The Heaven Refining Technique in Ling Yunfeng's body was running rapidly, and all the martial qi in the sea of qi surged out, filling all the tendons and veins in his body.

Immediately, the palm attached to the medicine pod erupted, raising the temperature of the pale yellow flame to the maximum, and then controlling the martial qi flame to continuously calcinate the hundred forging cold steel within the flame.

As the blazing martial qi continued to be calcined, about half an hour later, the surface of the Hundred Forged Cold Stainless Steel within the flame began to appear a trace of fiery red, and this fiery red color continued to expand and spread towards the surface of the Hundred Forged Cold Steel.

The appearance of this fiery red color also indicates that the hundred forged cold steel in the flames has begun to be refined.

Seeing this, a smile appeared at the corner of Ling Yunfeng's mouth, and he breathed a sigh of relief, but he didn't dare to be too careless, and continued to carefully control the flames inside the medicine pod.

Time passed slowly, and after half an hour passed, under the continuous calcination of the martial qi flame, the whole piece of forged cold steel began to turn red, and there were faint signs of melting.

After another quarter of an hour or so, a trace of fiery red molten iron began to seep out of the surface of the hard Hundred Forging Cold Steel.

It didn't take long for the molten iron on the surface of the fiery red forged steel to seep more and more, like a rapidly shrinking grape.

As this trace of fiery red molten iron continued to seep out, about half an hour later, the entire piece of forged cold steel turned into a ball of red molten iron the size of a baby's skull, suspended in the raging pale yellow flames.

The molten iron boiled violently under the ferocity of the flames, and tumbled violently like boiling red oil in the pale yellow flames.

At this time, Ling Yunfeng's forehead was already covered with sweat, and his face was much paler, and a trace of sweat flowed down his pale cheeks, and finally dripped onto the ground.

The aura around his body also began to fluctuate a little, obviously with Ling Yunfeng's current strength, refining all this piece of Hundred Forged Cold Stainless Steel into molten iron would also make him consume a lot.

Wiping a handful of sweat from his face, Ling Yunfeng gritted his teeth, took a deep breath, reached out and grabbed the remaining refining materials and threw them into the medicine tripod, controlling the flames to refine these refining materials.

Ling Yunfeng didn't dare to stop and breathe, because as long as he stopped sending martial qi into the medicine tripod, the martial qi flame inside the medicine tripod would be extinguished instantly, and the molten iron inside the flame would solidify with it.

In this way, not to mention the re-refining of this cold steel, and the molten iron that solidifies again will also deteriorate, resulting in a decline in the quality of the equipment that is finally refined, so Ling Yunfeng can only endure the fatigue in his body to refine the flying sword at one time.

The pale yellow flames in the medicine pod were still burning unabated, and as the blazing flames continued to be calcined, it didn't take long for these refining materials that were devoured in the flames to begin to melt, oozing out a trace of silvery-white crystal liquid mixed with the fiery red molten iron of the hundred forged cold steel.

Time passed slowly, as the flames continued to calcinate, the refining materials in the flames were constantly refined, and when the last stream of crystalline silver liquid flowed into the fiery red molten iron, the original fiery red molten iron also turned silver.

Seeing this, Ling Yunfeng exhaled lightly, his handprints formed, and the soul power in his mind suddenly gushed out, suppressing the pool of silver molten iron in the pale yellow flames.

Originally, the liquid mixed with several liquids floated quietly in the flames, but when it was suppressed by Ling Yunfeng's soul power, it seemed to be like throwing a boulder into a calm lake, and it suddenly began to react violently.

Several liquids that had been fused together began to repel each other. Bursts of energy fluctuated from the liquid, and the energy hit the medicine pod, causing the pod to tremble.

Bursts of repulsive force continued to come out of the fiery silver liquid, and these repulsive forces hit the soul power that suppressed the silver liquid, which immediately caused the soul power in Ling Yunfeng's mind to be shocked for a while, and his mind was dizzy for a while, and his body was also surging with qi and blood.

Ling Yunfeng's face changed, he gritted his teeth fiercely, and forcibly suppressed the surging qi and blood in his body, and the soul power in his mind gushed out again, and the powerful soul power once again collapsed towards the silver liquid, suppressing the repulsion in the silver liquid in the most violent way.

After half a sound, under the suppression of Ling Yunfeng's majestic soul power, the violently churning liquid was almost suppressed, and several liquids began to merge evenly.

Seeing this, Ling Yunfeng breathed a heavy sigh of relief, and the heart that was in his throat was finally relaxed.

Fortunately, he almost suppressed the ** of the silver liquid, and if he let this liquid be repelled, then his previous efforts would be in vain.

Ling Yunfeng glanced at the medicine tripod in front of him with palpitations, although his soul power suppressed the repulsive force, but the energy fluctuations from the liquid still shook the medicine tripod slightly, but it was not as strong as just now.

The previous shock force was extremely huge, if it weren't for the barrier of the Nine Dragons Refining Heavenly Ding, I was afraid that if the aftermath of the energy that was oscillated from the liquid fell on his body, he would inevitably suffer a little injury.

