Jiaoyan Cave is located in the northern bay of Linghe City, which is a volcanic island shaped like a cone, small in scale, silent for thousands of years, and there is a small Tianchi with a radius of dozens of zhang on the top of the mountain.

In the past thousand years, this cave has been operated by the children of the Zhu family for half of the time, unlike the fickle Moon Spring Cave.

Zhu Lingyan has been preparing for the big exam in the past few years, and has collected a lot of written test questions for the big exam in previous years, and she invited Qin Xuan and Lan Ying to Jiaoyan Cave to provide some help.

Qin Xuan was quite grateful, he was also collecting old volumes, and the number he really got was not much.

He and Lan Ying answered the written test questions of Gengzi Year separately, because it was an old paper, with a full score of seventy, but he could only get about fifty points, and Lan Ying could maintain more than sixty points.

Zhu Lingyan smiled and answered their doubts and analyzed the mistakes one by one.

She really had the heart to help Qin Xuan hit the top ten, and she also hoped that when she entered the Immortal Secret Realm and the Divine Crane Valley in the future, she could help each other.

(The opening rule of the Immortal Secret Realm is that it will be opened three times every 1,000 years before the Great Tribulation, the first time will be opened in the Jiachen Year 700 years apart, and then it will be opened again every 100 years until the Demon Tribulation is over.) There is an old draft in the previous chapter, which has been omitted and has been corrected)

That's what she's about.

Lan Ying could only work her own, away from the two of them, occasionally listening to their enthusiastic conversations, feeling a little lost in her heart.

Early that morning, the sun shone into the scorched cave.

Qin Xuan memorized the scriptures all night, and it was inevitable that he was a little dizzy, but fortunately, the effect was outstanding, and he was able to maintain an average of 65 points per subject yesterday after testing ten years of old volumes.

It's only a week before and after.

In addition to the great help of Senior Sister Zhu Lingyan, he can only say that the cultivator's memory is too strong, and he will never forget it, and the only flaw is that he is easy to cling to demons.

Qin Xuan stretched her waist and was about to wake up Zhu Lingyan, who was dozing on the stone table, when the red copper bell on her waist rang continuously, waking her up, and she looked at Qin Xuan blankly.

"Senior sister, what's wrong?" Qin Xuan sensed something wrong.

"Alas, the catastrophe is coming, and the world is not at peace!" Zhu Lingyan sighed helplessly, and teased with a wry smile, "Senior Brother Qin, in the next two years, I'm afraid I have to go to your Yuequan Cave to practice, you are quite spacious there, you should be able to place a good position for Senior Sister, right?"

"Of course there is a location, the question is is there a difficulty here?" Qin Xuan was puzzled.

As soon as he finished speaking, the entire Jiaoyan Cave shook slightly, and a strong smell of sulfur came to his face.

"Oh!"

Qin Xuan roughly understood that this small volcano might erupt every thousand years, when it encountered a demon tribulation.

"Really, if you don't spray it in the morning, you don't spray it in the evening, and you can't wait until I move in to spray it, so you can't delay it for another four or five years. Zhu Ling muttered a few words angrily, rolled up his sleeves indignantly, revealing his hands as white as jade, "Don't care about the big exam first, hurry up and move." My father said that when the bell rings, the volcano will erupt in twelve hours. ”

"The two senior sisters moved the things in the cave, I'll go outside and take a look!" Qin Xuan thought of something and hurriedly left the Jiaoyan Cave.

Jiaoyan Mountain is not high, more than 100 zhang above the sea surface, more than 40 zhang below the sea surface, there are more stones and less soil on the mountain.

Qin Xuan walked out of the cave, and his spiritual sense spread to one hundred and fifty zhang, exactly one mile in a radius, and he traveled all the way, and soon found a few truly valuable spiritual grasses in the mountain rocks.

The spiritual soil around these spiritual grasses is more valuable, and it is indispensable for the medicine master, and it is a positive spiritual soil, which is rare.

As a pharmacist, the most thing on Qin Xuan's body was the Shifting Wood Tripod, which was most suitable for collecting spiritual soil, he walked around, putting every inch of spiritual soil into the Shifting Wood Tripod, and occasionally encountered one or two valuable spiritual grasses before moving them.

He didn't care about the rarity of the spirit grass itself, but more about their spirit seed level.

On Jiaoyan Mountain, the most common spirit herbs are Ling Xiao and Wu Teng, which are also the results of the Zhu family's successive generations of Xingchen Academy's disciples, but wherever they can grow spirit grass, they are there.

Qin Xuan walked all the way around the mountain, collecting more than ten tripods of spiritual soil and more than four hundred Lingxiao black vines, but these were not what he really wanted.

He's still looking.

A few days ago, he had heard a wonderful voice, it was a very spiritual plant shouting, and now that he thought about it, he realized that the other party had predicted that the volcano was about to erupt.

Oddly enough, it's not in the mountains.

