"Let's go!"
When the bronze door exploded, Mandala's voice resounded in the ears of Mu Chen and the rest. The latter and the rest immediately flew out, turning into ten-odd streaks of light that shot towards the bronze door.
Mandala took the lead and stepped in.
Buzz!
In that instant when they flew into the bronze door, Mu Chen could clearly sense the spatial fluctuations around him. His vision turned dark for an instant before it cleared up.
However, in that instant, a terrifying and boundless killing aura swept over from all directions like a ferocious beast that could destroy the heavens and earth.
Under that terrifying killing aura, the backs of Mu Chen and the rest were instantly drenched in cold sweat.
Roar!
They looked over, and only then did they realize that the world in front of them had undergone a tremendous change. It was like a boundless plain, and at this moment, under the dim yellow sky, the space on the plain had started to be torn apart.
A torrential evil aura swept out from those cracks. Thereafter, Mu Chen and the rest saw a black current endlessly surging out from those cracks.
A bizarre roar resounded from the black current. That voice seemed to be incompatible with the Great Thousand World. That's because when that voice resounded, the Spiritual Energy between the heavens and earth started to flee, as if they were repelling it.
Mu Chen stared at the black current and his heart suddenly trembled. He saw that there was a figure within the black current.
He saw countless blurry silhouettes that seemed to be extremely robust.
However, their bodies seemed to be made of mist, vaguely showing signs of distortion.
Only the slightly dark red eyes on the head started to light up bit by bit. They were filled with devouring and greed.
The bizarre ear-piercing sound that was repelled by the Spiritual Energy in this region came from them.
When the black current endlessly charged out of the spatial crack and appeared in this region, the Spiritual Energy in this region started to boil. Mu Chen raised his head.
In the distant horizon, torrential clouds whistled over with streaks of light streaking across the horizon. If one took a closer look, they were the experts of the Great Thousand World that were emanating powerful Spiritual Energy fluctuations around them.
Roar!
When the black torrent saw the experts of the Great Thousand World sweeping over, it unleashed a roar before the black torrent swept across the heavens and earth.
In the next instant, the two terrifying torrents violently collided with each other in a destructive manner.
Even the heavens and earth had shattered from the clash.
The two currents clashed.
Mu Chen and the rest could clearly see several black smoke-like silhouettes shuttling through space with their smoke-like arms.
However, it instantly pierced through the powerful defense of an expert. Then, his arm was like an incomparably sharp blade.
Thereafter, those arms were akin to sharp blades as they stabbed into the latter's body.
Argh!
The expert let out a blood-curdling screech as his body rapidly withered away.
In just a few breaths' time, his body had been reduced to dust and dissipated. The black silhouettes emanated a weird laughter.
This scene made Mu Chen and the rest feel their scalps going numb.
Such intense battles were taking place in every corner of this region.
A brutal killing aura enveloped the heavens and earth. Under the impact of the killing aura, the eyes of Mu Chen and the rest had a smear of scarlet in their eyes.
Boom!
But just when their eyes turned even redder, a clear bell rang out. The bell seemed to have enlightened them, causing the minds of Mu Chen and the rest to clear up. The redness in their eyes had also retreated, breaking free from the influence of the killing aura.
But even so, it made their hearts palpitate. Raising their heads, they saw Mandala standing before them. The latter gently flicked her hand and Spiritual Energy fluctuated, causing a clear bell to ring out.
Evidently, she was the one that had pulled Mu Chen and the rest back from the influence of the killing aura.
"This is the battle that occurred in the Fallen Battlefield when the Fiend Clans invaded the Great Thousand World." Mandala looked down at the intense battle and slowly said.
Although Mu Chen and the rest had already guessed it, their eyes couldn't help narrowing when they heard Mandala's confirmation.
These figures that seem like black mist are the so-called Fiendish Race?
"No one knows where the Fiend Clans came from, but they were like locusts that devoured the Spiritual Energy between the heavens and earth. If they were allowed to invade the Great Thousand World, then the entire Great Thousand World would definitely collapse, which would affect the countless Lower Planes beneath the Great Thousand World."
"I have once seen the Great Thousand World that was invaded by the Fiend Clans. The Spiritual Energy there had completely disappeared, and it's no longer suitable for Spiritual Energy cultivation. The lifeforms on the Great Thousand World had also become ordinary due to the disappearance of Spiritual Energy." Mandala's face turned solemn at this moment.
"Hiss."
