Xin Yan had long been planning to build a set of flying swords for Nangong Yunshan and the twenty-four maids under him to enhance their combat power.

It's just that I couldn't find the right materials, so I had to give up.

When he found the veins of Xuanbing Qingyu in the mine, he couldn't help but be ecstatic, weren't these Xuanbing Qingyu the best materials to build into the Cold Star Sword Array?

He planned to use the fourth-grade Xuanbing green jade as the main material, supplemented by twenty-three rare materials such as Gengjin, Secret Silver, Tianfeng Sea Sand, and Cold Star Stone, which could be refined into twenty-four four-grade Cold Star Sword, and with the Bright Moon Divine Sword in Nangong Yunshan's hand, it could form a Cold Star Shining Moon Sword Array.

Xin Yan took out the materials of various refining tools and placed them in front of him in the same way. Finally, all the preparations are made and the sword refining can begin.

Xin Yan stood in front of a four-legged dragon pattern bronze tripod, closed his eyes and pondered. This bronze tripod is half a person high, the dragon rune engraved on the body of the tripod is extremely exquisite, and the nine dragons are vivid and realistic, like a living thing.

The Xuanbing green jade attribute is cold and cold, and it must be slowly refined with cold fire. In order to refine them, Xin Yan specially bought this fourth-grade top-level Ice Nine Cockroach Refining Furnace from the Aoki Trading House.

After a long time, he suddenly opened his eyes, took a deep breath, and activated the talisman array of the refining furnace with a wave of his hand, and soon a blue and white flame rose from the ground, and a cold air hit the bone, and the temperature in the entire refining room did not rise but fell, becoming as cold as an ice cellar.

As Xin Yan continued to inject spiritual power into the Ice Nine Furnace Refining Furnace, the flames in the refining furnace began to become more and more pure, and finally took on a pure blue color. And the chill in the refining room was getting heavier and heavier, and even if he was as strong as Xin Yan, he had to take a few steps back to avoid being attacked by the cold flames.

Xin Yan took out a fist-sized piece of Xuanbing blue jade ore, and with a movement of his fingers, the emerald jade ore flew into the refining furnace and suspended above the blue-blue flames.

Xin Yan urged the spiritual power again, and the flames in the refining furnace suddenly rose, wrapping the Xuanbing green jade ore and slowly refining it.

Finally, the Xuanbing green jade ore began to melt little by little, and a terrifying icy aura spread around, making his bloodline and spiritual power almost stagnate.

"What a terrible cold breath!"

Xin Yan was secretly surprised in his heart, but a trace of excitement flashed in his eyes.

These Xuanbing green jades are so powerful before they have been condensed into sword embryos, and after they are refined, won't their power be even more terrifying.

As soon as he thought of this, his heart became happy, and while running the "Golden Refining Fragments" to dissolve the cold qi that invaded his body, he also injected spiritual power to urge the flames in the Cold Ice Nine Refining Furnace to refine the Xuanbing Qingyu ore.

Finally, after half an hour, the ore of this Xuanbing blue jade fossilized into a cyan, translucent liquid, which was extremely pure, and the cold aura emitted was several times stronger than that of the original ore.

After completing the refining of the Xuanbing Green Jade, Xin Yan added twenty-three rare materials such as Gengjin, Mystic Silver, Tianfeng Sea Sand, and Cold Star Stone to it one by one.

He urged the flames in the furnace again until the material was completely refined and merged with the Xuanbing Jade......

With a finger of Xin Yan's finger, a cloud of cyan translucent liquid flew out of the refining furnace, and fell into a sword-shaped jade box engraved with exquisite runes with incomparable accuracy, and quickly condensed into the appearance of a flying sword. This is the sword embryo of the Cold Star Sword that he wants to refine.

After Xin Yan refined the sword embryo of the first Cold Star Sword, he didn't care about resting, and took out another piece of Xuanbing blue jade ore of the same size and began to refine it.

......

Finally, after three days and three nights of sleepless hard work, he finally refined the sword embryo of the twenty-four Cold Star Swords.

Even if he was as strong as Xin Yan, he felt a little unbearable, so he had to stop and breathe to recuperate.

After half a day of pranayama, coupled with the assistance of the elixir, Xin Yan once again returned to his peak state, and he decided to start refining these twenty-four Cold Star Flying Swords.

Xin Yan pointed a finger, and twenty-four sword embryos flew up at the same time, suspended in mid-air.

To refine the twenty-four Cold Star Flying Swords into a sword array, different from the sacrificial single-mouthed flying swords, it is necessary to engrave the rune array on all the sword embryos at the same time, and only in this way can the twenty-four sword embryos be refined into a seamless one, attacking and defending freely, and manipulating the flying sword sword formation at will.

But to engrave the rune array on so many flying swords at the same time was a great challenge for Xin Yan.

"Fight your sister!"

Xin Yan took a deep breath, and a wisp of divine soul fire was summoned, condensed in his fingertips.

Suddenly, with a movement of his fingers, the fire of his divine soul turned into twenty-four extremely thin lines of fire, and at the same time it was submerged into the twenty-four sword embryos, all of which trembled in unison, and at the same time a dazzling cyan light lit up.

Xin Yan's ten fingers danced rapidly, his fingertips danced brilliantly, and the twenty-four sword embryos hovering in the air were intertwined with the lines of light around his body, like a rainbow and dazzling.

"The Law of Heart Fire Engraving!"

