After the battle with the Demon King, the snowfield returned to tranquility.
The depths of the ice are filled with dead silence.
Yan Sushi sat cross-legged and was silently meditating on the formation and the secret techniques.
Her talent in formations is extremely high. In just a few months, she has mastered more than a dozen low-level formations. In comparison, the cultivation of secret techniques is much slower, and she has not yet been able to comprehend them. Running cloud hand.
Gu Xiuyun sat on the other side, deducing the middle-grade formation.
Suddenly, there was a creaking sound in the ice.
"What's going on?"
The two of them opened their eyes at the same time and looked around.
In the cracks in the ice not far away, there was faint black air emerging, soaking into the ice, dyeing the pure white ice gray.
"Is that... evil spirit?"
Gu Xiuyun's expression suddenly changed.
How hard is the ten thousand year ice, how can ordinary air flow penetrate into it? Even the light-refining sword energy can only penetrate to a depth of half a foot.
But the black air in front of him was like ink spilled into running water, without any obstruction, and it easily covered large areas of ice.
In addition to evil spirits, what else can have such power?
He quickly activated the turtle's black armor sign, and sure enough, the secret pointed to the evil spirit.
"Why is there evil energy here? Is there an earth vein hidden under the ice? The two demon kings fought and opened the cracks in the ground, so the evil energy seeped out from the earth veins?"
Gu Xiuyun raised his eyebrows slightly and continued to move the hexagrams to explore the source of the evil spirit.
If there is really a ground vein hidden here, it is likely that it has not been discovered by the four great sects. After all, it is under the ice and deep into the snowfield. Who can find it?
A leyline that has not been raided is definitely a treasure.
"Gu Xiuyun, what is the evil spirit?" Yan Sushi asked.
"A very scary mist, be careful not to be touched by it," Gu Xiuyun said solemnly, "If there is an evil spirit approaching, take the cold jade essence immediately, and then use your spiritual power to resist it. , must not rely on the physical body, otherwise it will take away the vitality of the physical body, and life or death will be unpredictable."
"So powerful?" Yan Sushi's face turned pale.
"The evil spirit was transformed from the turbid air when the heaven and earth first opened. It has the magical power to destroy the vitality of all things and return them to their original origin, so it is naturally powerful." Gu Xiuyun explained.
Hearing this, Yan Sushi immediately looked around to prevent evil spirits from seeping out of the ice and approaching him.
Gu Xiuyun’s spiritual power surged around his body, and the turtle’s black armor sign danced out of thin air, drawing countless strange symbols.
Suddenly, fourteen hexagram signs stopped at the same time, all pointing to the southeast side of the ground.
"It seems that the source of the evil energy is there," Gu Xiuyun's eyes lit up, "Miss Yan, wait here, don't move around, if you can't block the evil energy, hide in the cold Yin array , and it can last for a long time."
As he spoke, he waved several palms in succession, shattering the ice in front of him, and walked deeper into the ground.
Thousand-year-old ice should have been extremely hard, but after being penetrated by the evil spirit, the structure inside it has been destroyed. At this moment, it is slightly worse than ordinary ice, and naturally it cannot stop the palm force.
Peng! Peng! Peng!
The ice continued to shatter, and in just half a stick of incense, Gu Xiuyun had already penetrated ten thousand feet.
The closer to the source, the stronger the evil spirit in the ice. If it were other practitioners, they would have been forced by the evil spirit to turn around and run away, and they would not dare to go deeper.
But Gu Xiuyun has understood the spirit armor technique, and the spiritual armor around him is extremely tough. Even if he stands in the strong evil aura, it will not be damaged at all.
The fusion of five types of restrictions is much more powerful than the four types of restrictions.
If the fusion of the four prohibitions is still within the category of secret law, the five prohibitions are already close to the true Tao.
So even among the disciples of the Wuhen Sect, there are few who integrate the five types of restraints and perfect the secret technique. Even if they do, most of them understand the killing secret technique, not the spiritual armor technique.
After all, in terms of the difficulty of cultivation, methods such as Benyun Hand Refining Light Finger do not need to maintain the stable existence of fusion restrictions, so the difficulty is naturally lower.
After walking another three thousand feet, Gu Xiuyun saw the source of the evil aura.
It was a huge spherical cave.
At this moment, a crack opened in the cave, and the smooth cut faintly revealed a cold light. Gu Xiuyun walked into the cave along the crack and looked around.
The cave is shaped like an egg, and the surrounding stone walls are covered with formation patterns and densely packed with formation flags.
At a glance, there are tens of thousands of them.
At the bottom of the center of the cave, there is a dark and bottomless well, which is exactly the same as the dark abyss in Youning City, and evil spirits are constantly seeping out of it.
"It seems that I guessed wrong. This is not an earth vein, but a dark abyss that has been sealed for countless years."
Gu Xiuyun was thoughtful.
The surrounding formation flags are close to decay, and the formation patterns are almost flattened. It can be seen that the sealing formation here is close to collapse.
Even if the two demon kings do not fight here, the sealing formation will collapse in at most three thousand years.
It just so happened that one of the demon kings used his sword-light magical power to break through the earth, pierce deep into the ground, and split open the egg-shaped cave. Only then did this place appear in the world early, and the evil spirit filled the ice. middle.
The cave is filled with a strong evil spirit. Once such a huge evil spirit is leaked out, it will be enough to destroy most of the snowfield. The monsters have spiritual protection and can naturally resist it, but those ordinary creatures will be able to withstand it. There were countless casualties.
Gu Xiuyun walked to the cave wall and carefully observed the formation flag shape.
He has read many classics in the Wuhen Sect, and also knows that the formation flags used by the four major sects are different. In many cases, just by looking at the formation flags, you can tell the origin of the other party.
But the formation flag in front of him was completely different from the four great sects, coming from another school entirely.
"Could it be that I guessed wrong?" Gu Xiuyun quickly glanced around, observe the formation patterns in the cave wall.
After a long time, his eyes lit up.
"The formation on the stone wall is not for sealing, but for protection."
"Could it be that this is a protective formation, to protect the dark abyss?" Gu Xiuyun turned his head Looking at the bottomless pit in the center of the cave, "Since it is a guardian formation, maybe the bottomless pit here can lead to a secret place? If this is the case, it is worth exploring."
Underneath Youning City Although the dark abyss is connected to the depths of the earth, its end is a deserted land. As early as countless years ago, there were Douxiao realm experts who entered it to investigate.
In the end, the strong man was trapped in despair and died in the depths of the dark abyss, leaving only a few last words, which were sent through the messenger talisman.
After that, no cultivator dared to go deep into the dark abyss under Youning City, and even the four great sects gave up on this place.
“According to the records of the Wuhen Sect, the dark abyss under Youning City is a death hole, while the dark abyss behind Beiqiong Mountain is a spiritual hole, so the Weak Water Sect will continue to send disciples. , went to investigate."
After entering the Wuhen Sect, Gu Xiuyun read many classics. The Wuhen Sect did not have any restrictions on books on unofficial history, so he read a lot.
We also know that there are many bottomless abyss in the secret realm of demon spirits.