When Mu Chen and the rest heard her words, they couldn't help inhaling a cold breath. They couldn't imagine what it would be like if there was no Spiritual Energy in the heavens and earth.
To the Great Thousand World, it would undoubtedly be the end of the world.
It was no wonder why the entire Great Thousand World would unite against the invasion of the Fiend Clans. That's because the outcome would be catastrophic for all the cultivators in the Great Thousand World.
"The battlefield here is only a projection. Don't be affected by the killing aura. Otherwise, you guys will also become one of them." Mandala reminded.
Mu Chen and the rest immediately nodded their heads. If it wasn't for Mandala's protection, not even half of them would be able to escape alive. The Earth Sovereign Realm Treasury was truly filled with danger.
When Mandala saw their response, she no longer spoke. She turned around and flew towards the end of this region. With a gentle wave of her hand, she had enveloped the torrential killing aura that swept over.
Mu Chen and the rest immediately followed up and circulated their Spiritual Energy to protect themselves. They did not dare to be careless.
As they flew across the battlefield, Mu Chen and the rest realised how vast this battlefield was. They had flown for god knows how long, but the end of the battlefield still couldn't be seen.
The entire heavens and earth had gradually turned red from the killing aura.
Mu Chen and the rest had no idea how long they had to fly for. But since Mandala did not make a sound, they could only follow closely behind.
After following for a long time, Mandala's figure finally slowed down a little and her solemn voice resounded in everyone's ears, "Be careful!"
Hearing Mandala's warning, Mu Chen and the rest were stunned. However, they had tensed their minds out of reflex and circulated their Spiritual Energy.
Buzz!
Just when they circulated their Spiritual Energy to protect their bodies, they abruptly sensed that the intense battle cries in this region had suddenly disappeared.
At the same time, there was a huge change in the surrounding heavens and earth.
The vast battlefield had already disappeared and was replaced by a boundless ocean. This ocean was a dark-green colour with waves whistling before falling. When the waves fell, Mu Chen and the rest could clearly see that space seemed to have been crushed by the waves.
Every single drop of seawater here seemed to weigh a thousand catties.
Mu Chen and the rest looked at this scene in astonishment. The ocean seemed to be bottomless and the depths of the azure sea seemed to have turned into endless darkness, which made their hearts turn cold.
The sky above the ocean was also filled with endless darkness.
Mu Chen and the rest looked at each other. Although this unfamiliar ocean wasn't filled with the intense aura of the ancient battlefield, for some unknown reason, they felt an extremely heavy pressure.
That pressure was indescribable, but it made it hard for them to breathe.
Mandala stood on the sky as her golden pupils swept at the dark-green ocean. A brief moment later, a golden light flickered in her eyes as she muttered to herself, "What a good method."
"Domain Ruler, this is?" The Sky Vulture Emperor asked in a low voice. Even he could feel the formless pressure from this ocean.
"If I have not guessed incorrectly, this should be the Sovereign Sea of the Fourth Palace Master." Mandala faintly said.
"The Sovereign Sea?"
The various Kings widened their eyes in an instant as they looked at this region, dumbfounded. The Sovereign Sea was the source of power for every Sovereign, so they were extremely familiar with it. But this was the first time that they had seen a Sovereign Sea that could transform into such a scene.
"When one's strength reaches the level of the Fourth Palace Master, the Sovereign Sea is equivalent to a space. When encountering an enemy, the Sovereign Sea can be directly sucked into it. At that time, even if it's an Eighth Grade Sovereign, a wave of Spiritual Energy would be able to turn them into nothingness." Mandala said.
When Mu Chen and the rest heard her words, they inwardly smacked their lips. Generally speaking, those at their level would hide their Sovereign Sea in the most secretive part of their bodies, fearing that it would be destroyed by others. After all, it wouldn't matter even if their physical body was destroyed. But if their Sovereign Sea was destroyed, then their cultivation would be gone.
Therefore, no one would dare to easily suck their opponent into their Sovereign Sea.
But how could they imagine that the means that they avoided would be so terrifying in the hands of an Earth Sovereign Realm?
"This should be the centre of the Earth Sovereign Realm Treasury."
Mandala's golden pupils looked at the depths of the ocean as she pointed her hand over. "Be careful."
When Mu Chen and the rest heard her words, their hearts trembled. They had finally arrived at the centre of the Earth Sovereign Realm Treasury?
They wondered if the other peak forces had also made their way in.
The various Kings exchanged a look as their expressions tensed up. They could sense the terrifying storm that was about to arrive!