The so-called Caesar cipher is currently the simplest and most well-known encryption method.

In short, it is to shift all the letters on the alphabet, such as changing "A" to "B", "B" to "C", and so on.

For example, the common English word "CAN", when encrypted using the Caesar cipher, becomes "DBO".

At first glance, it looks like a string of gibberish, but after decryption, it can become an accurate word.

"The only thing that needs to be confirmed... is how many times the letters have been shifted?"

Qi Xia is not an expert in cracking codes after all. Although he knows the general direction, the remaining questions can only be solved using the dumbest and most direct method—

Trial and error.

He first assumed that each letter was shifted once, but after several minutes of decryption, he still got a string of gibberish.

So he tried a second shift.

This seemingly simple step made Qi Xia silent for a long time.

"MLGDRZDQVXL".

He didn't have pen and paper by his side, so everything had to rely on mental calculations. Shifting each letter in this long string twice, imagining "M" as "K" and "L" as "J", was not an easy task.

"It's still not right..."

After a few minutes, Qi Xia slowly furrowed his brows.

Theft is never good, try looking at bit.ly/3iBfjkV.

He had tried twice, but still couldn't crack the code. Could it be that he was thinking in the wrong direction?

The letters can be shifted a total of twenty-five times, in other words, "A" can be any letter other than "A". If each one has to be calculated mentally, the workload would be unimaginable.

"Is this your method?" Jiang Ruoxue asked leaning against the door frame.

Qi Xia didn't answer, he just calmed himself and started the third shift.

Now, he had to attempt to shift each letter forward three times.

Imagining "M" as "J" and "L" as "I".

But this time, after only trying five letters, Qi Xia's expression became heavy.

Jiang Ruoxue looked at him with interest, "Oh? Did you solve it?"

Qi Xia's lips moved slightly as he pronounced his answer, "JI...DAO...WAN...SUI?"

"Yes, yes, yes!" Jiang Ruoxue clapped happily, "So after deciphering, it really is 'Long live the underworld'? I thought it wasn't successful."

When these four words were mentioned, Qi Xia rarely felt a sense of panic.

He sat down on the seat, looking at Jiang Ruoxue with a somewhat frightened expression, and muttered, "What are you going to do...?"

"It's nothing." Jiang Ruoxue shook her head, "I'm going to die anyway, so this time I'll just say hello to you."

"Say hello..." Qi Xia gritted his teeth, "The last time you 'said hello' to me, you killed two of my teammates..."

"Oh? Is that so?" Jiang Ruoxue was slightly surprised, "So Xiao Xiao did it? She didn't mention it to us, but it doesn't matter. You should be more forgiving. Xiao Xiao has always been like that, but she's still a good person."

"What nonsense are you talking about..." Qi Xia slowly stood up, "She's a 'good person'? Right now, I want nothing more than to tear her apart..."

"You seem really angry..." Jiang Ruoxue walked up to him and patted Qi Xia's shoulder, saying, "How about this, I'll die after this game, a life for a life. Will that make you feel better?"

Qi Xia didn't answer that question, he just felt that Jiang Ruoxue in front of him was strange.

Or rather, people from the underworld were strange.

He paused for a moment, turned around, and picked up the letter on the table, asking, "What about the original password? If you change the password, won't it harm my teammates again?"

"What are you talking about? This is the 'password'." Jiang Ruoxue looked at Qi Xia in confusion, "Isn't this the letter sent by your teammate?"

"You..." Qi Xia was equally confused, "You're saying 'Long live the underworld' is the password? Are you working with the 'Dog of Earth'?"

"Not really, we have nothing to do with the 'Chinese Zodiac'." Jiang Ruoxue shook her head, "Qi Xia, you need to understand a logical relationship. Since the 'Dog of Earth' said 'the letter is the password', and 'the letter is Long live the underworld', then 'Long live the underworld' is the password."

"What...?"

Qi Xia always felt that this was a very strange logical relationship.

Jiang Ruoxue didn't seem like a completely irrational lunatic, but her words were still difficult to understand.

Qi Xia walked slowly to the cabinet, and wrote the four Chinese characters "Long live the underworld" on the touch screen.

Jiang Ruoxue smiled and said, "It's really incredible that these four characters were written by you."

With a light click, the cabinet door opened.

Zhang Chenze was sitting inside, trembling. When she looked up, she met Qi Xia's gaze.

Before Qi Xia could say anything, Zhang Chenze immediately rushed over and hugged him.

"Qi Xia!!"

"I..." Qi Xia looked a bit embarrassed, not knowing where to put his hands.

"It's great... I was so scared..." Zhang Chenze was trembling all over, whether it was from fear or cold, "I thought I would be roasted alive in there..."

"Zhang, Zhang Lawyer, I remember you don't like being touched by others." Qi Xia said awkwardly.

"Ah..." Zhang Chenze quickly let go, wiped her teary eyes, and said, "I'm sorry... Did I cause you any trouble?"

"No, it didn't trouble me, it just startled me." Qi Xia shook his head, "I don't really like things that go beyond my expectations. In my impression, you're not that kind of person."

"I-I'm sorry." Zhang Chenze slowly lowered her head, returning to her usual demeanor.

Just as the two fell into silence, the broadcast in the room sounded again.

"A team has successfully rescued their teammate. The game is over."

The people in the entire building instantly became noisy.

As the saying goes, some are happy while others are worried.

Qi Xia heard a burst of rapid footsteps, as if someone was running towards the room he was in.

He felt that something was not right and immediately went out to look.

He saw Old Lv with a swollen nose and a bruised face, running towards him as if his life depended on it."Qi Xia... Save me!!"

Qi Xia frowned, noticing that a green-haired man was chasing after Old Lv like a mad dog.

"Old dog! I've told you, haven't I?! If I die, you'll pay with your life!!" The green-haired man seemed to have blood in his eyes, closely following Old Lv.

"Isn't that your boyfriend?" Qi Xia turned his head and asked, "Are all people from 'Jidao' this crazy?"

"He's not from 'Jidao'." Jiang Ruoxue crossed her arms, "My role-playing game ends here too, it's really tiring to play a love-struck woman."

"So you mean you're not going to deal with what's going to happen next?" Qi Xia said.

"I don't care anymore, I'm waiting for death." Jiang Ruoxue went into the house and sat down, beginning to close her eyes and rest.

Qi Xia nodded, picking up the iron box from the table.