Qin Xuan walked all the way to the bottom of the mountain, searched along the coast at the foot of the mountain, and finally found some traces with his sharper spiritual sense, there was a gap at the bottom of the cliff on the back side of the mountain that could barely pass through a person.

He got into it from here, but the gap narrowed and narrowed, but from time to time petite firesparrows flew out from the depths.

He had to use a seldom practiced bone reduction technique to shrink his body by 30%, and only then did he barely pass through a 100-zhang deep mountain crevice, and at the end was a crimson cave, only a few zhang in diameter.

A certain senior left the serpentine Luan dance on the top of the cave "Zhuya Cave" three words, behind which there is a row of small seals of "nebula extinguishes the sea, turns the sea into red rock, and fights for three thousand years, and finally I am immeasurable".

"Canghai?" Qin Xuan was slightly stunned, thinking of the sentence that the Wind Demon Sword asked Qiu Yaopo to relay, "The intersection of the two veins is related to the sea", he had already understood the former, but he had never been able to answer the true meaning of the latter.

In the center of the grotto, a nine-foot-high red jade bamboo is slim and elegant, exuding a rich red light and star mist, the whole body is crystal like fire, only the bamboo leaves are dark blue.

This is one of the jade bamboos, the texture is as hard as jade, the growth rate is extremely slow, each of which can only survive in the most unique places, and it cannot grow under slightly poor conditions, and it can also be said to be the most difficult to cultivate the spirit seed bamboo family.

There is also a still working formation in the Zhuya Cave, constantly absorbing the power of the fire veins in the depths of the mountain, cultivating this red jade bamboo, and at the same time isolating the spiritual sense.

Qin Xuan used his medicinal spirit expertise and found that the spirit seed level of this red jade bamboo was extremely high, only the purple mist bamboo he cultivated could be compared, and there was still a certain gap between the two Mulian Grandma.

The most amazing thing is that this bamboo already has a practice method, which is actually the Five Elements Method of Zhou Tian's Condensing Qigong One Vein, absorbing the fire vein and turning it into its own spiritual power.

The reason why it was able to shout and be heard by Qin Xuan was precisely because it was tragically at the critical moment of condensing the blood seed, and there was a slight trace of blood seed, but it was only the beginning of the step, and it was very imperfect.

Qin Xuan communicated with it for a moment with the medicinal spirit specialty, only to know that the time of the volcanic eruption was unexpectedly decades earlier, and it had no time to complete the condensation of the blood seed.

"Taoist, save. It had some faint stellarity, and had been silently shouting this for the past few days.

Qin Xuan stared and pondered, not knowing whether to make a move, his heart palace was sealed with Mu Xiu's forging spirit blood seed, which had never been refined, it was originally intended to be used to impact the star trial array, if it was used to push up this bamboo condensation blood seed, it would not be difficult.

After a long time, he gave up this idea.

This red jade bamboo is too delicate, even if it breaks through to become a demon, it will slowly wither once it leaves this place, and unless it can find a new place of fire veins, and it must be extremely hidden, it will bring more danger.

He comforted Chiyuzhu with the medicinal spirit specialty, first used the Shifting Wood Ding to collect all the red sand spiritual soil in the Zhuya Cave, and then completely moved it to the Dingzhong, and then used the Five Elements Gathering Spirit Talisman to arrange a small array, spending several hours absorbing the vast fire veins here.

This can give Chiyuzhu a period of time to survive, maybe three years, maybe half a year.

The tremor of the mountain became more and more intense, and Zhu Lingyan and Lan Ying had already left the Jiaoyan Cave and sat on the wooden crane waiting for Qin Xuan.

Sensing that the volcanic eruption was imminent, Qin Xuan flipped over his hand and took out a flying star shuttle, and with this flying magic weapon, he rushed into the air and landed on the back of the wooden crane.

Zhu Lingyan sat in front in a sad mood, staring in a daze with his pink peach cheeks in one hand, not in the mood to ask where Qin Xuan had gone just now.

By late afternoon, the small volcano had finally erupted.

At this moment, black smoke rushed into the sky, and the red-red hot magma rushed down the mountain and fell into the sea, stirring up a white mist in the sky.

Qin Xuan looked at the magnificent landscape in front of him, but what he thought in his heart was the sentence in the Zhuya Caves: "The nebula destroys the sea, the sea turns into red rock, and after another three thousand years, I will be immeasurable."

He had a feeling in his heart that he was getting closer to the truth of "the intersection of the two veins, which is related to the sea", and the scattered cultivator ancestor three hundred years ago was undoubtedly the earliest person to know, and only then did he have the Stone Garden and the Stone Scripture Cave.

There are countless down-and-out minor repairs in the world, but Mu Ancestor only chose the origin of the two ancestors of Qin Mu, leaving the three methods of stone garden, purple mist bamboo and marrow washing, as well as the source of all confusion and strife today in these eight words.

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