After a moment, a strange look appeared on Chen Yun's face. He took off the jade slip, looked at the woman surnamed Song, and asked in a slightly slower tone: "Where are they now? Can you take me there?"

"Uncle Chen actually knows my friend!" This time it was the Song woman's turn to be shocked.

"Yes, we do have some acquaintance. I never thought that Junior Brother Song also knew her." Chen Yun's expression remained calm, and he did not give a positive or negative answer.

"I have known this friend for the past two years. I originally thought that the good news I had passed on to you was just a joke. Unexpectedly, she actually confirmed it herself. Now, I have properly placed her in a deserted place outside the city. Please allow me to lead you there."

The woman surnamed Song was full of energy and smiled sweetly, showing her incredible charm.

Then, Chen Yun and the woman walked towards the city gate together. After leaving Tianyi City, under the guidance of the woman surnamed Song, they drove the light of escape and sped southward.

After a long journey of dozens of miles, they finally arrived at a remote and uninhabited valley.

At the entrance of the valley, there was a layer of milky white fog, and it was obvious that someone had cast a tiny trick here.

The woman surnamed Song waved her arm without hesitation, and a token was already in her hand.

As a red light shot into the white mist, the mist began to swirl and gradually became clearly visible, revealing an emerald green path.

……

A few days later, in a secret room with many restrictions in the Chengyun Sect's territory in Tianyi City, Chen Yun sat upright in the center of the secret room, his hands tightly grasping a huge sword about five to six feet long, his brows furrowed, as if he was thinking about some serious problem.

Two strange colored flames, white and green, ignited on the sword. These were the Shura Holy Fire that Chen Yun practiced and the mysterious green lamp flame.

In the next few days, Chen Yun was forced by Lu Luo to attend many gatherings of Nascent Soul cultivators who had close ties with the Luoyun Sect.

In the past, it was as difficult as ascending to heaven to meet a cultivator of this level.

However, now, in just a few days, Chen Yun has come into contact with more than a dozen Nascent Soul cultivators. This is undoubtedly a rare experience.

These monks had naturally heard of Chen Yun's great name, so they did not dare to slack off in the slightest and got along quite well with each other.

Chen Yun even had a pleasant conversation with several of the monks.

What kind of devil flame is this blue lamp flame? Its power is comparable to Chen Yun's Shura Holy Fire. Although Chen Yun has barely controlled it with the advantage of numbers, how to refine it is indeed a headache.

Chen Yun naturally could not tolerate this.

At this moment, his eyes flickered as he stared at the sword in front of him, after a long period of careful consideration.

After a moment, he threw the huge sword in his hand upwards, raised his wrist, and a green magic spell instantly hit the sword.

Then, the sword spun around above the secret room, making a buzzing sound, and then turned into dozens of tiny flying swords.

Chen Yun's mind moved, and most of the flying swords quickly transformed into dozens of green lights, shooting straight into his body. Only one flying sword slowly and steadily descended, and finally stopped in front of Chen Yun.

Chen Yun stared at the bluish-white flame on the sword, his eyes narrowed slightly, and suddenly opened his mouth. A white flame gushed out of his mouth, directly covering the surface of the flying sword.

In an instant, the white flame on the sword became extremely strong, suppressing the originally thin green flame in one fell swoop.

Then, under the urging of the magic formula in Chen Yun's hand, the hot white light drove the green flame towards the tip of the sword. Not long after, it compressed it to a point on the tip of the sword and turned it into a ball of green light the size of a soybean.

Seeing this situation, the expression on Chen Yun's face became even more solemn.

He took a deep breath, and the ten fingers of both hands kept jumping. Various colored spells hit the sword at an astonishing speed.

Suddenly, the white flame on the sword became more powerful under the stimulation of the magic formula, forming wave after wave of white flames, ruthlessly pressing towards the green light.

The green flame was swaying at the tip of the sword, as if it would disappear at any time.

However, under the continuous pressure of the white flame, after a period of time, the green light gradually became brighter and more dazzling.

No matter how the white flame is driven, it is like growing on the tip of the sword, always remaining in an eternal state.

A hint of anxiety flashed across Chen Yun's eyes, and the magic spell in his hand became faster.

