After Xuanyuan Dihong finished drawing the last stroke, a strange pattern appeared on the flat ground.

Han Ya obeyed the command of Emperor Xuanyuan and brought four large stones to place them in the four directions of southeast, northwest and northwest.

Emperor Xuanyuan's face was solemn, he recalled it carefully, and threw out the stone in his hand.

Twelve small pieces of gravel flew out of his hand and landed steadily in the upper left corner of your direction.

Emperor Xuanyuan raised his eyebrows, waved his hand again, and flew out twelve more pieces of gravel, forming a polygon on the inside of the quadrilateral.

After Emperor Xuanyuan's formation ended, the outside world, which was originally slightly clear, blurred, and the entire valley was shrouded in a white mist, and Han Yao looked up and could see a white ethereal cover above his head.

Han Crow was stunned.

Will the master set up the formation?

Mu Yi, who witnessed Emperor Xuanyuan Hong's formation, nodded again and again, she had only set up a formation in front of Xuanyuan Emperor Hong once, and Xuanyuan Emperor Hong completely remembered it.

This valley of life and death, in the middle of two spatial rifts, is squeezed by the force of spatial rules, and people of the same mass are subjected to different gravity here.

In addition to this, it is necessary to prevent space storms.

The system smacked: 1* gift pack, 30 pieces of energy gravel.

I happened to be sleepy, and the pillow came!

Opening the system gift bag, Mu Yi saw the blue gravel on the system cabinet at a glance.

Mu Yi's heart was overjoyed, and he was about to reach out and take out the energy stone, but when he saw Xuanyuan Emperor Hong's master and servant, he coughed dryly, reached out to his cuffs, and actually took out twelve energy crushed stones in the system.

"Place these pieces of gravel on the outermost shield. Mu Yi said to Emperor Xuanyuan.

The blue gravel glows softly.

Xuanyuan Dihong saw the blue gravel that Mu Yi took out, and felt inexplicably familiar, so he took a closer look and took the gravel with an unchanged face.

It feels even more familiar to start.

To what extent is it familiar?

Xuanyuan Dihong even felt that the blue gravel in his hand was a part of his body, and his heart suddenly felt two points of difference.

Emperor Xuanyuan lowered his eyes and looked at it for a moment, then walked to the outermost part of the formation, and placed the blue gravel in the middle of the formation stone one by one.

Han Yao noticed that the originally faintly transparent and thin hoof on the top of his head lit up, covered with a layer of light blue light.

Between breaths, the light blue fades.

Han Yao privately guessed that the body protection shield of this formation should have become stronger.

At this time, Mu Yi had already walked to the center of the formation.

Taking out the Thunder Tower from the system, Mu Yi waved her hand, and a small and delicate black Exquisite Tower fell from her hand, suddenly enlarged, and the black and dark iron tower stood majestically.

A magnificent seven-story tower appeared out of thin air, not to mention Han Ya, even Xuanyuan Emperor Hong was surprised, and now he had a deeper understanding of Mu Yi's mysterious methods.

“…… Thunder Tower," Xuanyuan Emperor Hong walked towards Mu Yi, looking up at the plaque hanging on the tower door, the plaque was written with three powerful characters, Xuanyuan Emperor Hong read it unconsciously.

What is it?

Xuanyuan Dihong looked at Mu Yi suspiciously.

Seeing that this thunder tower could really be enlarged and used as a real thing, Mu Yi was overjoyed in his heart, and at the puzzled gaze of Emperor Xuanyuan Hong, Mu Yi smiled and didn't explain much.

"Let's go. Mu Yi took the lead towards the tower.

The tower door clicked open.

The three of them entered the tower, and as soon as they entered the tower, the three of them were wrapped in a light blue light mask.

The tower was dark, and occasionally wild beasts with rhinoceros horns and wings crawled and flew by.

Calm as Han Ya and Emperor Xuanyuan Hongju are eyelids jumped.