Immediately, Ling Yunfeng slowly exhaled a few mouthfuls of turbid qi suppressed in his heart, and continued to carefully control his soul power to suppress the silver liquid, and at the same time, the martial qi flame also raised the temperature to the highest, constantly calcining the silver liquid in the flame, trying to expel the impurities in the silver liquid as much as possible.

I don't know how long it was, the silvery-white liquid inside the medicine pod was suppressed by Ling Yunfeng's soul power, and slowly formed a sword shape that was two inches wide and more than three feet long.

Immediately, Ling Yunfeng's soul power slowly retracted, and the flame temperature of the martial qi flame also decreased, and when the temperature dropped to a certain level, the sword-shaped liquid also slowly solidified, and finally condensed into a silver long sword more than three feet long.

Looking at the solidified sword-shaped liquid, Ling Yunfeng breathed a heavy sigh of relief, at this point, the refining of the flying sword had basically been completed by eighty percent, but the next steps should not be underestimated.

Looking at the three-foot silver sword floating and tumbling in the True Fire of the Origin, Ling Yunfeng bit his lip violently, spread out his left hand, and drew a few strange arcs in front of him, forming a mysterious handprint and striking forward, and then a white streamer suddenly burst out from the palm of his hand, rushing straight into the flames, and then merging into the sword body of the three-foot silver sword.

These streamers are a small Taoist formation that Ling Yunfeng has recently practiced, called the Wind Array, which is a necessary formation for refining flying swords.

Immediately after that, Ling Yunfeng's handprint was played again, and then several Taoist auxiliary small arrays turned into streamers and merged into the three-foot silver sword.

With the integration of several formations, the sword body of the three-foot silver sword, which was originally quietly suspended in flames, began to tremble and vibrate, and let out a "Buzz!" The sound of the sword.

Bursts of energy began to vibrate from the sword body, and wave after wave hit the inner wall of the medicine tripod like a Lang tide, shaking the medicine tripod for a while.

After half a sound, when the three-foot silver sword slowly stopped shaking, Ling Yunfeng's soul power suddenly retracted, and the flames in the medicine tripod lost control, and suddenly violently devoured the three-foot silver sword in the raging flames, but the ferocity of this flame did not last long, and the flames slowly subsided.

As Ling Yunfeng's palm was retracted as he attached it to the medicine tripod, the pale yellow flames suddenly dissipated in the medicine tripod and retracted his palm, Ling Yunfeng's arm waved slightly, and the three-foot-long silver sword suspended in the middle of the medicine tripod swept out quickly, and then fell into his hand.

Ling Yunfeng looked at the flying sword in his hand, and saw that the silver sword was three fingers wide and three feet long, and the whole body was silvery-white, but the surface of the silver sword was not very pure, the silver-white surface had many mottled black spots, and the surface of the sword body also had many uneven pits.

However, the corners of Ling Yunfeng's mouth couldn't help but show a smile, and he muttered, "I didn't expect that the first time I refined the flying sword, it was completed." It's not bad, although the quality is not high, but it's a success, and it can barely be used. ”

Immediately, Ling Yunfeng put away the Nine Dragons Refining Heaven Ding, briefly cleaned up the cave, and then walked out of the cave.

Standing at the entrance of the cave, Ling Yunfeng looked around, and then quickly swept towards the depths of the valley.

About a quarter of an hour later, Ling Yunfeng appeared under a rock wall in the valley, a flat meadow with a radius of several hundred meters, and this meadow was rare to appear in this valley.

Ling Yunfeng's gaze first glanced around, and found that there was no one around, so he smiled slightly and said, "This grass is quite wide, and it is not bad to practice flying swords." ”

Immediately, Ling Yunfeng glanced at the silver-white flying sword in his hand, smiled slightly, glanced upward, hesitated and threw the flying sword into the air, and at the same time, his hands changed rapidly, forming a seal, and then a white streamer was about to be punched into the flying sword.

"Buzz!"

With the white streamer entering, the flying sword suddenly vibrated and buzzed, swept straight up, and flew into the air but did not fall, but floated strangely in the air.

"It's amazing! Tsk! Lao Tzu has never tried to fly in the sky in his life!" Looking at the flying sword suspended in mid-air, Ling Yunfeng was secretly surprised, and said excitedly, the words fell, and his feet kicked the ground suddenly, and then his body rose upward, jumped into the air, and stepped on the body of the flying sword.

As Ling Yunfeng's body landed on the flying sword, the flying sword suddenly sank slowly, Ling Yunfeng hurriedly controlled the martial energy in his body and hurriedly lifted it, and the flying sword stabilized the downward trend and staggered in mid-air.

Maybe it was the first time for Ling Yunfeng to control the flying sword, and he couldn't get used to it for a while, so he stood on the flying sword and shook it a few times, and only after half a sound did he gradually balance down.

After his body was balanced, Ling Yunfeng took a few deep breaths, calmed down some of his excitement, slowly stretched out his hands, formed a jerky seal, lifted the sword technique, and manipulated the flying sword to slowly fly forward.