Time passed slowly, but the situation did not improve at all, and Chen Yun's expression gradually became serious. After a short period of thinking, a cold light flashed in his eyes, and he stretched out his hand and waved lightly.

In an instant, his entire palm was enveloped by a layer of brilliant white flames.

Chen Yun stretched out his hand without reservation and resolutely grabbed the ball of green flame. His technique was precise and the green light was swallowed up by the white flame in his hand in an instant.

However, when he tried to grab the flame with his fingers, he felt a soft touch on his fingertips, and then a powerful force burst out from the flame, shaking his five fingers away.

Chen Yun couldn't help but be shocked, but he reacted immediately, grabbed with his backhand, and pressed the white flame in his hand downwards.

As the light continued to grow stronger, the blue flame was completely engulfed by the white light.

Chen Yun's arm did not move at all, and the white flames and green light between his five fingers intertwined with each other, flickering.

This process lasted for about a quarter of an hour. Chen Yun sighed softly, then casually shook his hands, spread his five fingers, and the white flames disappeared without a trace in an instant.

He stared at the green flame that was still gleaming with a crystal-like luster, and a helpless smile appeared on his face. The difficulty of controlling this mysterious flame was far beyond his previous imagination.

Although the Shura Holy Fire could compete with it, refining it seemed to be beyond his ability.

Thinking of this, Chen Yun pondered for a moment, raised his hand, and gently pointed at the flying sword in front of him.

Suddenly, a low thunder sounded, and a dazzling golden arc of light burst out from the flying sword. As soon as the arc appeared, it quickly exploded and turned into countless slender golden rays of light, pouring towards the green flame.

However, the expected thing happened. There was a flash of green light, and all the golden light disappeared like a drop in the ocean, being completely absorbed by the flames.

However, despite feeling unwell, Chen Yun still faced this dilemma without flinching. He quickly adjusted his state and used his flying sword skills at an astonishing speed, flashing green light and sending out more than ten sword energies containing powerful energy. These sword energies were like arrows that broke through the air, unstoppable.

Similar to the golden arc formed by the evil-repelling divine thunder, once these green sword qi touched the green lamp flame, they were immediately absorbed by it and disappeared into thin air. However, Chen Yun ignored this, and the spiritual power in his body continued to circulate, and the sword qi followed one after another, like a moth to a flame, fearlessly attacking the green flame.

As time went on, his mana was depleted at an increasingly faster rate.

Therefore, after absorbing a large amount of sword energy, Qingyan seemed to be nourished and became more vigorous.

Soon after, it turned into a dazzling blue fireball, burning fiercely in front of Chen Yun.

At this moment, more than one third of Chen Yun's mana has been consumed.

However, facing the huge fireball in front of him, instead of panicking, he showed a satisfied smile.

The sword energy in his hand stopped being released, and he waved at the flying sword in the fireball.

Then, he clasped his hands together, and with a flash of light, the flying sword disappeared from his hands.

At this time, Chen Yun turned his head to look at the green fireball in front of him. He lightly tapped it with his finger, and a ray of spiritual consciousness penetrated into it.

The green fireball trembled slightly and began to rotate slowly. The green light on it flickered, sometimes bright and sometimes dim.

Chen Yun frowned and urged with his mind.

The blue fireball began to shake violently, but after a while, it flew out several feet away with difficulty, twisting and turning all the way, appearing to be quite strenuous.

Seeing this situation, Chen Yun touched his chin and fell into deep thought.

The power of this blue flame is so strong that it would undoubtedly be a huge waste if we just give up using it.

Although at present he can still barely drive this flame because he has absorbed a large amount of Qingyuan sword energy.

However, due to the limitations of his skills, he was simply unable to control it as he wished.

After all, this fire was not made by him personally, so it is difficult to use it as freely as the Qianlan Ice Flame and the Shura Holy Fire.

Chen Yun frowned, staring at the blue fireball, thinking about a solution. Suddenly, he reached out and pressed the storage bag on his waist.

A white light flashed, and a small piece of rib as white as jade and a light yellow bottle appeared in his hands at the same time.

This is the jade slip that records the Xuanyin Sutra and the magic weapon he once used to absorb the spirits of monsters.

He uncorked the bottle and a cloud of black gas came out.

