As for the Cheng Clan's treasury, the items there did not seem to be of much use to Lu Yin. If Lu Yin ultimately destroyed the Cheng Clan and took away the items in the treasury, then that would be even better. Cheng Tian's reputation would only worsen.
However, no matter how much he considered, he never considered that Lu Yin would be able to traverse two regions and kill Duke Cheng. Furthermore, Duke Cheng had even used his words to force Cheng Tian to commit suicide. Nothing could be blamed on Lu Yin.
As for the Withering Engraving technique, it had indeed disappeared along with Hundred-Kill Tian and Duke Cheng's deaths. After all, aside from them, everyone else who knew about the secret of the Withering Engraving technique had died at Duke Cheng's hands. However, Lu Yin knew.
Before Hundred-Kill Tian had died, Lu Yin had seen it through karma.
The Withering Engraving technique was a material called the Void Wall. Now, as long as he could find the Void Wall, he would be able to reproduce the Withering Engraving technique.
The problem was, where was the Void Wall?
He did not see it in Hundred-Kill Tian's karma. If Hundred-Kill Tian had not experienced some karma himself, then he would not have seen it.
However, there was no such thing in the treasury.
It was impossible for Hundred-Kill Tian to have left the Void Wall in the treasury.
Could it be in Duke Cheng's hands?
Lu Yin had his suspicions as he took all of the resources from the Cheng Clan's treasury. There were three scabs, a hundred trillion spirit seeds, seventy-five cultivation spirits, and a secret scroll from the Cheng Clan.
The scabs and spirit seeds were not surprising, as seventy-five cultivation spirits were much less than the Spring and Autumn Scroll. However, this was normal.
The Cheng Clan had been passed down since ancient times, and they had only left behind this number of powerful cultivation spirits. These cultivation spirits should all be at the Progenitor realm or above.
Lu Yin took away all of the other materials, as anything that the Cheng Clan had collected was definitely not simple.
Finally, Lu Yin picked up the Cheng Clan's secret scroll and began to read it.
He opened the scroll, and a screen rose into the sky. It was an image of someone unlocking a sourcebox.
A few days later, Lu Yin rubbed his head tiredly. The Cheng Clan's secret scroll had more than a hundred pages, and he had read almost half of it over the past few days. It was all about unlocking sourceboxes, but it was not about teaching others how to unlock them. Instead, it was about the strange objects that appeared after the sourceboxes were unlocked.
There were many sourceboxes hidden beneath the yellow sands of Western Region, and many of them originated from the Nine Firmaments Universe itself. However, there were also quite a few that originated from other universes and the Core of Space that had been destroyed.
For example, Lu Yin had seen quite a few people unlock sourceboxes along the way from Senluo City to Hidden Sky City. This was very normal in the Western Domain, and even in the other three domains, including Yu Jiuxiao, there were quite a few people unlocking sourceboxes.
However, what was recorded in the book were the things that had caused a sensation when they were unlocked. Some of them had indeed caused a stir in the Western Regions, but most of them were only known to the Cheng family and were recorded in secret.
Lu Yin saw many strange objects that had been unlocked from the sourcebox, and almost all of them belonged to the outer universe. Most of these strange objects had either been destroyed by the Cheng Shi's research or had been burned. It was obvious that the Cheng Shi knew what these strange objects were, and there were still some strange objects that were hidden within the treasury.
This was one of the resources that Lu Yin had just taken.
He sensed the Qi from another universe, but he didn't care. There were many Qi from another universe in the Nine Clouds Universe.
What made Lu Yin's heart sink was that he saw the remains of a hive.
That's right, the Cheng Shi's secret scroll had recorded a process of unlocking a hive. It was exactly the same as the hive in the Tian Yuan Universe, except that this one had lost its function and was now just a wreckage.
However, the appearance of this hive made Lu Yin realize that the distance between two universes seemed large, but it wasn't.
Since the hive's civilization could come into contact with the Nine Clouds Universe in this way, it meant that the two civilizations could come into contact.
The hive's civilization had already come into contact with the Tian Yuan Universe, which meant that this civilization had been circling around the Nine Clouds Universe and the other three universes.
If that was the case, why hadn't the Nine Clouds Universe destroyed the hive's civilization?
Was it because they hadn't found it, or did they lack the ability to do so?
Lu Yin crushed the hive's wreckage, which was also in the Cheng Shi's collection. The Cheng Shi couldn't understand it.
He paused for a moment before continuing to look.
The Cheng Shi's ability to record these lockbreaking processes meant that the items that had been unlocked were unknown to the Cheng Shi, and so were Lu Yin.
He looked through them one by one, occasionally taking out items from the Cheng Shi's treasury to compare. He was thinking about the Yu and Jue families.
Of the three great families of Hidden Sky City, the Cheng Shi was the least proficient in lockbreaking, while the Yu family was the most proficient.
The Yu family definitely had something like the Cheng Shi's secret scroll.
Soon, Lu Yin reached the last page of the Cheng Shi's secret scroll, but he couldn't open it. He frowned as he saw an extremely small sourcebox array.
A sourcebox array that sealed the last page was definitely extremely important.
Lu Yin easily crushed the array and opened the last page.
A screen rose into the sky, revealing a brightly lit courtyard. It was still a lockbreaking process.
Compared to the previous recordings, this scene was much brighter, and he could vaguely see people walking around. He could also hear children's laughter. Clearly, the lockbreaking process wasn't that serious.
The sourcebox that was being unlocked was two meters long and half a meter wide. It looked like a rock.