When the red demon saw this scene, he couldn't help but be stunned. He was well-informed, and he could see at a glance that what Xin Yan used was the long-lost method of the Heart Fire Talisman. He muttered to himself, "I didn't expect the kid to have this hand." ”

Xin Yan concentrated his concentration, staring at the twenty-four sword embryos floating in the air with wide eyes, his fingers blooming like flowers, controlling the line of fire, carefully drawing each fine rune, and gradually his forehead was covered with fine beads of sweat, but he didn't realize it.

Time passed little by little, and the rune array was completed little by little, Xin Yan felt tired, but he didn't dare to relax a little. The engraving array is all about one go, and any slight mistake will cause the engraving array to fail.

Xin Yan's dancing and blooming ten fingers became faster and faster, and the patterns intertwined by the fire threads on the twenty-four sword embryos were overflowing and exquisite!

The red demon's face was full of surprise, he didn't expect Xin Yan's refining weapon skills to reach such a point. He came from a well-known family and knew a lot, so he understood that the drawing of the talisman array had reached a critical moment.

Sure enough, Xin Yan's whole body began to dance wildly with a strange melody, his mouth was full of words, his fingers moved like the wind when he waved his hands, and a trace of fine fire light formed a brilliant lightsaber on the twenty-four sword embryos.

Xin Yan danced faster and faster, his hands waved rapidly, his fingers waved rapidly, bringing out an afterimage, and the magic light was continuously thrown into the sword embryos in the fire, and these sword embryos began to shake violently.

"Phew!"

Suddenly, Xin Yan shouted, he gathered the strength of his whole body, waved his hands violently, and shot out twenty-four red lights, when the red light touched the twenty-four sword embryos, and finally at the same time "Zheng" a hiss, and the light on the twenty-four flying swords skyrocketed at the same time!

Airplanes!

All the flying swords began to tremble violently, like a group of falcons eager to test their wings in the sky, trying to break free from Xin Yan's control.

Xin Yan stared at these twenty-four flying swords, a trace of frenzy flashed in his eyes, this set of flying swords has not yet been refined to have such a might, after being tempered by Xuanshui, won't the power of this sword be greatly increased?

"What are you still doing in a daze? Quickly activate the Xuanshui Seven Evil Array and refine the flying sword!" Xin Yan was still stunned, and suddenly heard the urging voice of the red demon.

Xin Yan came back to his senses at this time, and he used all his divine consciousness to firmly control the twenty-four flying swords and throw them into the Xuanshui.

"Wow!"

Twenty-four flying swords burrowed into the Xuanshui together, stirring up a burst of white mist, and all the flying swords suddenly gave birth to a powerful fluctuation, which shook Xin Yan's qi and blood surged, and he almost lost control of these flying swords.

"Hurry!"

Xin Yan forcibly suppressed the blood surging in his chest, and with a sudden wave of his hands, he struck out the last magic trick, and the light accurately sank into the twenty-four flying swords.

Eventually, the swords fell silent.

When Xin Yan took these flying swords out of the Xuanshui, all the brilliance on the flying swords was completely hidden, but a cold cyan brilliance appeared on the sword.

As soon as Xin Yan's mind moved, twenty-four flying swords floated in the air together, all the flying swords seemed to have an invisible connection with each other, he reached out and lightly touched one of the flying swords, and the other flying swords also moved, all the flying swords flew up and down, entangled with each other, but they always formed a twenty-four cold star sword array, which was extremely wonderful.

......

Just when Xin Yan was complacent about refining the Twenty-Four Cold Star Flying Sword, the Fu Zhan watchtower of the Demon Wind Haikou on the opposite side was also close to completion. All the Demon Wind Sea Kou were elated, and in their eyes, Shuinan Lingyuan was like a ripe fruit, just waiting for them to pick it.

All the cultivators of Shuinan Lingyuan felt a heavy pressure, and even Nangong Yunshan couldn't help but feel a little anxious.

She cleared the ban more than anyone else, and once the other party's Fu Zhan watchtower was completed, Shuinan Lingyuan would be in a desperate situation.

The only way to turn the situation around and regain the initiative on the battlefield is to destroy the opponent's watchtowers.

However, the Demon Wind Sea Bandits also knew the importance of Fu Zhan's watchtowers, and they arranged several elite warplanes around these watchtowers to strictly defend them, and there was no chance to take advantage of them at all.

If you launch a surprise attack rashly, it is very likely that you will be surrounded by the other party before you get close to the watchtower.

Neither the assault nor the defense were likely to succeed.

Nangong Yunshan thought hard, but she couldn't think of a way to defeat the enemy. She couldn't help but think that maybe only a guy like Xin Yan who didn't play cards according to common sense had the ability to turn the situation around. But at this critical moment, Xin Yan acted as the shopkeeper, went into the secret room, and ignored everything, which couldn't help but make her a little angry.

"You evil spirit, why haven't you come out yet?"

Just when Nangong Yunshan decided to gather the twenty-four maids and prepare to risk launching a surprise attack, Xin Yan suddenly came out, he looked at Nangong Yunshan, and asked with a smile: "Who is the evil spirit?"

When Nangong Yunshan saw Xin Yan, she couldn't help but be happy, but when she saw Xin Yan's hippie smile, her face froze, and she said, "You harmful spirit, when is it, do you have the heart to laugh?"

Xin Yan smiled: "Isn't it just a few watchtowers, let's just sweep him away." Nangong Yunshan asked excitedly: "Do you have a way to knock down the watchtower?"

Xin Yan looked indifferent and said, "Actually, I have already thought of a way. However, I see that the enthusiasm of the demon wind bandits to build the watchtower is so high, if we knock down the watchtower early in the morning, it will be bad!"