A group of five people walked towards the center of the hall, and the yin qi became more and more profound.

"How should I collect the demon knife?" asked Sun Deng.

Everyone looked at each other, obviously no one knew how to collect the demon knife.

Xu Yang said: "Now, this refining array is still running, and there must be energy support. Let's take out the energy first, let the big array stop, and then make plans. ”

Several other people agreed, and Shen Yufeng said with a smile: "As soon as the big array stops, maybe the demon sword will be born automatically." ”

Under the big tripod that gave birth to the demon sword, there were nineteen mysterious trajectories crisscrossing each other, and the intersection of them was inlaid with milky white crystals, each crystal emitted a white light, and before it got close, the full Xuan energy rolled out.

"Oh my God, this should be the legendary 'Xuanjing', right?" Shen Yufeng took a breath and said in surprise, "A Xuanjing that is more precious than a superb Xuanjing, even the worst Xuanjing, is ten or a hundred times more than a superlative, and it contains abundant and pure Xuanjing. ”

"These Xuanjing should be the energy core of this formation, and they must be taken out. Sun Deng said.

Shen Yufeng said: "I'll try." ”

He summoned the wind python and roared towards the bottom of the big ding.

"Be careful!" As soon as Xu Yang said it, he saw that in the criss-crossing nineteen mystical trajectories, a strong white light suddenly burst out.

The wind python was shot by two rays of white light, passing through its body, and two more transparent holes appeared. Shen Yufeng snorted and took two steps back, blood stains in his nostrils.

"These nineteen mystical trajectories are a kind of mystical formations that cannot be broken by brute force. Xu Yang squatted down, observed the formation intently, and said.

The formations handed down from the Golden Age, the refining formations among them. Xu Yang had seen most of them, but the complexity and mystery of this formation were beyond the scope of his knowledge.

"On the whole, it seems to be the trend of the 'Heavenly Fire Purity' array, but there is a plausible illusion. Besides, the Heavenly Fire Purification Formation. Yang to rigidity, and this formation, collecting yin and evil, is evil and weird. ”

"Xu Yang, I have a book here, which should be helpful to you. Shen Yufeng took out a yellowed secret book, "Hehe, without this book, I wouldn't be able to open the door of the underground palace." ”

Xu Yang took the book. On the cover are written four ancient characters "Yinxuan Catalogue".

Xu Yang sat down cross-legged and turned the pages one by one.

"It's actually a secret book for teaching the way of runes. Xu Yang was taken aback and began to pay attention to this book.

On the outline of the [Seal Xuan Catalogue], the principles of runes, Xuan patterns, and formation patterns are clearly written.

These three terms have something in common, but they are different.

Runes are the fundamental, the trajectory of the embodiment of the wonders of heaven and earth. Runes are used on the mystical artifact and have evolved to a certain extent. It is the "Xuan Pattern", and the runes are used in the formation and have been evolved. It's the "formation".

The mystic can use the rhythm of music, seals, etc., to manifest the runes, which are in line with the wonderful principles of heaven and earth, so as to hook the power of heaven and earth.

Xu Yang has read a lot of cheats, and none of them are as thorough as this [Seal Xuan Catalogue].

Flip through the outline. Behind it are 300 formations, and there are notes below. It's just that the notes are very brief, and people who don't have a certain rune foundation can't understand them.

Xu Yang has a good foundation. He watched with relish, and turned the pages one by one.

"Xu Yang is really patient, that kind of ghost drawing, I have a headache after watching it for a while. Shen Yufeng said that he still wanted to take the book directly to the treasure trove area to redeem it, but he changed his mind later.

Xu Yang didn't waste much time, he didn't have time to finish reading the three hundred formations, and turned directly to the back.

After the three hundred formations, there is an introduction to various odd formations and remnant formations. Xu Yang was mostly familiar with the formations in the front, but he didn't know much about the various strange formations in the back.

"Hey, the formation is used, Yin and Yang are combined?" Xu Yang suddenly saw these words, and the doubts in his heart suddenly became a little enlightened, and he continued to read.

The other four didn't dare to disturb Xu Yang, for fear of affecting him to break the formation. Now the entire team is counting on Xu Yang to crack the formation.

Closing the Yin Xuan Catalogue, Xu Yang looked up at Da Ding, and below him were nineteen Xuan Arc trajectories, which had been flashing with white light.

"I see. ”

Xu Yang smiled slightly, and said: "This is the formation that has been transformed, and the shell is the formation form of 'Heavenly Fire Purity', but the intersection of the three key formations has been changed, and the Yang will be transformed into the Yin!

"It's such a domineering formation, it sounds like a killing formation. Shen Yufeng said.

Xu Yang said with a smile: "This Three Yin Killing God Array can be used as a killing array or a refining weapon, and it is infinitely useful. In this place of yin and evil, he continued to collect the three yin and evil spirits, injected them into the demon knife, and finally condensed into three demon eyes, each with magical powers, and the mystery was endless! The name of the demon knife should be called the 'Three Yin Killing Divine Knife'! The power surpassed the heaven-level mystical weapon. ”

"Beyond the Heavenly Rank?" the four of them all gasped, "Isn't that a Holy Rank Mysterious Weapon?"

Xu Yang shook his head and said, "I don't know." I now understand the trend of this 'Three Yin Killing God Array', and I can crack the formation at any time and take out the Xuanjing. There may be changes then, so be careful. ”

The others nodded their heads to indicate that they were ready.

Xu Yang took two steps forward, three more steps, and then walked straight to the left front, all the way to the side of the Three Yin Killing God Array.

"It's so weird, do you have to go like this?" Shen Yufeng tried to walk straight, but after taking two steps, after taking the third step, he saw a white light radiating from the formation, shooting towards him.

Shen Yufeng was shocked, and flew out upside down in embarrassment, dodging the white light of the formation.

Xu Yang said without looking back: "You should be glad that this is a refining array, but it is also a killing array, if it weren't for the fact that the Three Yin Killing Divine Sword has been formed, and the power of the formation has weakened to the extreme, just now you trespassed into the formation, you will definitely be shot by the white light and turn into pus and blood." ”

"Grandma's, what a wicked door. Shen Yufeng had palpitations.

Xu Yang's hands were sealed, and a hazy brilliance shot into the formation, and suddenly the big ding was rumbling and trembling, and the iron chain shook, making a shocking sound.

The light circulating in the Three Yin Killing God Array gradually dimmed, and at the intersection of the formations, a Xuanjing slowly floated up and fell into Xu Yang's hands.

"The first one. Xu Yang said with a smile.

Xu Yang concocted it in the same way, and in the clear sound of the iron chain shaking and trembling, Xuanjing was forced out one after another and fell into Xu Yang's hands.

With the loss of Xuanjing, the light of the entire Three Yin Killing God Array quickly dimmed, and the trembling of the iron chain became weaker and weaker.

"Oh no! Xu Yang, flash it!"

A shout sounded from behind, and a trace of alarm flashed through Xu Yang's heart, and without thinking, Dapeng's vertical and horizontal body trajectory was used, and it moved sideways in an instant.

Bang!

A huge black fist slammed into the place where Xu Yang was standing, and the hard stone ground with a radius of three feet was all cracked and dust was splashed! (To be continued......