Somewhere in the underground palace, Su Sheng had just killed a silver creature and took out the spiritual power core the size of a fingernail.

Suddenly the ground trembled, and then Su Sheng seemed to sense something, and took out the mountain-shaking stick from the ring with his hand.

"This fluctuation...it seems that there is another mystery in this underground palace."

Su Sheng's eyes condensed, and with a slight sense, he walked towards the direction guided by the mountain-shaking stick.

The complicated maze passages are indeed easy to lose their direction, but fortunately, the traction on the mountain stick is always there.

Su Sheng knew that the current situation was likely to have undergone an extremely critical change in the underground palace, so he did not get entangled with any creatures on the way and galloped along the way with the guidance of the mountain-shaking stick.

Three full days later.

Su Sheng passed by a corner and his eyes suddenly became clear.

It seemed that I had arrived at the exit of the maze, and a large area ahead was no longer a wall, but a huge palace.

The palace is surrounded by a low and high in the middle, while the hall in the middle is more than 80 meters high.

Outside this palace, a circle of black barrier light curtains soared into the sky to isolate it.

Su Sheng looked left and right, and at every distance, some exits were evenly distributed to come here.

At this time, a three-person team seemed to be blocked by the black light curtain and could not enter the palace.

"Yang Ping, try using Yang Hua?" asked one of the broad-body and fat young men.

The young man named Yang Ping shook his head: "It's really not possible. Even the flame explosion of Dacheng did not work at all. What's the use of Yang Huatu, which has just been obtained and cultivated in the underground palace and has reached the beginning? It doesn't even have half the power of the flame explosion!"

Fatty Wang Yulong looked irritable: "What should I do? This palace is many times larger than the scattered palaces before. It is obvious that it is the core of this underground palace. There must be many good things. Could it be that I just give up?"

Wang Yulong looked at the last woman next to him: "Han Yue, do you have any powerful spiritual skills?"

Han Yue said slowly: "No, and I think not to mention us, even C-level spiritists with three-star attacking skills cannot break through this barrier."

Wang Yulong asked, "Why do you say that?"

"Yang Ping and I both studied barriers when we were in the Spirit Academy. The huge barrier that could cover the palace in front of us was definitely not something that ordinary barrier masters could set up.

Whether it is enormous or miniaturized, it is a test of the level of the barrier master.

Look at the attack we just made, this black light curtain didn't even react at all, and the power it could withstand was definitely far beyond our imagination."

Yang Ping nodded: "Han Yue is right."

Wang Yulong curled his lips: "According to the general rules formed by the secret realm, there will be no things that exceed the upper limit of the energy level. If this barrier is far beyond the level D, it should be suppressed or directly destroyed by the world rules, and it will not exist at all."

A layer of spiritual power appeared in Han Yue's hand. He reached out and stroked it on the black light curtain, and could faintly see some spiritual power patterns on the light curtain.

"Usually, this is true. There will be no D-level energy level or above in the D-level secret realm. However, for dead objects like barriers, it is possible to use some methods to avoid this rule."

Han Yue carefully observed the spiritual power pattern on the light curtain, and suddenly her face changed.

"What a terrifying barrier attainment!"

Seeing that Han Yue seemed to have discovered something, Wang Yulong asked quickly: "What's wrong?"

Han Yue pondered for a moment, and then said, "If I guessed correctly, this is not a barrier, but a ten barrier that is exactly the same. It is completely aggregated through barrier superposition technology and greatly enhanced its power, so it can have such a terrifying defense without being suppressed by the secret realm!"

"Tenth floors?" Yang Ping was shocked, "Are you sure?"

"Sure!"

Yang Ping couldn't help but take a deep breath when he heard this.

Wang Yulong said in confusion: "What's wrong with the tenth floor? Is it very powerful?"

Yang Ping glanced at Wang Yulong: "The barrier superposition is very practical and is a compulsory course for barrier masters.

This thing is not as simple as just arranging the two barriers together, such as material distribution, misalignment design, spiritual integration, spiritual power resonance... Too many things need to be considered. For every extra layer is superimposed, the difficulty will increase geometrically.

With my current level, I can complete the second layer superposition of general barriers, and Han Yue can barely stack the three layers. Even our former Hantan mentor can only complete the five layers superposition.

Ten layers of stacking, still such a huge barrier..."

Yang Ping looked at the black light curtain in front of him, and his eyes were shocked.

"It's impossible not to be a master!"

After saying this, Wang Yulong understood it.