Fortunately, the beasts with hideous expressions ignored them as if they had not seen them.

Han Crow's quiet eyes moved.

Mu Yi also felt strange: system, these beasts are blind?

System:...... No. As soon as the three of you enter the tower, you have a shield of light, and after a quarter of an hour the shield disappears, they will be able to see you, and they will attack you as an invasion of the aliens.

Muyi: ......

Reaching out and carefully touching the light mask next to him, the attributes and characteristics of the light mask popped up in his mind.

Profile: Low-level reticle, primary defense, defense value 20, characteristics, blurring the view of others.

Mu Yi smiled.

In the 21st century, she had released her natal soul power to protect Song Xiao and Le Di, and she still remembered that at that time, the attribute positioning of the black-gold light mask released by the system for her was quite high.

Mu Yi's heart moved, and he called up the information of the black and gold light mask.

Profile: Advanced Reticle, Primary Defense, Defense 85, Features, Blurring Others' Vision.

Mu Yi smiled.

After looking around, there were seven doors on the first floor, each with a star drawn on it.

The inscriptions on the plaques on each door are different: astronomy, geology, the art of war, swordsmanship, puppetry, and alchemy.

There is one star on the first floor, could it be that there are two stars on the second floor? Mu Yi secretly guessed.

System: Guess correct.

Mu Yi's spirit was shocked, and his eyes moved outside.

The tall monsters outside looked very scary, and Mu Yi called up their information.

Profile: Rhino Horn Monster, attack power 30, characteristics, infinite power.

Mu Yi's gaze shifted and landed on Xuanyuan Emperor Hong and Han Ya.

Xuanyuan Dihong information: Gongzi Dihong, attack power 40, characteristics, infinite power, and strategy.

Han Crow Profile: Guard, attack power 65, characteristics, fast speed, good at assassination.

Xuanyuan Emperor Hong and Han Ya's combat strength was barely strong, and there were only ten rhinoceros monsters outside, and it was more than enough for the two of them to deal with these rhinoceros horned monsters.

In this way, she can safely hide aside and refine the sword for Emperor Xuanyuan!

Mu Yi made up his mind, pointed to the closed tower door on the first floor, and commanded in a cold voice, "Xuanyuan Emperor Hong, next, you two will exercise in this tower...... Kill these monsters, and then, open these roads. ”

After instructing Mu Yi, he waved his hand and removed the body protection shield in front of the three of them.

At this moment, the rhinoceros monsters wandering aimlessly in front of them suddenly looked like cats smelling fishy.

Rao is Han Ya has a good quality in his heart, and at this time, he couldn't help but turn cold, and subconsciously took a step back.

A strange cry sounded inside the tower, and the rhinoceros monsters all gathered towards Xuanyuan Emperor Hong and Han Crow.

Huge body, scary rhinoceros horn.

Emperor Xuanyuan looked at the rhinoceros monster that trembled on the ground with every step, and his face turned slightly pale.

When he turned around, Mu Yi was no longer in the tower.

Emperor Xuanyuan took a deep breath.

If it comes, it will be safe.

Xuanyuan Emperor Hong stretched out his hand and pulled out a black dagger from the leggings, his eyes fluctuating with murderous intent, and pounced towards the nearest rhino horn monster beside him.

Sensing the hostility, the rhinoceros rushed over with its big head, the ground shaking and making an earth-shattering sound.

Xuanyuan Dihong turned sideways, his chest was hit by the rhinoceros monster, he turned over and sat on the rhinoceros monster's back with a cold face, and the black dagger with iron as mud stabbed into the rhinoceros monster's neck.

A red light leaked from the rhinoceros monster's neck, and the seemingly powerful rhino horn monster collapsed in a hurry.

On the other side, Han Crow had killed two rhinoceros monsters in a row.

Mu Yi, who was hiding in the corner and covered with a layer of black and gold light, nodded secretly, sat down cross-legged, and took out the black iron stored in the system and tempered it.