The lockbreaker was a middle-aged man, and he smiled as he spoke to someone behind him.
Only images appeared on the screen, but there was no sound.
It looked like he was teaching.
Soon, the lockbreaking process began. The middle-aged man's speed was very fast, and the sourcebox wasn't very large. The danger of the sourcebox was also nonexistent. Perhaps this was why this person had chosen this sourcebox to teach.
This lockbreaking scene didn't speed up, unlike the previous recordings that only showed the end.
This scene appeared from the beginning to the end.
Over the course of two days, the middle-aged man had reached the final step of unlocking the sourcebox.
At this moment, the sourcebox was shaped like a human skeleton, and there was a layer of dirt on its surface. It looked just like a skeleton.
Ordinary people would find it horrifying, but cultivators didn't care. Bones were all too normal.
The sun was shining brightly, and the weather was good. White clouds floated on the screen, making it look like a painting.
When the lockbreaking process was completed, the dusty sourcebox revealed its original appearance. It really was a skeleton, a human skeleton.
The middle-aged man smiled as he explained.
Behind him, the skeleton moved.
Lu Yin's eyes narrowed as he stared at the scene. The skeleton moved?
Furthermore, it was a skeleton that had been unlocked. Lu Yin suddenly thought of the Eternal Bone Implant.
First, it was the fingers, then the toes. The middle-aged man was stunned, as if he had heard something. He turned around in confusion, only to see the skeleton raise its hand and drop it. The middle-aged man's body stiffened, and he stood in place without moving. The skeleton stood up and then disappeared.
The sky was still beautiful, and the scenery was still the same as before. However, this time, there were blood red petals and a skeleton.
The skeleton returned and laid the middle-aged man down. Lu Yin saw that the middle-aged man's body had been split in two, but there was no blood flowing out.
The skeleton tore apart the man's skin and took it off like clothes. It then put it on and used a thread to twist it needle by needle. It then walked out of the courtyard and left.
The scene ended there.
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Lu Yin felt a chill run down his spine, as the scene that he had just seen had made him feel horrified.
It was normal for the cultivation world to have power over life and death, but that scene had been too calm. It was as if the skeleton had been prepared, or rather, it was instinctive.
He had instinctively killed those people, put on the middle-aged man's skin, and left.
Everything had been instinctive.
But it was this instinct that made Lu Yin shiver from the bottom of his heart.
He couldn't see the skeleton's strength through this scene, but the feeling was very clear.
How had the Cheng Shi obtained this scene?
Lu Yin thought about it and then opened the last page to look at it again. He wanted to see if the skeleton was the same as the Eternal Bone Implant.
The second time he looked at it, he still felt horrified.
Then he looked at it a third time.
Suddenly, the scene in front of Lu Yin changed. He saw not just one skeleton, but an overwhelming number of skeletons standing on the black plaza. Dark clouds covered the sky and blocked the sun. He saw an incomparably huge finger bone descending and piercing a hole in the sky. He saw endless darkness beyond the hole. There were no stars, as if it was just an inch away.
Lu Yin took a few steps back and waved his hand, but there was nothing in front of him.
The scene on the screen was still the same, but where had that scene come from?
Beads of sweat dripped down Lu Yin's forehead. That scene made him feel uneasy and dazed. He hadn't felt this way in a long time. It was the feeling of facing a life and death crisis, and it came from that scene that had appeared out of nowhere. That scene?
Thought, it was the thought.
Lu Yin realized that the scene had come from Yue Ya's thought. Did Yue Ya see it?
No, it was the thought itself that had seen it.
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He saw the black plaza and the incomparably huge finger bone.
It was that thought, that's right.
Qing Lian Yu said that the thought itself belonged to the Eternal Realm powerhouse who had died and wanted to use Yue Ya to resurrect. Now that the thought had been merged with him, he thought that the original memory of the thought had completely disappeared. He didn't expect it to appear again.
It was because of this scene that led to the memory of the thought.
The skeleton in the scene was the same as the skeleton in the memory of the thought.
Lu Yin swallowed his saliva. Then, when he saw the memory of the thought, he felt uneasy. Did it represent the owner of the thought?
The Eternal Realm powerhouse who had died?
If so, did it mean that the Eternal Realm powerhouse was in a daze and uneasy? Did it mean that the Eternal Realm powerhouse had died in the hands of the skeleton?
Lu Yin's back was cold, and his palms were sweaty. He had a hunch that he seemed to have seen an incredible scene.
He put away the Cheng Clan's secret scroll and walked out. His consciousness swept across Cang Tian City and found a person.
In a corner of Cang Tian City, an old man was panting heavily. He forced himself to calm down and walked out of the alley. He held a sword in one hand and spread out the other. There were dozens of virtual shadows in his hand, all of which were selling things.
This scene was not unfamiliar in Cang Tian City, or in the other cultivator cities of the Ninth Heaven Universe. The cultivators who sold external resources were all projected with virtual shadows to prevent them from being robbed directly.
The old man walked on the street, and behind him was a towering mountain.
A mountain was just a steep slope in Cang Tian City. It extended up and down and couldn't spread to another street. Cang Tian City was very big. For a huge force like Lingbao Chamber of Commerce, a shop could occupy a mountain range, and a mountain range could hide an ocean.
Ordinary people couldn't walk out of a street in their lifetime, but cultivators were different, especially the powerful ones. They could see another street directly.
Even for weak cultivators, there were transportation tools for cultivators to use in Hidden Sky City. It was convenient for transportation and movement.