Chen Yun grabbed the black air in the void with his five fingers, and the black air instantly condensed on his palm. Then he moved his mind, and this ball of ghost energy immediately jumped onto the ribs on his other palm.

Suddenly, the ribs turned from white to black, escaped from his control, and floated in the air, emitting a faint cold light.

Seeing this, Chen Yun immersed his spiritual consciousness in it, quickly reading the relevant content of the Xuanyin Sutra, searching for the answer at a glance.

"Yin Fire Thunder", at first glance, its name is not fascinating and quite inconspicuous. However, in fact, the position it occupies in the "Xuan Yin Sutra" is almost as important as Tiandu Corpse Fire.

It is undeniable that this is not some mysterious magic weapon like some forbidden magic, but a precious secret recipe for refining thunder beads. It is similar to the "Heavenly Thunder Bead" that Chen Yun once obtained.

According to the Xuan Yin Sutra, once the Yin Fire Thunder is successfully refined, its power is jaw-dropping. In terms of destructive power alone, it even surpasses the power of the Tiandu Corpse Fire.

Its operating principle is to compress a large amount of pure Xuanyin Dafa Yin Fire into one, and integrate part of the power of thunder and lightning, as well as various other materials, and stabilize it through specific techniques.

During battle, one only needs to sacrifice this item to detonate the Yin Fire and lightning contained in it, causing huge damage.

Unfortunately, thunder beads are disposable consumables with many restrictions. The refining process is cumbersome and the success rate is low. Only practitioners who can control thunder-attributed spiritual power can attempt to refine them.

Therefore, even top masters like Old Monster Jiyin and Master Xuangu have never tried to refine such items.

When Chen Yun first came into contact with the method of refining Yin Fire Thunder, he did not pay much attention to it. Although he could control the evil-repelling divine thunder, he knew very little about the Xuanyin method, so he naturally skimmed over it. He only practiced a few easy-to-master secret techniques such as Yin Demon Slash in the Xuanyin Sutra.

Now, when he was faced with the green flame that was difficult to collect and impossible to get rid of, he suddenly remembered the secret method of refining Yin Fire Thunder.

Refining Yin Fire Thunder consumes a lot of spiritual energy, and the probability of success is very small. In addition, there are very few practitioners who can control thunder and lightning. Therefore, few people in the world of immortal cultivation try to refine this thing. Even if there are occasional people who succeed in refining it, because it is a consumable, it is often consumed in a short time.

Although Chen Yun has not yet mastered the Xuanyin Method, with his current knowledge and cultivation, he does not need to completely follow the records of the Xuanyin Sutra.

With just a slight adjustment to the thunder bead refining method, other types of thunder beads can also be refined using the existing green flames, thus making the best use of everything.

After all, the power of the blue flame is in no way inferior to the Shura Holy Fire, and the power of the refined thunder bead must be no less powerful than the original version of the Yin Fire Thunder.

In the past, he had thought of using the dry blue ice flame or even the Shura Holy Fire to refine the lightning beads, but given the scarcity of these two spiritual flames, even if they were used in actual combat, they would be stretched to the limit, so he really didn't dare to waste them on refining the lightning beads. This idea only flashed through his mind, and he didn't think it through.

At this moment, faced with the green flame that cannot be collected or gotten rid of, refining it into thunder beads is undoubtedly an extremely ingenious solution.

In this way, in the upcoming war, this item will surely become a sharp weapon for him to fight against the enemy.

With a plan in mind, Chen Yun immediately began to search for what he needed in his storage bag.

As for the materials needed to refine the lightning beads, he could indeed gather them from his own reserves. These materials were not rare, they were all common and necessary items in the process of refining pills or tools. Chen Yun had already made some preparations.

So, he took out the things he needed one by one and arranged them neatly in front of him. Then, facing the flickering fireball, he waved his hands with a solemn expression.

Along with a roar, two golden arcs of electricity shot out from the palm of his hand at the same time, heading straight for the blue fireball.

In front of him stood several Luoyun Sect disciples who had already formed the Dan Yuan realm, including the old man from Redwood and the girl surnamed Song. Although they looked a little anxious, they still stood guard firmly.

Lu Luo, who was calm by nature, suddenly asked: "Master Duan, may I ask if Master Chen of your sect has been in seclusion for a long time?" (End of this chapter)