in the sternum.

"But how could the essence of fire take the initiative to submerge into my sea of consciousness?" Lu Chen suddenly thought of something and asked again.

As soon as Lu Chen's words came out, Gu Linglong fell into deep thought. Seeing this, Lu Chen didn't dare to disturb, and waited quietly aside, after all, the Nine Dragons Proverb is a dragon clan exercise, and Gu Linglong has the most say in this regard.

After a while, Gu Linglong seemed to have figured out something, with a confident look in her eyes, she nodded slightly and said: "After all, the Nine Dragons Proverbs are a dragon clan exercise, but you are a human race, the human race and the dragon clan's physical body is completely different, and there will inevitably be some unexpected situations in the cultivation process......"

Speaking of this, Gu Linglong stopped talking and stopped talking.

"Linglong, what do you want to say?" Seeing this scene, Lu Chen was slightly surprised.

"Well, cultivating the exercises is your own business, and in your spare time, you have to carefully experience it yourself, and figure out how the dragon clan exercises can better fit with yourself. Gu Linglong said, slightly weak. In fact, there is another very important thing in her heart that she did not explain to Lu Chen, the Nine Dragons Proverbs are actually a new practice created by the ancestor of the Dragon Clan, and no one has ever practiced with the dragon so far, and Lu Chen is the first person to eat crabs.

After thinking for a while, Lu Chen asked again: "For a period of time, I secretly feel that if I can refine more fire essence and integrate it into the sea of knowledge, I will reveal the secret of the fire essence, and it seems that I can also get great benefits from it, why is this?"

"Knowing the sea is a combination of spirit and mind, which is more subtle than the physical body and much more fragile than the physical body. And the essence of fire has been integrated into the sea of consciousness, and you have been affected by the essence of fire, and you cannot make a correct judgment. Just like a crazy person will not believe that he is a madman, when the essence of fire has accumulated enough, your sea of consciousness will be burned and you will become an idiot completely. Gu Linglong said.

Hearing this, Lu Chen's brows couldn't help but jump, over the past period of time, as more and more fire essences have been integrated into the sea of knowledge, he feels more and more that after integrating more fire essences, he will reveal the secrets of fire essences, and he has not realized what it means to integrate more fire essences to himself.

"Whether the essence of fire actively merges into the sea of knowledge, or tries to use dragon qi to condense the sea of qi, this is the second time. In the future, regardless of the three-seven-twenty-one, the spiritual energy born from the operation of the Nine Dragons Proverbs will all be stuffed into the Origin Dragon Crystal, so that the cultivation of the Nine Dragons Proverbs will never go wrong again. Lu Chen said in his heart, secretly making up his mind.

"Try to refine the fire essence in the sea of consciousness, otherwise these fire essences will continue to affect your thinking and judgment. Gu Linglong said.

Hearing this, Lu Chen nodded, and said in his heart: "It's not a try, but you have to completely pull them out of the sea of knowledge!" If you don't pull out the essence of fire from your own sea of knowledge, it is equivalent to burying a * in the sea of knowledge, maybe one day these fire essences will affect your judgment and make you make crazy moves.

"You work hard to cultivate, and I will also refine the dragon qi drawn from your Origin Dragon Crystal. Seeing that Lu Chen was deep in thought, Gu Linglong said to herself, ignored Lu Chen after speaking, turned around and walked to the back hall, leaving the main hall for Lu Chen to use.

When he came back to his senses, seeing that Gu Linglong had already turned around and left, Lu Chen did not delay, and immediately ran the Nine Dragons Proverb, urging the Origin Dragon Crystal in the sternum.

Suddenly, points of flame light appeared from all over his sea of consciousness, and these points of flame light were all the essence of fire that he had previously stripped from the lower grade fire attribute spirit stones and dark red sparks. At this moment, the Origin Dragon Crystal was urged, coupled with the operation of the Nine Dragons Proverbs, an inexplicable traction force was born.

The essence of fire that had been integrated into the sea of consciousness without a trace appeared one after another under the effect of this traction, and seeing this scene, Lu Chen secretly breathed a sigh of relief. I'm most afraid that there will be no reaction, since the essence of fire has emerged one by one at this moment, it shows that it is still effective to urge the origin dragon crystal, and at the same time run the exercise method to absorb the essence of fire in the sea of knowledge.

At this moment, the Zhihai Dragon Gate is fully opened.

"Give me refining!" Lu Chen shouted in his heart, urging the Origin Dragon Crystal with all his might, while frantically running the Nine Dragons Proverbs.

The essence of fire flew out one after another from the ten acres of knowledge of the sea behind the dragon gate of the sea of knowledge, and soon a piece of the essence of fire appeared above his sea of knowledge, like an army of fireflies floating in the forest in the summer night. The essence of fire slowly flowed, escaping from his sea of knowledge dragon gate, like a river composed of flame points, flowing in the air, incomparably gorgeous.

After the river of light and flame composed of the essence of fire escaped from the Zhihai Dragon Gate, it slowly flowed towards Lu Chen's sternum, where the Origin Dragon Crystal was located.

Boom –

As the flame light points submerged into the Origin Dragon Crystal, under the operation and refining of the exercises, the dragon qi gradually became full of the Origin Dragon Crystal.

Since Lu Chen cultivated the Nine Dragons Proverbs, he had taken dragon qi from the barren stones, and did not use the Nine Dragons Proverbs to refine the aura of heaven and earth and give birth to the origin dragon qi. Although the dragon qi born from the essence of refining fire this time was not comparable to the amount of dragon qi drawn from the barren stone, it was not to be underestimated.

Could it be that the first part of the Nine Dragons Proverbs is more suitable for refining the heaven and earth spiritual energy of the fire attribute and turning it into its own dragon qi? While refining a little bit of the essence of fire into its own dragon qi, Lu Chen suddenly thought of this. And if you want to verify this, it's actually very simple, as long as you absorb and refine the aura of heaven and earth with other attributes, but at this moment, it is still important to pull out all the essence of fire from the sea of knowledge.