Li Muran walked into the inner hall on the 19th floor of the Heavenly Demon Palace, curious and expectant.

These Middle-earth demon cultivators are deliberately trying to enter here, so there must be amazing secrets hidden here!

However, when Li Muran walked into the hall and looked around, he found that the inner hall was empty and had nothing, and there was not even a stone table or chair.

"What's going on?" Li Muran looked at the demon soul, and the demon soul was also confused.

"Is there any other hall on the last floor of the Heavenly Demon Palace?" Li Muran asked.

"No!" The Demon Soul shook his head, "This inner hall is located on the top of this mountain. It is already the end of the Heavenly Demon Palace, and there is no way ahead."

Li Muran looked around carefully and found that it was indeed as the Demon Soul said, and this was already the deepest hall in the Demon Palace.

"Is it a clever trick?" Li Muran's heart moved. He moved his divine thoughts to the extreme and carefully explored every corner of the hall, but found no clues.

The hall is indeed empty and unobstructed.

"Use your third eye's magical power!" The demon soul suddenly said: "This divine eye should be able to see through the hidden illusion, and at least detect some abnormalities."

"I'm just thinking this!" Li Muran nodded.

With a thought, a pure demonic energy surged into his eyebrows, and a small mouth immediately cracked above his eyebrows, and a pitch-black divine eye appeared.

As soon as the dark pupil came out, the hall immediately became dark, and all the light disappeared without a trace. Even the clever illusion could not reveal any flaws under the light of the dark pupil's eyes.

Li Muran closed his eyes slightly, and used the third eye above his eyebrows to scan the corners of the hall, but still did not see any treasures.

"It's really an empty hall!" Li Muran frowned. He put away his third eye's magical power, and the hall brightened again.

"Are these demon cultivators also fooled? This place is just an empty hall, and they will only go for nothing!" Li Muran murmured.

Although there were no treasures in the hall, Li Muran would not let go of any clues. He carefully looked around - that is, the stone wall of the hall.

The stone walls of the hall are smooth and neat, spotless, but they are also empty, and there are no pictures and pictures engraved.

"No!" The Demon Soul suddenly said: "I clearly remember that there were some seat screens and other objects in this hall. After so many years, it was normal for those who were removed. However, on this stone wall, images of real demons such as the Demon Dragon Blood Phoenix were originally engraved with images of real demons such as the Demon Dragon and Blood Phoenix were wiped out one by one?"

The demon soul said, floating to the stone wall, stretched out a pair of palms that had been transformed from soul power, and gently rubbed the stone wall.

Li Muran felt a little moved when he heard this: "Senior, what do you mean in this hall have been removed or destroyed, not only the objects, but also the patterns on the stone walls have been erased? Why do you do this?"

"Not only that," said the Demon Soul: "The material of this stone wall seems to be different!"

Li Muran was shocked again when he heard this: "Even if the objects can be removed and the patterns can be erased, the materials should not change! Could it be that someone destroyed the entire hall and then rebuilt one on the original site?"

The Demon Soul nodded and said, "I guessed this way too! The material of this stone wall seems ordinary and a bit strange, but what's wrong with it? Even I can't understand it!"

When Li Muran heard this, he also stretched out his palm and pressed it on the stone wall, gently rubbed it, and at the same time injected some magic power into the stone wall, carefully sensing the changes in this magic power.

Suddenly, Li Muran sensed some unusual changes. When he forced a stream of true energy into the stone wall, the stream of true energy quickly faded and disappeared.

"Hey! It's really a bit strange!" Li Muran was shocked and took a step back.

Then, he stretched out his palm and slapped heavily at the stone wall.

Although this palm does not contain much magic power, Li Muran has achieved success in body refining, and his body is full of divine power. With this palm, he can crush the hard rocks and break through this seemingly inconspicuous stone wall.

However, when Li Muran hit the stone wall with his palm, a dazzling light suddenly bounced out from the stone wall, which not only dissolved Li Muran's palm power, but also shocked Li Muran to retreat a few steps in a row.

Li Muran was shocked. The rebound power that the stone wall had just stimulated was extremely strong, and it was not at all under the full blown attack of a true mid-stage cultivator!

Li Muran used the Soul-Chasing Sword and slashed another sword towards the stone wall from afar.

Before the sword light could be cut to the stone wall, it immediately rebounded by the stone wall. Fortunately, Li Muran was prepared and used a black hole technique in front of him to block the rebounding sword light.

"What treasure is this stone wall? It's so powerful! The stronger the attack, the greater the power of the rebound. Moreover, the stone wall obviously has more strength!" Li Muran said in surprise.

Li Muran did not continue to attack, and the stone wall gradually restrained its spiritual light, just like an ordinary stone wall, as if nothing had happened.

When the demon soul saw this scene, his face changed drastically. He murmured: "If I read it correctly, this should be the legendary Tiangang Palace!"

