Spirit Fire Refiner? Fire Evil Container!

Yunxiao did not offer sacrifices to the North Pole Yuan Seal, so there was no North Pole Yuan Light in his body.

However, Yunxiao still decided to comprehend the magical power of integrating the North Pole Yuan Light into his own magic power. Although it took a little longer, he would be able to master it smoothly once he had the North Pole Yuan Crystal.

After seven half-year-long North Nights, Ruyin successfully comprehended the Ice Soul Cold Heaven and Earth Array.

Yunxiao also followed to learn, but this Ice Soul Cold Heaven and Earth Array could only be arranged in the ice and snow, and the location was extremely limited.

Ruyin just made a plan to repair the Heaven and Earth Array and the Xiaoji Palace Guarding Array, handed it to Palace Master Ye, and then followed Ruyin to leave Xiaoji Palace.

Ruyin accidentally heard the conversation between Palace Master Ye and his disciples. Palace Master Ye got detailed information about the two-headed black dragon, including the realm of cultivation, magical means and hiding place.

But he was unwilling to tell Yunxiao and Ruyin.

Palace Master Ye used this information to hang Yunxiao and let Yunxiao guard Xiaoji Palace for a hundred years.

Similarly, not only should Ruyin repair the palace-protecting formation of Xiaoji Palace, but also the Ice Soul Frost Heaven and Earth formation outside should be arranged intact.

Yunxiao took advantage of Ruyin's comprehensive inspection of Xiaoji Palace's formation and mastered the palace-protecting formation of Xiaoji Palace to sneak into the secret vault of Xiaoji Palace.

Not only did he take away all the materials in the secret vault, but he also found the jade slip that recorded the detailed information of the two-headed black dragon.

What made Yunxiao most satisfied was the ten bottles of cold marrow.

This is the product of Beiye Xiaoji Palace, which cannot be found anywhere else.

Moreover, to refine the imitation Lingbao Qianlan Ding, ninety drops of cold marrow are needed, that is, nine bottles of cold marrow.

It was not until a few days after Yunxiao and Ruyin left that Palace Master Ye discovered that the secret vault had been stolen and Xiaoji Palace suffered heavy losses.

Although Palace Master Ye knew that Yunxiao was going to hunt a level 10 monster, and the theft of the secret vault must have been done by Yunxiao, he did not dare to chase him.

Yunxiao is a late-stage Nascent Soul cultivator, while he is only in the middle stage of the Nascent Soul. He has no formation to rely on, and he has no chance of winning a war with Yunxiao.

Ruyin persuaded Yunxiao to give up hunting the two-headed black dragon to avoid getting hurt.

Yunxiao, in turn, persuaded Ruyin to directly seize the body and cultivate again, so that she would not have to hunt the tenth-level monster.

Ruyin naturally disagreed, but she kept emphasizing to Yunxiao that what she wanted was to live a good life and accompany Yunxiao well.

On this point, neither Yunxiao nor Ruyin could convince the other.

Yunxiao continued to go to the hiding place of the two-headed black dragon, while Ruyin continued to accompany Yunxiao, persuading Yunxiao to give up hunting monsters from time to time.

According to the intelligence, the two-headed black dragon is a tenth-level water-attributed monster, which was successfully advanced more than a hundred years after Bingfeng left the Ice Sea.

The speed of action is extremely amazing, especially the innate magical power of water escape, which has been cultivated to the point comparable to teleportation.

After the two-headed black dragon transformed into a human, it refined its own life sword based on its own spine.

Moreover, he learned a set of exquisite swordsmanship from nowhere, and the demon clan respectfully called him the Sword-Spine Dragon King.

In addition, it is said that the Sword-Spine Dragon King is born with a strange appearance, and his two heads can spit venom. Once the cultivators below the Nascent Soul Stage are touched, their muscles will disappear immediately, and it has the function of melting flesh and tendons.

Even the Nascent Soul cultivators have to avoid its sharp edge.

The Sword-Spine Dragon King has a huge body, with dark brown diamond scales on its back, and its defense is amazing. Even the attack of the peak cultivators in the late Nascent Soul stage cannot break the defense of the scales.

However, the white scales on the dragon king's abdomen have a slightly worse defense ability.