After a brief silence, Wang Yulong frowned and said, "If this is the case, then no one can enter this palace? You must know that this is a D-level secret realm, and the highest level of cultivation is only D-level, and no one can break it."

Yang Ping spoke, "What if it weren't for brute force to break it, but there were other ways to pass it?"

Wang Yulong was stunned and immediately thought about it. Does this barrier have a key that can pass?

At this moment, Han Yue suddenly turned around and looked at the way he came.

"Someone is here." Han Yue whispered.

Wang Yulong and Yang Ping looked back and saw that they were young men with a long blue sword hanging on their waists.

"So young, I still look like a student in the Spirit Academy." Wang Yulong glanced at him and withdrew his gaze.

Yang Ping frowned and said, "One person?"

The most secondary creatures in this underground palace are at the D level. Even at the higher level of D level, they may not be able to act alone. Being surrounded by silver creatures is a word of death.

The three-person team also encountered other spiritual soldiers several times along the way. Everyone was a team of at least two people, and they had never seen one person move.

Su Sheng walked not far beside the three of them, looked at the black light curtain blocking the front, and his spiritual power surged into his right hand, clenched his palm into a fist and smashed it down suddenly.

"Bang!"

With a loud bang, the air wave exploded slightly, and Wang Yulong and the other two couldn't help but shrink their pupils.

This punch is so powerful!

However, a punch that even the D-level advanced level could be severely damaged was not moving when it fell on the black light curtain.

Seeing the black light curtain's strong defense ability, Su Sheng's eyes condensed, and he flipped his hand and took out the Jin Gui short sword and slashed it with all his strength.

It was like slashing on reinforced glass, not only did this knife have no effect, but it made Su Sheng's right hand numb.

Su Sheng took two steps back and tried to use spiritual power to attack.

At this time, Yang Ping brought the other two people over and said, "My friend, don't try it. This black light curtain cannot be broken by brute force."

Su Sheng turned his head and asked, "Have you tried it before?"

Yang Ping nodded and smiled: "The strength of this barrier is extraordinary. According to our speculation, even if it is C-level, it is difficult to break. Perhaps the B-level powerhouse has this strength."

"Of course, there seems to be a special way to get in," Yang Ping added.

Wang Yulong said impatiently: "Why are you talking about this with him? After leaving, go to other places to see if you can find a way to get in."

As he said that, he walked out first.

Su Sheng's eyes moved and he smiled at Yang Ping, "So that's the case, thank you for letting me know."

When Yang Ping saw Su Sheng staying in place, he seemed to be unwilling to give up and shook his head slightly.

I also saw that this person seemed to be in good shape, so I kindly reminded him not to waste his efforts.

Since he was still lucky and asked for trouble, he would know after he had worked hard.

Yang Ping didn't say anything else and left with Han Yue and Wang Yulong.

When the three of them walked away, Su Sheng took out the mountain-shaking stick in his hand.

As soon as he held it in his hand, Su Sheng felt a strong traction coming from the palace in front of him.

At the same time, a faint light spread from the mountain-shaking stick to Su Sheng.

"Even C-level can't be broken, so there are no need to worry about too many people entering."

Su Sheng chuckled, and jumped into the black light curtain in one step with a mountain-shaking stick.

Just as the light shield of the mountain shaking stick was formed, Yang Ping, who was walking at the end, seemed to notice it. He turned his head and saw Su Sheng crossing the barrier with one foot.

"He's in!" Yang Ping shouted loudly.

The other two looked back immediately and looked shocked.

"I've really gone in!" Han Yue exclaimed in a low voice.

The strong wind suddenly blew, and Wang Yulong's fat body suddenly burst out with an extremely high speed. He rushed towards Su Sheng, who was relying on a mountain-shaking stick to cross the black light curtain!

"Bang!"

The wind spirit roared everywhere, and Wang Yulong hit the black light curtain. After all, he was one step too late and could only watch Su Sheng sink into the barrier.

Su Sheng turned his head, glanced at Wang Yulong outside the light curtain, and walked into the palace.

Wang Yulong noticed that the mountain-shaking stick was still emitting a faint light in Su Sheng's hand. He endured the impact caused by the high-speed impact and quickly said to Su Sheng: "Wait a moment! Friends, can you take us in with me?"

Su Sheng naturally ignored it and kept walking forward.

Seeing this, Wang Yulong said anxiously: "Don't leave, I'll take me in with the top two-star spiritual skills in four schools?"

"Add eight spiritual cores!"

"Ten!"
To be continued...