"If you don't say it, I'll forget. ”

After hearing Xiao Yiyun's words, Zhang Yang tilted his head and glanced at her.

As he was talking, Zhang Yang grabbed another cloud of green smoke, turned around and took two steps back, stood in the center of a rune, and stomped his foot lightly and said:

"Up!"

Suddenly, a stream of pure energy spread out from his body, covering a radius of ten meters under his feet, and those energies were all visible to the naked eye, which was obviously a manifestation of an extremely high degree of aggregation.

'Boom'

I saw that a cloud of energy poured into the rune formation on the surface, and those dense mysterious characters all lit up and shiny, like flowing water, and began to operate tightly, forming a formation.

As the first formation operated, the other runes were also awakened one after another, emitting a faint light, revealing their respective legal appearances.

For a time, the entire hall of Zaoyuan presented a scene like the sun and the moon competing for brilliance, and the stars were intertwined.

Each of these formations does not exist independently, when all the formations operate at the same time, it seems to be gears of different sizes, transmitting and interacting with each other.

"What is this?"

Ye Kunlun and Xiao Yiyun looked surprised. Obviously, just now, this hall was still lifeless, why did so many formations suddenly appear?

"This is the formation left behind by the master of the Yuan Divine Palace, this is only the core part, which is used to maintain the normal operation of the entire palace and even the entire abyss outside, and will not be swallowed up by the outer void energy. ”

Zhang Yang stood in the center of the formation, dressed and hunting, like the master of heaven and earth, exuding boundless majesty all around his body.

He looked at the two of them and said lightly:

"Do you know why the Immortal Gate is opened once in twenty-five years?"

"I don't know. Ye Kunlun shook his head and didn't know.

Xiao Yiyun was reluctant to bow her head, thought for a while and said, "Why do you ask that, do you know the reason?"

Regarding this doubt, many ancestors and predecessors of Xianmen have long noticed it, and they have studied it for a long time, but in the end they have not been able to find the answer, and with the changes of the times, this question has slowly been put down.

Although Xiao Yiyun didn't know, she also didn't believe that Zhang Yang would know the answer to this question.

"Of course I do. ”

I saw Zhang Yang said with a determined face: "Because there is a formation here, the famous positive and negative four-elephant array, which is used to open the gate of the cave, this formation, which is blessed with specific runes, will operate every once in a while, and the period is twenty-five years." ”

"Positive and negative quadruple arrays?"

Xiao Yiyun couldn't help frowning when she heard this.

The name of this formation is extremely unfamiliar to her, looking at the various sects in the fairy world, Qimen Dunjia, eighteen kinds of martial arts, all proficient, and I have never heard of a positive and negative four-elephant array.

"The Four Elephant Array, I've heard of it, but what is this positive and negative Four Elephant Array?"

Xiao Yiyun asked, while looking at Zhang Yang with suspicious eyes, and began to guess in his heart whether this was a formation that Zhang Yang made up casually.

"I know you don't understand. ”

Zhang Yang shook his head angrily, and while he still had time, he explained: "The positive and negative four elephant arrays, as the name suggests, one positive and one negative, can operate in both directions, more than it is used to build a passage connecting the cave. When it moves forward, it is like a gate open, and it can enter and exit on its own, but if it moves in reverse, the gate is permanently closed, and it does not exist. ”

"I say that, do you understand?"

Xiao Yiyun had a calm face and did not speak.

"Alas. ”

Zhang Yang had no choice but to shake his head and sigh.

It is different from the ordinary four-elephant array, not only borrowing from the Taoist theory of the four elephant gossip, but also extending to the source in this theory, touching the deepest Liangyi doctrine, that is, 'one yin and one yang is the Tao'.

This kind of theory, in human language, is difficult to describe, unless you have reached that state close to the Tao and experienced it yourself.

Zhang Yang was also able to obtain the essence of the essence of these mysterious runes through the interpretation of these mysterious runes, coupled with the description of the Taoist book, as well as part of his own imagination, but it was also a realm that could only be understood and could not be spoken.

'The mystery of these formations, let's not mention it for the time being, let's just say that along the way, so many runes have been seen, it is difficult to explain it clearly to the two of them. ’

The runes painted in all corners of the palace, seemingly chaotic but incomparably mysterious, are actually a character language, coming from the extraterrestrial universe, from the depths of the starry sky.