This is slightly worse, just slightly worse than the black scales on the back, and ordinary late Nascent Soul attacks still pose no threat.

According to the characteristics of the Sword-Spine Dragon King, Yunxiao and Ruyin formulated a detailed battle plan.

In the end, Yunxiao still slept with Ruyin.

Yunxiao took the lead in taking action, luring the two-headed black dragon out of his hiding place, and tried to hold it.

Ruyin sneaked outside the cave of the Sword Ridge Dragon King and set up a triple-layer restriction on its way back.

If Yunxiao could kill the Sword Ridge Dragon King directly, it would be better.

If he failed to kill it and let the Sword Ridge Dragon King escape, then the formation set up by Ruyin would work.

Although it was relatively crude, it was the best way Yunxiao could think of.

More than ten miles away from the Sword Ridge Demon King, Yunxiao put Ruyin down and asked her to hide first, and then he went alone to lead away the two-headed black dragon.

Three or four miles away from the Demon King's residence, Yunxiao took out the Thunder Ding Fire Bow and released his spiritual sense to scan the entire area at will.

He also shot a few arrows near the Demon King's residence from time to time.

As the new Lord of the Ice Sea, he lived alone in the palace, and hundreds of miles around were his "backyard". No one dared to come and provoke him so unscrupulously.

The furious Sword Ridge Demon King flew out directly and rushed towards Yunxiao.

He vowed to kill and chop up this "rat" that disturbed his cultivation.

Yunxiao sensed the movement of the two-headed black dragon and began to fly away.

And he flew while shooting a few arrows.

The Sword-Spine Demon King thought Yunxiao was going to leave, but who would have thought that Yunxiao would circle back as soon as the demon king stopped, looking like a cultivator who continued to search for treasures.

After the Sword-Spine Demon King, who had transformed into a human form, sensed Yunxiao's strength, although he was full of anger in his heart, he did not act blindly.

Instead, he went straight to meet him.

"This is Wu's cave. As a great cultivator of the human race, what are you doing in my Ice Sea?"

"I was instructed by someone to come here to find a precious medicine to treat injuries."

"What precious medicine is it?" The Sword-Spine Demon King saw that Yunxiao was really looking for something, so he asked.

"The thousand-year-old companion demon grass nourished by the essence and blood of the tenth-level demon king, I wonder if Wu Daoyou can give it up?"

"The thousand-year-old demon-companion grass, which is nourished by the essence and blood of the demon king, is not available. Daoist friend, you should look for it somewhere else."

"If it were a normal day, Qi could certainly search everywhere. But my condition has worsened recently, so I have to come here to look for it."

"I heard that the demon king's residence must have demon-companion grass. Why is Daoist friend Wu so stingy? Qi is willing to exchange it with fine ancient treasures."

"Wu does not have the thousand-year-old demon-companion grass. If Daoist friend does not believe it, Wu can only send you away by force."

"The person who instructed Qi to come here has confirmed that Daoist friend Wu has the thousand-year-old demon-companion grass in his cave. Qi does not want much, but only a spiritual grass nourished by Daoist friend's essence and blood. I hope Daoist friend agrees."

"You, a cultivator, have a lot of words. I tell you that there is no such thing. Wu has a bad temper. If you don't leave now, you will not be able to drink and drink a penalty wine."

When Yunxiao heard that he could not drink and drink a penalty wine, he slowed down for a while and realized that he would drink a penalty wine if he did not drink a toast.

It seems that the Sword Spine Demon King is not only powerful, but also has a good understanding of the culture of human cultivators. He is comparable to a well-known dog demon captain, Black Vine.

The reason why Yunxiao said so much to the two-headed black dragon was to make it think that Yunxiao was a talkative person, so that it could delay time when fighting later.

"I heard that fellow Daoist has excellent swordsmanship, and Qi is willing to give it a try."

"If Qi is lucky enough to win a move, I hope fellow Daoist Wu will reward me with a thousand-year-old demon grass, how about it?"

"You are talking about rewards before the battle begins, you little mouse, you actually underestimate me, watch out for the sword!"

After the Sword Spine Demon King finished speaking, a long sword appeared from his back and he attacked Yunxiao.