At Ludwig's suggestion, everyone began to try to use their superpowers, while using their hands to slap the text in the corner of the wall in the order of the text in the pattern below the middle. However, their attempts were useless, and the words still did not move.

At the beginning, they were not discouraged and guessed whether there was something wrong with their ability to use, so they changed their skills to use ability, but the line of text was still the same. They tried several ways, but it was still fruitless.

Some people began to lose patience and thought that their current behavior was ridiculous. They clearly saw that the reliefs and stone walls were completely integrated, and there was no door-like building around them, but they listened to others' words and did these unreasonable things, so they all sat back to their original place.

Ludwig did not give up, but instead fell into it like a fascination, constantly allowing several other psychics who still did not give up to experiment in a different way.

Of course, Victor and the other two were among those who did not give up. They knew very well the detailed method of opening the secret door here. If they took the lead in the operation, they would be able to open the secret door for the first time, but they could not do that now. Otherwise, they would not be able to explain why they knew this method of opening the door.

After trying a few more times, even Ludwig's face showed disappointment. When he wanted to give up, Ye Lina just said and reminded: "Can the password lock we chose not correspond to this picture?"

"Not corresponding?" Ludwig and Abraham were stunned for a moment, not coming back to their senses.

"There are thirty-six patterns here, and there are eight password locks," Ye Lina said while pointing to the patterns and text on the wall, saying: "If you assign them, then four secret door password locks should correspond to four pictures, and four secret door password locks correspond to five pictures. We have always experimented with this picture on this line of password locks just now. If this picture corresponds to other password locks, then no matter how we experiment, there will be no reaction."

"Yes! Yes! We did get it wrong." Hearing Yelina's reminder, Ludwig and Abraham quickly realized their mistakes, and the others seemed to have regained hope. They almost didn't need Ludwig's request, so they took the initiative to separate around and tried to use their supernatural powers while pressing those characters.

"Look!" Soon what everyone expected happened. Roger, known as the human radar, chose a text at the corner of the wall and pressed it. A faint light shone on the strange patterned font on the wall near him. After these lights were connected, they formed the shape of an arch. However, the time when the arch was formed was very short, everyone just left a light and shadow in their eyes and disappeared.

Although the secret door was not formed, everyone was not disappointed at all, because the arch vision on the wall was the best evidence to prove Ludwig's guess. These characters indeed represent the password lock for opening the secret door, and they had hope of leaving here.

Everyone gathered in front of the line of secret door password locks with anticipation, and each went up to use their own abilities while trying to press the text. Except for Ludwig, a psychic person who was completely assisted, who could not react to the password lock, everyone else could make the light and shadow secret door appear. However, the time when the secret door appeared was long and short, just like Roger, it was only a blink of an eye, and the long light and power of Abraham and Victor could maintain the secret door to appear for several minutes. Even after the secret door appeared, a vortex similar to the star gate appeared in the middle. Unfortunately, the star gate vortex was just an illusion, and the one I put my hand on it was still a hard wall.

"It should have nothing to do with strength," Abraham opened the secret door for the third time, strengthened the transmission of light in his hand, and exerted his supernatural powers to the extreme. However, he saw that the star gate vortex in the middle of the secret door was always empty and unreal, without any change, so he retracted his power in disappointment and asked Ludwig in confusion: "Are there any other tricks we haven't discovered?"

"There should be no other tricks." Ludwig shook his head and said, "From the architectural layout here, before it becomes a ruin, it should be a place where people often come and go. It is impossible to set up a door like this that requires a very complicated method to open! In fact, I think this method of opening is a bit complicated now. According to my idea," he stood in front of the secret door that just appeared, put his hand on the wall, and said, "It should be just necessary to stand here and think about it in his mind..."

Before Ludwig could finish his words, the wall he touched with his hand suddenly appeared as he had received the arch, and the star gate vortex in the middle of the arch became extremely real, and directly generated a suction force towards Ludwig, pulling it in instantly.

All this happened very suddenly, and it ended in just a blink of an eye. Many people didn't even realize what was going on, and they just saw Ludwig disappearing in front of them, and their eyes were not even able to capture the vortex of the secret door that just appeared on the wall.

