Behind the waterfall there was a cave, a stone bridge leading to a dark cave with no light coming through. When Mu Yu passed through the waterfall, Qiao Xue's figure flashed at the entrance of the cave, and she had already entered the cave. He looked under the stone bridge and saw that there was a vertical abyss under the stone bridge, and the bottom of this abyss did not know where it led, and it was strange to hide behind the waterfall.

"It's either a cliff or an abyss, knowing that I'm afraid of heights, and still come to challenge my limits, damn retarded!"

Mu Yu muttered, and with the light from the Shadow Sword, he also passed through the stone bridge. Although he has barely overcome his fear of heights now, he still has some drumming in his heart when he sees the unfathomable below, so he is very fast when he passes through the stone bridge, and he doesn't want to stay on the stone bridge for too long.

The cave seems to have been dug by hand, and the stone walls are very neat, and there seem to be some strange murals on the walls, which are covered with moss and occasionally drop of water. But Mu Yu thought that this was a double heaven, and without the existence of human beings, it was impossible to have such a thing as a mural. When he wiped off the moss, he was stunned to find that the stone walls of the cave were painted with the appearance of some monsters!

Strictly speaking, this is not a demon beast, although they have some characteristics of demon beasts, they have human faces, human hands and human feet, Mu Yu instantly understood what these paintings were.

"Demon people, how can there be demon people in the second heaven?" Mu Yu exclaimed.

Qiao Xue was staring at the mural on the wall not far away, she heard Mu Yu's voice, snorted softly, and said, "What's all the fuss about the existence of the demon clan in the double heavens? In ancient times, the dominant people of the double heaven were the demon clan, and the strength of the human race in the double heaven was not as good as the demon clan. ”

"What? Where are the humans of the Double Heaven going now?" Mu Yu had never heard of such a thing, he had always thought that the Triple Heaven was a concentration of human beings, but he didn't expect that the Double Heaven also lived in humans before.

"Are you really stupid or fake stupid? Why don't you even know this? The double heaven is the world of demon beasts, and the demon beasts become demon clans when they open their spiritual intelligence, and in ancient times, the demon clan ruled the entire double heaven and wiped out all human beings. Qiao Xue said impatiently.

"The demon clan is so ruthless?"

Mu Yu's heart was extremely shocked! The human race of the Double Heaven was wiped out by the demon clan? Before coming to the Second Heaven, everyone told him that the Second Heaven was just a reckless land, there were no human beings to survive, only the most primitive demon beasts, but no one told him that human beings also lived in the Double Heaven before.

"You know everything!"

Mu Yu remembered the teleportation array, thinking about it this way, it seems that the existence of the teleportation array can also be explained, maybe in ancient times, humans could travel back and forth between the two teleportation arrays and the triple heavens, but later the demon clan occupied the double heavens, so the human teleportation array in the double heaven was destroyed, and only the unilateral teleportation array of the triple heaven remained, resulting in the location of their teleportation not being determined.

"Then why haven't you seen the demon clan in the second heaven now?" Mu Yu asked puzzledly, all kinds of strange demon beasts along the way were the Tuyoumeng demon clan.

Qiao Xue glanced at Mu Yu, as if she was hesitating to say it, and then said, "Anyway, something happened, the demon clan was destroyed, and the demon beast could no longer open its spiritual intelligence." ”

"What happened?" Mu Yu was curious, what could lead to the extinction of a race?

"I don't know. Qiao Xue said crisply.

"Cut, don't say pull down. Mu Yu always felt that Qiao Xue was hiding something, and he couldn't say for sure. When he first entered the Second Heaven, because of his tranquil relationship, he also glanced at the people in the Hongchen Gate, but at that time he did not have the existence of Qiao Xue in his impression, of course, this may also be because he didn't see it clearly, but now he is beginning to wonder if Qiao Xue is a person from the Hongchen Gate.

Qiao Xue didn't speak, and continued to walk deeper along the cave. The further he went, a palpitating sensation gradually came, he felt very strange, there seemed to be a sleeping demon beast lurking in the depths of the cave, and some sounds that seemed to be absent came.

"What a familiar taste. Xiao Shuai touched his nose in confusion.

"What's the smell this time?"

"The taste of jelly beans. ”

Mu Yu didn't know whether Xiao Shuai's words were reliable or not, as soon as he came to Erzhongtian, Xiao Shuai kept muttering about the familiar taste, and what exactly Xiao Shuai was always flickering, and he couldn't even understand himself, let alone Mu Yu who was helpless and didn't smell anything.

After walking for a while, I found that I had reached the end, there was a cliff in front of me without any intersection, and the cave did not seem to be particularly large.

"How can there be no way? The entrance should be here. Qiao Xue frowned, stretched out her slender fingers and groped on the wall, knocking on the wall from time to time, her face full of doubt.

"What is the entrance, what is the purpose of your visit?" asked Mu Yu.

Qiao Xue ignored Mu Yu, she groped the whole cave, but still didn't find any clues, which made her very dissatisfied, she seemed to want to find out something from this cave.

Mu Yu shrugged his shoulders, looked up and touched the roof of the cave, and stepped on the rock on the ground, he saw that a stone seemed a little strange, so he moved it away, and there were some strange patterns painted on the ground, and he couldn't see what it represented.

"That's where the jelly bean flavor comes from. Xiao Shuai jumped on top of the patterns, his nose almost touched the ground, and said with joy.