Through interpretation, Zhang Yang learned part of the information of the Yuan Creation Divine Palace, found the core of the Yuan Creation Hall through clues, and also saw this extremely mysterious ancient well, as if it could connect the center of the earth, and there were so many immortal formations.

With such a huge amount of information, Zhang Yang himself had an extremely difficult time to understand, and there was no way to explain it clearly to the two of them. This is like teaching algebra knowledge that will only be exposed to university to a fifth-grade primary school student, which is simply impossible, because the cognitive and intellectual level of primary school students is far from reaching this level.

But to prove it, it's simple.

"Then you can see how the immortal gate is closed. ”

After saying this, Zhang Yang's expression froze, he stomped his feet heavily, and shouted:

"Positive and negative four elephant arrays!

Suddenly, a wave of energy ten times larger than before spread out in a ripple pattern, covering the formation under his feet. Thousands of tiny runes bloomed with brilliant light, almost more dazzling than the stars in the sky.

Between these runes, a line visible to the naked eye extends from each other, intersecting to form a mysterious totem, but as the totem emerges, the energy is even more violently consumed.

'Bang!'

In the end, the rune was only halfway completed, and it died due to the exhaustion of energy.

"Open again!"

Zhang Yang frowned, lifted Zhenyuan suddenly, and stomped down again.

This time, he opened the Purple Mansion widely, allowing the rich True Yuan to emerge like a tidal wave, and it continued to merge into the formation. I saw that the whole formation, the light was getting brighter and brighter, and the totem was also clear.

'Boom!'

A huge wave of mana, through the formation, rolled out in all directions, like a meteorite falling to the ground, and the surface emitted a tremor.

'Knock!knock!'

As the pattern became clearer, the mana ripples became denser and denser, and layers of ripples poured into the void, as if awakening something, and the whole world seemed to be different from just now.

In the end, Zhang Yang let out a long roar, and the strongest true qi erupted in his body, completely opening the formation.

At this time, thousands of rays of light intertwined in the void to form a huge star pattern, as if it was a miniature heavenly world, with the stars revolving, the sun and the moon contending.

"Almost, within an hour at the saviest, the immortal gate will be closed, and the next time it will be opened will be twenty-five years later. ”

Zhang Yang stepped out of the formation and said lightly.

"I don't believe it unless I see it with my own eyes. Xiao Yiyun raised her chin and said arrogantly.

"You can go out and have a look, I won't stop you. Zhang Yang shrugged.

Xiao Yiyun pursed her lips, turned around and walked towards the entrance.

Zhang Yang didn't stop her, but looked at Ye Kunlun and said, "Let's go, while there is still time, let's go to other places to search." ”

The two of them went all the way back to the previous fork in the road, came to the palace's Zangjing Pavilion, Shenbing Pavilion and Tiandan Pavilion, and hurriedly glanced at it, as long as it was something that could be seen, all of them were included in Zhang Yang's Qiankun bag, and many of them didn't even look closely.

"Leave it alone, take it all away. ”

Listening to Zhang Yang's tone with a hint of urging, Ye Kunlun couldn't help but feel strange, looking at Zhang Yang's tone, as if he was in a hurry to do something.

With a hint of bad premonition, Ye Kunlun asked tentatively, "Mr. Zhang, is something going to happen?"

"It's okay, the immortal gate will be closed soon, and none of the heads of the five major sects will be able to reach the earth. Zhang Yang grinned and said:

"But I'll have to go in before the door closes. ”

"Huh?"

When Ye Kunlun heard this, his expression suddenly changed greatly: "Mr. Zhang, you must think about it carefully." ”

"I understand. Zhang Yang nodded, and then smiled: "There are some things, I want to figure it out." ”

"Then there's no need for this, we can think about it in the long run..."Ye Kunlun still tried to dissuade him, "Anyway, right now, the fairy world can't threaten the earth for the time being, and we still have a lot of time." ”

"There is no other choice, even if I don't go this time, this positive and negative four-elephant array can only maintain the peace of twenty-five years, and the next time the immortal gate opens, the one who should come will still come. ”

Zhang Yang took a deep breath, patted Ye Kunlun on the shoulder and said, "According to seniority, I have to call you senior." ”

"Senior Ye, I have made up my mind, so don't say it again. ”

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