"Tiangang Palace? The most solid rumored thing, even immortals are trapped and cannot escape from the restricted space?" Li Muran was shocked. He had seen records about the Tiangang Palace in a classic book in Langhuan Cave Heaven, but there were only a few words. The main meaning was that the Tiangang Palace is extremely clever and can seal everything. However, this technique has long been lost.

"I didn't expect you to hear about Tiangang Hall, too!" said the Demon Soul: "The rumors are so exaggerated, but Tiangang Hall is indeed extremely powerful in the forbidden sealing power. Even if seven or eight late-stage cultivators of the true body join forces, they can't even break the Tiangang Hall! The reason why I know Tiangang Hall is because during the spiritual demon battle, I once saw a spiritual cultivator with extremely high cultivation possess such magical powers. A treasure like Tiangang Hall is not something that can be owned by the lower realm, because there is no material for refining Tiangang Hall. The Tiangang Hall in front of me must also be here from the spiritual world!"

"And this Tiangang Hall has already stimulated the sealing power, and it seems to be sealing something. However, there is nothing in this Tiangang Hall. What is it sealing?" The demon soul said in confusion.

Li Muran was shocked when he heard this and asked, "The seal of Tiangang Palace is so powerful, and we can't leave if we break in rashly?"

The demon soul smiled and said, "Don't worry about this! The Tiangang Palace is very mysterious and can only seal specific things. You and I are not the target of the Tiangang Palace seal, so I can go here freely. Anyway, with your and my strength, there is no threat to this Tiangang Palace at all!"

Li Muran tried to walk out of the hall, but it was indeed not blocked.

He returned to the hall with a look of doubt on his face.

The 19th floor of the Heavenly Demon Palace has been replaced by a Tiangang Hall with great origin. There is nothing in the Tiangang Hall, so I wonder what the mystery is there!

Li Muran carefully investigated every corner of the hall again. Because the investigation was very meticulous, it took a lot of time.

But he still got nothing!

"There is not much time!" Li Muran said in his heart: "The time that Fairy Qianhuan can delay is limited. She explained in advance that she will only give me half a day. Since she can't figure out what the secret of this Tiangang Palace has, it's better to hide first."

Li Muran left this hall and used his hidden magical powers to hide behind a huge rock hundreds of feet away.

He was quite confident in his concealment technique, and it was a little far from the hall. After the demon cultivators came here, their attention would be attracted by the Tiangang Hall, making it difficult to detect his existence.

Not long after, a loud noise came from the eighteenth floor, and then a ball of fire rose into the sky.

After a while, a lot of powerful auras approached here one after another.

Soon, the late-stage true body cultivators of the five major demon sects in the Middle Earth, as well as seven or eight middle-stage true body demon cultivators, rushed here and saw the hall.

The "Xiao Fairy" transformed by Fairy Qianhuan also followed these demon cultivators, but they kept a distance of dozens of feet intentionally or unintentionally, and were still looking around, as if confirming Li Muran's location.

Everyone walked to the hall and stopped. The Ming Zhenren from the Netherworld Sect took out a soul-recovering scroll from his arms, with a fierce ghost on it.

Zhenren Ming sacrificed a wisp of pure demonic energy and penetrated into the scroll. The scroll suddenly became a thrill of demonic energy. The evil ghost actually turned into a ball of black gas and flew out of the scroll.

When Li Muran saw this scene from afar, he suddenly felt a stern: "It's really that evil ghost!"

"Please take a look, but it's the hall in front of you?" Zhenren Ming asked the evil ghost.

The evil ghost flew to the stone wall of the hall, tried to touch the stone wall with the ghost body, and then immediately dodged, as if he was very afraid of it.

But it was just such a simple try, the evil ghost nodded repeatedly and said, "Very good, you did a good job! It's here!"

"Start quickly!" said the ghost with a grin, as if he couldn't wait.

The evil ghost glanced at the demon cultivators, was suddenly stunned, then looked at Fairy Qianhuan and said, "Why is there an outsider present?"

Xun Laomo said: "This woman is Fairy Xiao. She is the one who helped us enter the Nanyang realm and break the 18th floor of the ban to come here. She is not considered an outsider."

The evil ghost nodded and said, "Okay, don't just make trouble!"

However, the evil ghost secretly said something to the old demon Xun through his divine thoughts. The old demon Xun nodded slightly and replied in a secret voice. The evil ghost then relaxed.

"But," Zhenren Ming frowned and said, "You are really not wrong? There is nothing here! Fellow Daoist Helian, your divine consciousness is powerful, have you discovered anything?"

The old demon Helian shook his head repeatedly and said, "I have seen nothing! This is clearly an empty hall!"

The evil ghost laughed proudly and said, "Haha, if you can see it, how could it last until today!"
Chapter completed!