When everyone was surprised and panicked by Ludwig's disappearance, Xu Changqing's mind had already entered the inner world of the underground palace that Ludwig had entered through the trajectory of the magic power of the Qiankun here, guided by the blood and energy of Ludwig's body.

This underground palace is in the shape of an inverted pyramid. Although its surface is strange and mysterious, it still retains a structure similar to a building. Whether it is the giant wall passage where Xu Changqing is or the underground secret room where Victor and others are, it does not transcend the ordinary people's understanding of architecture.

However, after entering the interior, everything has changed. The place where Ludwig stood now was a big tree full of fruits. The size of this big tree is unimaginable to the world. A single leaf can match a playground that can accommodate thousands of people, not to mention that there are countless fruits hanging on the tree that are as big as a hill.

Now this big tree is suspended in a starry sky, and Ludwig can see the scene of starlight outside through the gaps in the surrounding branches and leaves. The reason why he thinks this big tree is suspended in the air is because according to his physical understanding, such a big tree will definitely not grow on the earth. Otherwise, the pressure of the tree will not only cause huge damage to the earth, but even the tree itself may break and collapse under the pressure of its own weight.

However, he didn't think that the roots and stems of the big tree were empty, because on this big tree, he felt the existence of gravity. Although it was much lighter than the gravity on the earth, gravity still surrounds the surroundings. So he judged that the big tree that seemed to be the legendary World Tree must have an asteroid with a core. With strong curiosity, he walked to the leaves and watched down along the edge. Unfortunately, the branches and leaves below were too dense, completely blocking their sight and unable to see the situation below.

In comparison, Ludwig's blind guess like a blind man touching an elephant, Xu Changqing had already integrated his mind into this small world created by the Great World of the Great World in his sleeve, and kept all the scenes here in his heart.

If he could know what Ludwig thought, he would inevitably agree with Ludwig's keen sense and bold guesses. Due to Ludwig's knowledge and vision limitations, it would be great to be able to guess so many things.

This is not the kind of universe void Ludwig thought, but it is not much different. The people who created this place used great magic power to build it into a void, and even imitated the almost chaotic chaotic wind through the magic power of the Shuli Qiankun Dafa. Unless someone can have a very good understanding of the Shuli Qiankun Dafa like Xu Changqing, no matter whether they enter this world or observe this world outside, they will think that this is a fragment of void.

In this void, the huge trees floating in the air are naturally extremely eye-catching. Even Xu Changqing felt extremely shocked by the huge tree. If he had compared it, the branches and leaves of this tree were no longer much smaller than the moon. In addition, Xu Changqing could also feel that there was a hint of the aura of the prehistoric wood on this tree, but compared with the aura of the building, the dark yin energy emitted from the whole body of the tree is the original aura of the big tree.

"Yin Wood?" Xu Changqing, who had entered the underworld, was not unfamiliar with this special wood spirit Yin Qi. When he saw the main body of the tree, he couldn't help but think of a special tree growing in the underworld.

Although the dead energy in the underworld and the yin energy are surrounded by it, it is not suitable for any living creature to survive, there are still some special creatures that adapt to this environment and form a special living creature in the underworld, and Yin wood is one of them.

This underworld plant is used to make magic weapons of the ghost clan, and its value is nothing in the underworld. However, in the sun, even in the prehistoric period, it is a rare spiritual object.

However, what puzzled Xu Changqing was that the reminder of Yin Wood was usually not big, and the largest Yin Wood was only two or three meters high, and most Yin Wood was not as good as the height of the bushes. In addition, Yin Wood was also very special in shape, skinny and bony, looking very ghostly, and would never grow leaves, nor fruits.

However, when Xu Changqing developed a strong curiosity about this tree as huge as a world tree, two more strange things immediately attracted his attention. These two strange things seemed incredible to him. One was that he discovered that there were humanoid creatures living in this big tree, and judging from its architecture and clothing, they obviously had a great civilization. In addition, the second strange thing was that the roots of this big tree were actually wrapped in a vortex of reincarnation, and the roots of the tree even plunged into the vortex of reincarnation and merged into the vortex of reincarnation.
Chapter completed!