The reason why Chu Chen was stunned was very simple.

This mission is completely different from the previous one.

Neither catching fish, nor learning to arrange formations within a limited time, but according to the previous three formations, let yourself comprehend a fifth-level formation!

"According to the three fourth-level formations learned before, within a time limit, the fourth-level formations will be integrated to create a fifth-level formation, and the formations will be laid out to resist the attack of the fifth-level demon beasts for a quarter of an hour, or use the fifth-level formations to kill the fifth-level demon beasts, that is, to pass the level!"

Chu Chen sighed softly, and glanced at a new fifth-level demon beast not far away from a distance, and suddenly his mood was not beautiful.

At present, he will only have three formations, the fourth-level trapped formation King Kong immovable formation, the fourth-level defensive formation Xiao Sumeru Vajra formation, and the fourth-level killing array Nine True Demon Array, and now he has to use the little resources he has at hand to create a new fifth-level formation.

To others, it may seem a bit difficult.

But for Chu Chen, it was not difficult at all, he sighed just now, his mood was not beautiful, it was purely hypocritical, and he wanted to embezzle a fourth-level formation scroll with great interest, but the result did not appear.

Thinking that he had come out of the secret realm, it was still a large expense to buy a fourth-level formation scroll, and he was not in a beautiful mood.

Chu Chen is now a sixth-level formation master, and the three formations have reached the consummation realm at the same time, and if he wants to develop a fifth-level formation, it is easier than drinking water.

These three fourth-level formations have been completed, and as long as they are performed once, with the blessing of a hundredfold system, they can automatically upgrade to fifth-level formations!

But the fifth-level demon beast on the opposite side was eyeing each other, and he had to think about which fourth-level formation to upgrade.

If you want to upgrade which formation, you must first cast this formation, once you cast it, the fifth-level demon beast will hear the wind and kill you.

If you think about it this way, the defensive formation will definitely not work, after all, the fourth-level formation is placed on the body, and the fifth-level demon beast will break it as soon as it touches it, even if the hundredfold system is upgraded to the fifth-level formation, but before it can be used, he will be killed by the fifth-level demon beast.

The defensive formation definitely won't work!

He vetoed it first, and after thinking about it, he felt that it was most appropriate to use the advanced level killing array.

The fourth-level killing array and the Nine True Demon Formation not only have the effect of trapping the formation, but also can kill the enemy internally, and now it has reached the realm of perfection, even the fifth-level demon beasts have a headache for a while, and they just use this time to upgrade and cast a new fifth-level formation.

That's it!

"Nine True Demon Array!"

Chu Chen thought silently in his heart, and then his hands kept flashing in the air, and the surrounding spiritual energy was arranged in an orderly and regular manner, forming a fourth-level killing array in an instant.

"Go!"

With a wave of his hand, this fourth-level killing array Nine True Demon Formation rushed towards the fifth-level demon beast, and trapped it inside, the fifth-level demon beast trapped in it was irritable, and the formation inside was killed, and it could only hurt the fur, but it couldn't really kill it.

The fifth-level demon beast is furious!

Roar!

With a roar, the fifth-level demon beast directly stretched out its sharp giant claws, broke this killing array, and rushed towards Chu Chen.

Seeing this, Chu Chen was so frightened that he broke out in a cold sweat, and his pigtails were about to stand up.

100 times system, you're fucking fast, if you don't come out, I'm going to die here!

Just when he was in a hurry, a pleasant and heavenly voice appeared again.

"Ding! You cast a four-level killing formation and nine true demon formations, and the fourth-level formation gains experience by 100 times 100. ”

"Ding! The proficiency of the fourth-level formation Nine True Demon Formation has been completed, and it will automatically advance to the fifth-level killing formation, five dragons and five elephant formations!"

What a time!

Chu Chen had never thanked the hundredfold system like today, and he was about to burst into tears.

"Five dragons and five elephant arrays, go!"

He didn't dare to stop at all, and directly cast a formation and threw it towards the fifth-level demon beast.

At this time, the fifth-level demon beast had already arrived at Chu Chen's side, and it was still three meters away at most.

The fifth-level demon beast was just about to launch an attack with a jump, but it was trapped by this new fifth-level formation and fell directly from the sky.

"Roar, roar, roar, roar!"

After the Five Dragons and Five Elephants Array was laid down, the formation was like five ancient giant elephants suppressing, so that it could not move for half a minute, and there was more aura to use the rules of heaven and earth to form five imaginary dragons, which roamed and galloped in it, killing everything!

The fifth-level demon beast obviously regarded this as its previous formation, thinking that it could be easily broken with its sharp claws, but it never expected that its body would be like the top of a thousand mountains, and it couldn't move at all.

At this moment, the light of the formation appeared, and it quickly formed a giant dragon, roaring and swimming inside.

These giant dragons seemed to have some spirituality, and they exploded directly towards the fifth-level demon beasts in the formation, and in the encirclement and suppression of the five giant dragons, they easily killed it!

Looking at such a thrilling scene, Chu Chen couldn't help but breathe a sigh of relief in his heart, and cold sweat flowed out at the moment.

You must know that this scene can happen two or three meters away from him, and he can be said to have seen the whole process up close and clear.

This sense of visual impact made him feel like a river and a sea, and he couldn't calm down for a long time.

Call!

Seeing that it was over, Chu Chen sat on the ground with his butt in his head, secretly saying in his heart that it was so dangerous.

It's a really difficult level!

The corpses in the secret room should have died at this level.

After just casting a formation, you have to integrate it and create a higher-level formation, which is simply a hooligan!

It's as if you just earned 1,000 yuan from a part-time job, and someone immediately forcibly demanded that you must earn 100,000 yuan, and you must learn to invest 100,000 yuan to earn 200,000 yuan!

Shameless!

These three words were Chu Chen's final summary of the ninth formation diagram.

Just as he was resting, a voice appeared in the air again.

"Congratulations to this destined person, who has learned my life's formation method, and everything in the secret room can be taken away. ”

As soon as the words fell, Chu Chen's head flickered, and he returned directly to the formation secret room.

When he looked up at these formation diagrams, he found that the nine formation diagrams hanging on the wall had already been automatically turned into ashes and fell to the ground at some point.

"It's a shame. ”

Chu Chen sighed, he was thinking of putting away these few formation diagrams, letting the disciples of the Nine Spirit Sect visit and study, and cultivating a large number of formation geniuses for the sect.

Just like that, it turned into ashes and disappeared, what a waste!

Looking at the marks on the ground, Chu Chen's heart ached.

However, at this moment, these ashes automatically flew up, gathered in the air, and then automatically formed a pitch-black token, and then fell directly into Chu Chen's hands.

"Formation Center Order!"

Looking at these words, Chu Chen's happy eyes narrowed into a line, as long as he had this thing, all the formations in the cave mansion could be mobilized, and to himself, it was nothing.

He can take whatever he wants!

Thinking of this, he hurriedly walked out, the pill room, the spirit weapon room, the rune seal room, the spirit beast room, I'm here!