The four of them flew for half a day, crossed most of the land, and came to the border Boundless City in the west, which was close to the Demon Temple's sphere of influence.

It doesn't belong to any force, it doesn't distinguish between good and evil, and all the people gathered are the scattered cultivators of the human race and the demon race.

In fact, the Boundless City is the territory of the Nine Heavens Sword Saint, and he is also an elder of the Demon Palace, and his ability to reach the Holy Realm depends on the special nature of the Boundless City, allowing him to collect 100,000 babies and refine the Divine Infants.

The four of them came here, attracting a lot of people to peep.

Long Xuanbing showed a wary look, and Ye Muchen said: "That's it here, all the people who are born will be concerned, if they have no ability, it is common for them to be robbed lightly, and to be caught to dig out the inner pill for cultivation in a serious way."

However, people here will first determine the strength and identity background of the target before they start, otherwise they will not act rashly, which is already the public rule of the Boundless City. ”

"That means there's nothing to pity if people die here." Jiang Yuan looked at the people on the side of the road with strong interest, which startled these peeping people, and quickly turned his head not to look.

It's normal for some old devils or demon kings to come to the Boundless City, and it's not uncommon for these people to be killed while peeping at others, so people here are much more cautious than outsiders.

"Of course." Ye Muchen smiled, he had already guessed Jiang Yuan's thoughts, this guy in the book had set up a large array in the Boundless City, and refined the entire city and the Nine Heavens Sword Saint into a pill together.

Led them to a deserted manor in the city, he pushed the door open and entered, the front yard was full of weeds, and many bones could be seen among the grass.

In the main hall there is a blackened furnace, exuding a heavy resentment and evil aura.

Long Xuanbing frowned and said, "How many living people have been refined in this Ding Furnace, and there is such a terrible resentment. ”

"This is a treasure tripod deliberately placed by the Nine Heavens Sword Saint, that is, to let the people in the city put the captured people in it to refine. Since the founding of the city, there have been countless people refining this Ding Furnace.

Under the influence of resentment, this furnace will sooner or later become an extremely terrifying magic weapon. Once successful, this Ding Furnace can even be refined by the powerhouses of the Holy Realm. Ye Muchen introduced, bypassing the main hall, he could feel the terrible resentment affecting him.

If you are an ordinary person, just by taking a look at this Ding furnace, you will lose your mind and put the people around you into it for alchemy, even if you can't do alchemy, you will throw people in it and burn them alive.

Feeling such a terrifying aura, Long Xuanbing took out the Binglin Ancient Halberd to destroy this Ding Furnace, but Ye Muchen stopped him and said, "The Nine Heavens Sword Saint has set up a formation here, if he destroys it, he will know."

Now that he is using his identity as the Supreme Elder of the Nine Heavens Hall to destroy the East Sea Demon Palace, he will definitely go back to the sect to heal. There's no one here for now, and we're stealing his treasure. ”

Long Xuan Bing snorted and put away the Binglin Ancient Halberd.

Coming to the apse, Ye Muchen knocked on the stone pillar here, the stone door at the corner of the wall opened, and the formation at the entrance was also closed.

If you don't know how to open it, forcibly entering it will activate the formation inside.

He took the lead and said as he walked down: "Follow my footsteps, the entire passage here is a combination of formations and mechanisms, and taking a wrong step will trigger the formation."

This guy is very cautious, combining the mechanism of ordinary people with the formation of cultivators, and the cultivators have always scoffed at the mechanism of ordinary people, and almost no one learns it, so very few monks understand the mechanism.

And ordinary people must not understand the formation, so it is almost impossible to enter without knowing it. ”

After walking through the passage and entering the underground secret room, I saw that there was also a red Dan furnace here, with formation runes on it, and blue light was emitted from it, and there were faint red flames calcining the things inside.

Jiu'er and Long Xuanbing were very sensitive to the Demon Pill, even through the Dan Furnace, they could sense the breath of the Demon Saint Neidan inside, and they both showed excited expressions.

Jiang Yuan smelled the Dan Qi, and said with a wicked smile: "Ye Muchen, I found that your ability is really cool, this Yuan Kun Demon Saint's Inner Dan, after the dual Dan fire tempering of the righteous path and the demon path, is almost successful, well, if you add two demon king demon pills that meet the attributes, this can be completed." ”

"What attributes do you want?" Jiu'er immediately asked, this time they got a lot of demon pills in the Ancient Demon Palace.

