Sun Ruidao:

"There are only three of you in the whole building? I don't believe it. What's going on upstairs?"

Wanxing's reply:

"The messengers upstairs are also on the second floor. After delivering messages three times, you will appear on the second floor next time and become the second-floor messenger. Similarly, the second-floor messenger will go to the third floor after delivering messages three times, and so on."

His eyes flickered for a moment, and he said:

"I heard this from other people, but I'm not sure if it's true."

He dared not speak too definitively, lest he be mistaken for deceiving them and be killed without knowing why.

Cao Ya looked up at the building.

In his perception, those floors were illusions; only the first floor and the lobby were real.

Moreover, faint, subtle fluctuations could be felt in several layers of space.

Clearly, the second, third, fourth, and fifth floors are located in other supernatural spaces.

Layer upon layer, intertwined and twisted.

It's like a ghost realm within a ghost realm.

Unfortunately, I can only sense it now, and I can't break through that spatial barrier yet... If it were a three-star level, I could probably forcefully break through space and enter a higher floor, right?

Cao Ya gave a wry smile. Three-star level, how could it be broken through so easily?

Yang Jian was also observing, and he discovered the same thing.

Cao Ya asked:

"Could we force our way in using the Ghost Domain?"

Yang Jian's expression was somewhat solemn, and he shook his head, saying:

“No! This place is filled with layers of ghostly realms. I dare not invade it casually, because I might not just end up on the second or third floor, but get lost in the ghostly realms. The safest way is to let myself be pulled into the second floor.”

Cao Ya whispered:

"The person who built this ghost post office is truly remarkable; they've plugged all the loopholes. I suspect that the selection mechanism for this messenger must have some purpose. Is it simply to revive vengeful ghosts? It can't be that simple! This place was clearly built by humans; they shouldn't be so ruthless."

I looked up at the illusion on the fifth floor:

"All the secrets probably lie on the fifth floor."

Yang Jian also looked at the top floor.

Without a doubt, the messenger on that floor was the person closest to the secrets of this ghostly post office.

He also pondered that the old man who knocked on the door, Luo, had fallen to his death from the fifth floor. Could this mean that the old man who knocked on the door was a messenger from the fifth floor in his previous life?

"We need to find a way to go up to the fifth floor and take a look," Yang Jian said softly.

“If we can’t use the Ghost Domain to invade, are we supposed to send a letter? We can only send one letter every seven days, and after three times we can go up one floor. And the intervals will be even longer after that. How long will it take to send it?” Sun Rui frowned.

They are all in charge; how could they possibly have that much time to waste here?

Besides, they don't want to be employees at a ghost post office.

Cao Ya chuckled and said:

"Then let's tear up the letter. With our strength, we've withstood several attacks from vengeful ghosts, so there shouldn't be any major problems."

He stroked his chin and pondered for a moment:

"The Ghost Post Office is ultimately just a haunted place. Even if it can hold a lot of vengeful spirits, it's not limitless. Dealing with some of them beforehand will reduce the pressure when we get to the fifth floor."

Sun Rui's eyes flickered slightly as he looked at Cao Ya and then at Yang Jian. Seeing that the two captains had calm expressions, they had clearly reached an agreement.

That's true. With the two captains here, plus me and Li Yang... this is already a very strong team. If we still can't handle a few vengeful ghosts...

Sun Rui chuckled and nodded, saying:

"That's settled then."

He tapped the top of the golden staff with his finger, sounding troubled:

"Not a single letter has appeared, so there's nothing to tear up."

Beside them, the two messengers, Wan Xing and Qian Rong, changed their expressions slightly. The vengeful ghost summoned by tearing up the letter wouldn't care who tore it up.

The messengers involved will all be attacked by vengeful ghosts.

But none of them dared to refute it.

These guys didn't seem afraid of the ghosts when they talked about it. Judging from their attitude, it seemed like they came specifically to deal with the Ghost Post Office.

If you block their way, you'll likely suffer the consequences.

"come out."

Suddenly, Cao Ya looked towards room 17.

"The city's leaders? It seems this godforsaken place has finally attracted attention. You want to go to the fifth floor? I have a way to bypass the post office's rules and get to the fifth floor quickly, but it involves considerable risk. I just don't know if you leaders dare to do it?"

The door to room 17 opened, and a young man who was not yet twenty and looked a year or two younger than Yang Jian stood in the doorway, looking at them calmly.

Yang Jian was still a high school student, but he dropped out of school after becoming a Ghost Tamer.

He turned his head:

"You're the messenger from room number seven that Wan Xing mentioned? What's your name?"

The young man said:

"My name is Wang Shan. Before I came here, I was a student, still in high school. Because of some people, I entered the paranormal circle and learned some things. I knew about the headquarters and the person in charge, but I didn't know much. Later, I was unlucky enough to be brought to this ghostly place by a letter and became a messenger."

He pointed at Wanxing and Qian Rong and said:

“I arrived a while earlier than them and have only sent out two letters. I only need one more letter before I can go up to the second floor.”

Cao Ya nodded and said:

"Don't waste time, tell me your solution."

Wang Shan did not reveal the solution, but instead offered a suggestion:

"It's almost six o'clock. After six o'clock in the evening, the post office will turn off the lights. If people are still in the post office at that time and have not returned to their rooms, they will be targeted by the evil spirits wandering in the post office."

"A ghost wandering inside the post office?" Yang Jian frowned.

Wang Shan explained:

"I suspect it exists. The ghost is always inside the post office, and it only becomes active after the lights are turned off, and this activity continues until six o'clock the next morning."

"The only safe place is the room, which can basically keep out evil spirits."

Sun Rui asked:

"You know so much about this?"

Wang Shan replied:

“I’ve spoken to the messenger upstairs, so I know this. There are only ten minutes left, and I think it’s better to wait until tomorrow to talk about some things.”

As if to confirm what he said.

Inside the old post office, the already yellowish lights began to flicker, and then grew dimmer, gradually threatening to go out.

Besides, you could originally see the fourth and fifth floors from where you stood, though it was an illusion, but now those places are shrouded in darkness and you can't see them at all.

It was almost six o'clock, and I couldn't even be bothered to maintain the illusion anymore.

Cao Ya pondered for a moment. Since he couldn't go directly to the fifth floor, he decided to enter the room first and take a closer look at the Ghost Post Office.

After all, she had only learned about it from written texts before, and Cao Ya couldn't say for sure what changes might actually occur.

Besides that, Cao Ya also wanted to see the vengeful ghosts of the Ghost Post Office, and if he could imprison them all, he would.

He simply refused to believe that the vengeful spirits inside the Ghost Post Office were limitless!

As they are imprisoned layer by layer, the number of vengeful ghosts they will face in the end will definitely be greatly reduced.

"We shouldn't be caught off guard and end up losing our boat, right?"