Mu Yu squatted down and carefully examined these patterns, this pattern suddenly looked like graffiti, but when he looked closely, he could find some chaotic and orderly lines, which were distributed very regularly, and it seemed to be a kind of text.

Qiao Xue walked over, looked at the carvings on the ground, and suddenly showed a hint of surprise on her face, and said, "It's an ancient demon!"

"Fallacy, what is the fallacy, what is the fallacy, the gossip confuses the public?" Mu Yu couldn't help but laugh.

Qiao Xue glared at Mu Yu and wiped the dust off the carved lines with her hands, revealing her full face. Needless to say, these words are graffiti heavenly books for Mu Yu, but Qiao Xue changed her direction and read it slowly: "Prison Dan here, win the fish and wait, and the demon array is in all directions." What does this mean?"

Qiao Xue could read the words on it, but she didn't understand the meaning it expressed, which made her a little anxious. She groped for the rocks around the carving, trying to find more clues, but unfortunately there was only such a small piece of the carved pattern around it, and there was no other information.

Mu Yu looked at the direction of these words, his eyes lit up suddenly, and he said loudly: "This is a formation, you can't understand everything?"

"Do you know how to crack it?" Qiao Xue asked eagerly.

Mu Yu felt strange, Qiao Xue knew a lot of things, she could understand strange words, she knew the demon beasts that did not exist in the triple heaven, and she also knew the history of the double heaven, and now when she came to this strange place, she couldn't wait to crack a formation that she had never seen before, which couldn't help but make Mu Yu's doubts deeper.

Qiao Xue can't be a demon beast transformed into a human form, right?

However, Qiao Xue is a human being, Mu Yu is very sure of this. The vitality circulating in Qiao Xue's body is the same as that of humans, Mu Yu saw the demon race of the miserable spider scorpion when he was in Fulong Mountain in the Moyun Mountains, and the vitality on their bodies is as wild as a beast, Qiao Xue does not have that kind of breath.

"Let's see, my old man taught me the knowledge of formations, but I didn't learn very deeply. This formation is very exquisite, let me take a look at it first. Although Mu Yu couldn't read those words, it didn't prevent him from understanding the structure of the formation. He roughly guessed the prototype of the formation, which took him a long time, because Deadwood had been teaching him more poison than formation, so he needed to figure it out, and after about a quarter of an hour he already had a certain number in his mind.

"Okay?" Qiao Xue kept urging from the side.

"Strange, you seem to be very interested here, do you know that there is something under this formation?" Mu Yu couldn't help but want to get something out of Qiao Xue's mouth.

A trace of strangeness appeared on Qiao Xue's face, which did not escape Mu Yu's eyes. The panic in her eyes flickered away, and then she said calmly, "How would I know? The Second Heaven used to be the territory of the demon clan, and I guess this may be the lair of some demon clan. ”

Mu Yu didn't believe Qiao Xue's words, but he didn't say it, he was also very curious, the fact that Erchongtian was the lair of the demon clan had already surprised him, but he didn't expect that there was such a mysterious formation hidden here.

This formation is indeed a little weird, it is not the same as the prototype of the formation that Mu Yu has been in contact with before, this should belong to the formation handed down from ancient times, and the direction of the formation is a little jerky. The ancient formation has been handed down to the present, and many of the formation techniques have been lost, such as the Danding faction's teleportation array connecting the triple heaven and the second heaven, that teleportation array is a formation that is completely contrary to the present, and the people of the triple heaven only know how to enable this formation, but they don't know how to fix it.

Fortunately, the formation in this cave is not much different from the formation that Mu Yu understands, it is not as mysterious as the legend, it is just a simple entrance sealing array, as long as the way to solve the formation is correctly used.

"To activate this formation, you need to know the correct way to activate these formations, do you say that the demon clan is using the same spiritual power as us? I'm not sure if the spiritual power can open it. Mu Yu said.

"The demon clan is also spiritual, yes, you hurry up and try it. Qiao Xue replied.

Mu Yu raised his eyebrows, pondered for a long time, and then looked at these flowing formations seriously. He found a curved entrance from the complex carving, and the spiritual power in his hand surged, and the majestic spiritual power slowly moved towards the carving under his traction, and carefully began to inject into the formation along the flow of the carving. Some of these engravings are redundant, used to indiscriminately fill the number, confusing the person who cracks it, if there is a deviation in the injection of a small amount of spiritual power, it will lead to the failure of the formation to activate.

"Wow!"

A light suddenly lit up from the ground, and then all the carvings of the road emitted a golden light, from the ground straight into the top of the cave, each light was suspended in a complicated demonic text, each demonic text gently rippled, a dementor breath turned around the entire cave, solemn and solemn.

"These demonic words are the twelve words you just said, I think you should know what to do next, right?" Mu Yu couldn't read these demonic words, so he didn't know what to do with these floating words.

Qiao Xue frowned, she explained to Mu Yu what these twelve words represented, but this was not enough, because Mu Yu still couldn't analyze how to organize these twelve words to make the formation work. Qiao Xue was also confused, she only recognized these demon texts, but she didn't know the knowledge of formations, and these twelve didn't give her any clue.

"I think I know how to make this formation work, and if you want to eat the big jelly beans below, you have to pay a little bit of jelly beans. Xiao Shuai stuck out his tongue and licked his lips.