Mo Wuji inserted the crescent-shaped key in his hand into the keyhole of the red circular door. With a soft click, the red crescent door opened automatically. Before the crescent key could fall to the ground, Mo Wuji directly grabbed the key in his hand.

Before him was a small courtyard with a small patch of barren land in the middle. However, no spiritual plants were alive in the barren land, as if it had been abandoned for a long time. In the middle of the barren land was a stone path, leading to a pavilion, behind which was a house.

Mo Wuji was about to go over and take a look when the door behind him automatically closed again. Seeing that there was still a circular keyhole behind the door, Mo Wuji didn't mind. As long as he could open the door, it was fine.

Mo Wuji walked along the stone path in the middle of the barren land and arrived at the pavilion. After entering the pavilion, Mo Wuji discovered that there was a corpse lying on the edge of the pavilion.

Unlike the corpses that had disappeared in the prisons, this corpse was still relatively intact. The bones emitted a faint golden light, indicating that the corpse's cultivation was not simple. Perhaps this corpse was a powerhouse above the Earth Immortal.

Mo Wuji bent down and carefully examined the corpse. There were no rings or treasures on the corpse.

Carefully turning the corpse over, Mo Wuji discovered that the bones on the back of the corpse were all blackened. It was estimated that someone had ambushed him from behind with a knife, and that the knife was also poisoned.

Bypassing the corpse, Mo Wuji carefully walked into the house.

Compared to the prisons outside, this house was much larger. It seemed to have two rooms and a reception room.

In the reception room, there was a tea table with a teapot and several jade cups on it. Judging from the appearance, it was obvious that no one had touched them for many years.

The door to the first room was ajar. Mo Wuji's spiritual sense swept over and discovered that there seemed to be another corpse behind the door.

Finding no danger, Mo Wuji quickly walked over and opened the door.

Behind the door was indeed a corpse. The corpse was face down, and the brocade robe was still not rotten. In his hand, he was still holding a pen, but only the shaft remained. The bristles on the top had all fallen off.

Mo Wuji turned the corpse over again, and the bone between this corpse's eyebrows was completely black. It was obvious that this person and the one who died outside were killed by the same person, and with the same poisoned dagger.

The pen in this person's hand was obviously a real writing pen, not a magic weapon. Plus, his fatal wound was actually between his eyebrows, which meant that this person was not prepared for the person opposite him to kill him.

There were only two possibilities for being unprepared. One was that the two had a very good relationship and trusted each other. The second was that the other party's status was too different from his own. In the deceased's eyes, the other party would not dare to attack him at all.

Just like the person outside, this guy's ring was also gone.

Mo Wuji was a little speechless. They really searched cleanly. If these two rings were still there, the things inside might be stronger than an Earth Immortal's ring.

Mo Wuji began to look around the room. The room was about twenty square meters. There were many books around the room, and these books were arranged very neatly.

In the corner of the room, there was a writing desk with some manuscripts on it. On one side of the manuscript was a section of chain. Mo Wuji slowly walked over, worried that the manuscripts would be destroyed by the breeze he caused.

After Mo Wuji walked closer and pinched these manuscripts with his hand, he realized that these papers were made of some unknown material, and they were extremely tough, without any signs of breaking.

Mo Wuji picked up the chain on the side and immediately recognized it. This chain was exactly the same as the chain he had seen in the prison before.

Could it be that a prisoner was brought here? Then the prisoner suddenly rose up and killed the managers here?

This explanation was the most likely, but Mo Wuji thought it was the most unlikely. Even if the prisoner was brought in, the prison managers could not possibly not be on guard against the prisoner at all, and even allow him to stab a dagger into his eyebrows.

Mo Wuji picked up the top piece of paper on the desk. It contained some simple poems. It seemed that this manager was also a poetry enthusiast. The second and third pieces of paper drew some messy things, and Mo Wuji couldn't figure out what they were.

Putting down these papers, Mo Wuji bent down and picked up a piece of paper from the ground. Mo Wuji was immediately attracted by the contents of this paper.

"Meng Yin San, Red Thunder Star Earth-attribute cultivator, Yongying Calendar 845th Session 3111th Year, 6th Month, 14th Day, advanced to Celestial Immortal. Honest and simple in nature, five-star genius. From cultivation to advancing to Celestial Immortal, it took one hundred and ninety-six years, nine months, and seventeen days. Entered the Yongying Eleventh Prison, Half-Moon Prison Room Thirty-One on the same day.

During the Half-Moon Prison period, Meng Yin San performed extremely well. After observation, there were no signs of irritability or rebellious mentality. Yongying Calendar 845th Session 3224th Year, 7th Month, 2nd Day, he concluded a blood oath, willing to forever be..."

It stopped abruptly here, as if something sudden had happened afterward.

Mo Wuji pinched the paper in his hand, looking at the desk and the seat in front of him. At this moment, a scene appeared in his mind. The killed prison supervisor was sitting in a chair, while Meng Yin San was standing across a desk from him.

It seemed that Meng Yin San was performing very well, and had even made a blood oath to pledge allegiance to a certain organization, so this prison supervisor also trusted Meng Yin San very much. He even helped Meng Yin San open the chains, casually placing the chains on the desk, while starting to record some information.