"Hehe, water system, no wonder the Nine Heavens Sword Saint wants to personally attack the East Sea Demon Palace, he is here for this thing. Let's get together five water-based demon pills and ask for the demon king. ”

Jiang Yuan looked at everyone, and everyone immediately took it out and easily made up five.

"Brother Ye, you have completely opened up the Taiyin Star Vein, you can condense the Taiyin True Fire, I have opened up the Sun Star Vein, let's use the two True Flames together to add a force, and we will soon be able to refine the Yuan Kun Demon Saint Neidan into the Yuan Kun Divine Pill." Jiang Yuan said excitedly.

Ye Muchen was a little embarrassed, he had mastered the Xinghuo, but the Taiyin True Fire hadn't been practiced yet, if it was wrong, it would be a big problem.

Raise your hand and try to use the way of condensing the spark to condense the Taiyin true fire, but fortunately, it succeeded at one time, after all, it is the same as the spark, but the nature of the Taiyin true fire is completely different, and the control is not very stable.

Jiang Yuan laughed when he saw it and said, "Sure enough, your talent in this area is far behind, come, brother will teach you." ”

Ye Muchen was speechless, did he laugh at this time, if the Nine Heavens Sword Saint came back early, they would be miserable.

"We are jealous of your ability to be an unpredictable prophet, and now that I see you like this, my heart is still relatively balanced." Jiang Yuan joked, causing Ye Muchen to roll his eyes.

Even Jiu'er smiled and looked at Ye Muchen with a mocking look.

Long Xuanbing sighed, I was really convinced that Jiang Yuan still had the heart to joke at this time, but there was also a hint of a smile on his face, and the sadness of his father's death could be regarded as a little diluted.

After Jiang Yuan taught him the method of micro-control, Ye Muchen made the Taiyin True Fire stable.

This micro-control method was obtained by Jiang Yuan in his previous adventures, and the control of all energy achieved a micro-control effect, which made the energy not wasted, and it was not easy to go berserk.

After learning, the two of them sat on both sides of the Dan furnace, one released the Sun True Fire, and the other released the Taiyin True Fire, combining the two good and evil Dan fires inside to quench the Demon Saint Neidan.

Long Xuanbing and Jiu'er threw the five water system inner pills into it, and then stood by to protect them.

After the Taiyin True Fire and the Sun True Fire rushed into the Dan Furnace, they blended with each other, but instead of wrapping the Yuan Kun Demon Pill, they circled around, forming the shape of a Yin and Yang fish, surrounding the Yuan Kun, and at the same time helping to refine the five Water Demon King Inner Dan they threw in.

Below the demon pill, there are two kinds of Dan fire, good and evil, and the two true fires of Sun and Taiyin are the most important auxiliary two kinds of Dan fire, after all, this demon pill has been smelted by the good and evil Dan fire and is about to succeed, so they naturally dare not rush into it.

As the energy of the five demon pills was refined, it was integrated into the middle Yuan Kun Demon Pill, and the various medicinal materials that had already been put in it changed into liquids, and then all of them were vaporized, and finally condensed into five light blue pills.

These five pills were crystal clear like blue crystals, exuding a charming luster.

Jiang Yuan opened the alchemy furnace and immediately wafted out a refreshing aroma, with a majestic and rich water energy.

With a gentle push, the four pills floated towards the four of them, and the last one floated above the pill furnace.

After they got it, Ye Muchen said: "The Nine Heavens Sword Saint must be eager to come here after handling the affairs of the Nine Heavens Palace, let's find a place to refine the pill first." This last one is used as bait. ”

"Okay, let's go." Jiang Yuan pushed his hand, and the last one flew towards Ye Muchen.

After Ye Muchen got it, he said: "Jiang Yuan, you know the formation, if this Dan furnace is not transformed, how can it be worthy of the hospitality of the Nine Heavens Sword Saint." ”

"I find you really bad." Jiang Yuan and Long Xuanbing glanced at each other, both smiled, and set traps in the alchemy furnace together.

Jiu'er nodded appreciatively and said, "I don't see that you're pretty bad, but I like it." ”

After finishing it, the four of them left immediately, and they didn't go very far, so they found a natural cave in the mountains near the boundless city to retreat.