Barrage:
"Damn it! My goddess almost died!"
"Pfft, Linda peed her pants again. Didn't she get scared into peeing by a suddenly appearing ghost face in a death factory last time?"
"He truly lives up to the title of the top-ranked player. Leo's reaction was so quick. Damn it, if it were me, I'd probably run away without looking back, but he actually thought about saving her!"
"That throwing knife was really fierce! It's just that the aim was a bit off. If it had been a bit more off and stabbed into Linda's forehead, I bet Leo would have been punished!"
"Hurting teammates will also be punished, but Leo's act of saving someone this time should add a lot to his rating reference!"
...
Just as the people in the barrage were marveling at Leo's reaction, Leo made another decision that left everyone shocked! After helping Linda stop the bleeding, Leo decided to enter that teaching building again!
"Are you crazy?"
"You still dare to go in?"
"What if it's lying in wait for you? Then you'll be walking right into a trap!" Linda looked at Leo with the eyes of someone looking at an idiot, her tone anxious.
Leo glanced at the darkness inside the teaching building and replied with interest, "It won't happen."
"The ghosts in this school don't move around freely. They're also following certain rules, just like us. For example, the ghost that chased us was an invigilator. So I'm certain that it won't follow us out of the teaching building. Otherwise, it would be breaking its own rules and would receive a terrifying punishment that we can't even imagine!"
Upon hearing this, Linda lowered her head. Only then did she feel a chill between her legs. Damn it, she peed her pants again! So embarrassing! Her face turned red, and she gritted her teeth to change the subject.
"Is there any important information in that building?"
"Is it worth taking such a risk?"
Leo replied, "I need a class register. The one in the invigilator's hand is too dangerous, so we won't consider that for now. But generally, a teacher won't just keep one class register. So there should be one or two spare class registers in her office."
After saying that, he got up to go in, but Linda behind him said, "Can you take me with you?"
Leo was surprised and looked back at her. "Are you sure?"
Linda took a deep breath. "I'm sure."
"I won't cause you any trouble. If we really encounter danger, you can just run away. Don't worry about me. If I don't do anything, even if I clear the dungeon, my rating and points will be very low. If I follow you, maybe I can be of some help at some point?"
Leo raised his eyebrows. "Okay."
The two of them entered the teaching building again. This time, they had gained some experience. They avoided the corridor on the side where the restrooms were located and directly went to the teacher's office on the fourth floor via the stairs on the other side.
"By the way, Leo... Why did you go to our classroom on the third floor just now?"
"To verify one of my speculations."
"What speculation?"
"The black shadows in the classroom... are the students who died during the day."
Leo stood on the fourth floor and found the office of their homeroom teacher. There was a simple information sticker on the door with the internal teachers' information and their photos. That old guy with a kitchen knife stuck in his head was obviously among them. But the old guy in the photo looked very kind.
He carefully pushed the door open. There were no black shadows in the room, and it was very safe. The two of them tiptoed in and carefully locked the door behind them.
While rummaging through the class register, Leo explained, "During the day, in the eight classes on the first floor, there were a total of 472 seats and 121 students. They were sitting in completely random seats. I wrote down their positions and their general postures roughly. And just now, in the classrooms on the first floor, the black shadows were sitting in the exact empty seats that were in the classrooms during the day! If this were the case in just one class, it might be just an accident. But if it's the same in eight consecutive classes... I think this is enough to become a rule. But I still wasn't sure... I'm always very cautious when I do things. So I went to the third floor. There, I saw the chubby guy sitting in front of my seat — he was killed by the invigilator during the day, and there was indeed a black shadow in his seat. So, now we can draw a basic conclusion — these black shadows are the students who were killed during the day."
Leo explained his inference in detail, leaving Linda stunned. "You just said... you remembered the positions of all 472 seats and 121 students in the eight classrooms on the first floor?"
"Yes."
"But... but you only took a glance!"
Leo looked up, puzzled. "Isn't that enough?"
Linda was left speechless. At this moment, she no longer doubted Leo's intelligence but began to doubt her own... They were both human, so why was there such a big gap? She began to question her life.
"But what's the use of us knowing this?"
Leo continued to explain, "It's very useful. Based on this rule, we can make an inference about the rules — people are in a 'living' state during the day, and the black shadows are in a 'dead' state at night. The living and the dead can't sit in the same seat. Otherwise, it will be regarded as 'violating the rules' and will result in execution."
Linda felt that her brain couldn't keep up. "Those black shadows have already died once, right?"
"Can they die again?"
Leo found a class register and a letter in the cabinet. He threw the letter aside and opened the class register. It not only had the names of all the students in the class but also marked their assigned seats.
Leo recalled the calendar hanging below the alarm clock during the day and immediately flipped through the class register to match it one by one. It was September 14th.
"Look." Leo's finger pointed at the seat in front of his name. There was no name there. This meant that no one should sit in that seat. But the chubby guy sat in front of Leo. In fact... he also realized that he had sat in the wrong seat, but he didn't know which was the correct seat! So, he was afraid! He knew that he would die if he sat in the wrong seat!
After learning that their life and death were related to the position of their seats, Linda suddenly became excited! "Then we can just take this class register away, and we'll know where we should sit in the following days, right? We can clear the dungeon!"
Leo said calmly, "No, it's not that easy." He flipped through the class register and turned six pages after the 14th. They had to survive in the school for seven days. So theoretically, if the daytime was continuous, when they left the dungeon, it should end on September 20th. But this class register in Leo's hand only had the seat arrangements up to the 19th. After that, it was all blank.
"Huh —— Why are there no seat arrangements after the 19th?" Linda tilted her head, her eyes full of confusion.
Leo looked at her with a solemn gaze, and his words made Linda's hair stand on end! "Because on the 20th, all of us... will die!"