"Boom!" The earth suddenly collapsed, and the black fog shrouded the entire training camp and fell into the ground, "Boom! There was another bang, and after the training camp fell to the ground, the ground above it suddenly closed like a gate, and what was originally a very gloomy place suddenly became invisible.

"Great Elder, what kind of spell is this?" Mawson asked in a low voice, "Are we in the underworld?" ”

"This is the underworld that he created with his mana," Mu Yun replied, "It is a dark magic that has been lost for a long time, after entering this underworld ghost domain, his combat power will be greatly improved, while the combat effectiveness of people whose physical attributes are not dark will be greatly reduced." ”

"So here, isn't he invincible in the world?" A look of fear rose on Mawson's face, and if it weren't for the darkness here, his pale face would have been startled to look at.

"Haha, you guys have a bit of knowledge!" The fourth child's voice came from all directions, "Mu Yun, today is your death!" ”

"Haha A series of strange laughter continued to come from the surroundings, and Mo Sen nervously gathered all the spiritual energy in his body, and turned his body back and forth to look around, but it was shrouded in darkness, and he couldn't see anything clearly.

"Boom!" There was a bang, and from Mo Sen's side, where Mu Yun was standing, a huge fireball with a diameter of several feet suddenly rose into the sky, illuminating the entire space in a bright light.

Then a white figure under the fireball also rose up, and swept into the air with the fireball.

"Boom!" The fireball seemed to hit something in mid-air, and it exploded in an instant, and the sparks flew in all directions, like fireworks, and dyed red in the air.

"Whew!" A demon beast's roar came from mid-air, and the giant chapter that was originally hidden in the darkness suddenly appeared in mid-air, and then saw it open its blood basin and gush out thick black mist.

"Humph! You still have the strength to fight back in my Nether Domain! The fourth child's voice echoed in the ears of Mo Sen and Mu Yun, "However, even so, you won't survive today!" ”

Mu Yun's eyes were like lightning, ignoring the nonsense of the fourth child, her figure disappeared in mid-air in a flash, and the next moment, she appeared on the left side of Juzhang, and the long sword in her hand slashed like lightning, "Poof!" With a bang, Juzhang's three tentacles were cut off by her roots.

"Whew!" Juzhang let out a miserable cry, "Gooo The dark green liquid gushed out wildly, and under the pain, its other tentacles suddenly swept towards Mu Yun, "Woo! "There was a howling gust of wind.

Mu Yun smiled slyly, his figure disappeared again, and then appeared directly below the giant chapter, "Poof! With another sword, she severed two of the giant chapter's tentacles by the roots, and then quickly teleported to Mawson's side.

"Mu Yun!" The fourth roared angrily, pointed at Mu Yun with his hand, and scolded, "You cowardly rat have the ability to fight with the master with real knives and guns for three hundred rounds!" What kind of sneak attack is it? ”

"As long as I can beat you, it's a good skill!" Mu Yun chuckled, clasped his hands in front of his chest, and teased the fourth child very casually.

"Beat me?!" Lao Si looked at Mu Yun with disdain, "Dream!" With that, his arms covered with black mist suddenly stretched out, and around Mu Yun and Mo Son's side, dozens of white skeletons suddenly appeared, each skeleton held a black and shiny short-handled axe in their hands, their eyes flashed with a strange blue light, and the upper and lower jaws kept colliding together, making a terrifying sound of bones colliding.

"Slaves of the Underworld!" Mu Yun recognized the origin of these skeletons at a glance.