Just as this supervisor was using a pen to record Meng Yin San's brief process, Meng Yin San suddenly attacked and killed the supervisor.

Perhaps the process was much more dangerous and complicated than he had guessed, but Mo Wuji finally had some understanding of this Half-Moon Prison.

First of all, to be imprisoned in Half-Moon Prison, you must be a top-level genius. Otherwise, you don't even have the qualifications to be imprisoned. As for what level Meng Yin San's five-star genius belonged to, Mo Wuji was not very clear. This guy was able to advance to the Celestial Immortal realm in more than one hundred and ninety years, so he was definitely not a simple person.

This guy actually stayed honestly under the supervision of the Half-Moon Prison jailer for more than one hundred years before suddenly attacking. This showed how tolerant this guy was. As for being honest and simple in nature, Mo Wuji absolutely didn't believe it. Regardless of his position, Meng Yin San was able to be so tolerant, and then suddenly kill the jailer, how could he be an honest person?

Moreover, being able to manage so many genius cultivators in Half-Moon Prison, it would be strange if he was weak himself. It was very likely that Meng Yin San used more than one hundred years to secretly cultivate and calculate the timing, and then suddenly attacked when concluding the blood oath.

Who exactly was the owner of this Half-Moon Prison, who actually imprisoned so many genius Celestial Immortal cultivators? As for those Celestial Immortal cultivators who were not geniuses, what were their results?

Mo Wuji thought of Xu Chihuang's previous mention of shattering the void. He didn't know if he was talking about the situation of Earth Immortals breaking through to Celestial Immortals.

If that was really the case, then after shattering the void and becoming a Celestial Immortal, there was actually a Half-Moon Prison waiting. No, it should be said that Half-Moon Prison was just one of many prisons. Moreover, to enter Half-Moon Prison, you must be a top-level genius.

Mo Wuji walked to a nearby bookshelf and randomly opened a book. The first page read, "Liu Chengyi, Ring Abyss Star Metal-attribute cultivator, six-star genius. Yongying Calendar 844th Session 8721st Year, 11th Month, 21st Day, advanced to Celestial Immortal, and entered Yongying Eleventh Prison, Half-Moon Prison Room Nineteen on the same day. Stubborn in nature..."

The rest were more detailed reports, even recording which days he tried to cultivate.

Putting this book down, Mo Wuji took out the second book. The contents of the first page were basically the same, "Jin Dai, Mo Ji Star Water-attribute cultivator, five-star genius. Yongying Calendar 845th Session 321st Year, 1st Month, 13th Day, advanced to Celestial Immortal, and entered Yongying Eleventh Prison the next day. Dislikes speaking, died on September 24th of the same year..."

He flipped through more than a dozen books in a row, and they were all such records. If the time of death was very short, then the book would be thinner. If the time of death was long, then the book would be thicker.

There were so many books here, obviously many people had died, and then new people had been added.

"Ye Li, Earth Star Wood-attribute cultivator, four-star genius. Yongying Calendar 844th Session 7690th Year, 4th Month, 3rd Day, advanced to Celestial Immortal, and entered Yongying Eleventh Prison on the same day. Half-Moon Prison Room Eighty-Three, mischievous in nature..."

Mo Wuji's heart skipped a beat when he saw this booklet. Could Earth Star be Earth? Unfortunately, the rest of the records were Ye Li's detailed situation in Half-Moon Prison, and didn't involve Earth at all. Mo Wuji also guessed that it was unlikely to be Earth. Earth lacked spiritual energy, and even if there were cultivation techniques, it would be difficult to cultivate, let alone break through and ascend.

Although these books were not treasures, Mo Wuji raised his hand and rolled them all into his ring. There were many details inside, which he could slowly read when he had time in the future.

After putting away the half section of chain, Mo Wuji then exited this room and entered another room.

As soon as Mo Wuji stepped into the doorway of the room, a white light lit up in the middle of the room. At this moment, Mo Wuji realized that this room was actually the central hub. Mo Wuji was proficient in formations, and he could tell at a glance that someone was refining this place.

It was obvious that this Half-Moon Prison was still a magic weapon, and it was estimated to be something that surpassed a top-grade spiritual artifact. It was a pity that the location for refining the Half-Moon Prison was not in his place. He didn't know which lucky bastard had found the corner to refine the Half-Moon Prison.

No matter who it was, they would not be his friend. Once the other party refined the Half-Moon Prison, then he would be finished. Mo Wuji's first reaction was to immediately escape.

Then he thought that if he escaped from the entrance of Half-Moon Prison now, it would be the same as sending himself to his death.

Fortunately, Mo Wuji was also proficient in some formation arts. He quickly saw that the formation engraved in this central hub had a pattern to follow. Although he could not prevent the other party from refining the Half-Moon Prison, he could transmit the news of the other party refining the Half-Moon Prison to everyone in the Half-Moon Prison.

There were so many people in the Half-Moon Prison, and this Half-Moon Prison could not be refined in a day or two. Once the guy who was secretly refining the Half-Moon Prison was found, it would be a dead end.