Escape From the Library

Hearing Yue Xingwen's words, other students also quickly mobilized their brain cells to start analysis—the monsters that appeared in the examination room at night were all "ghosts" that died in the cardiovascular ward during the day. The examination room is linked together.So, who were the 20 people who died before they came to the cardiovascular ward?

Liu Xiaoxiao suddenly thought of a possibility, raised her head and asked, "Could it be that the students who were eliminated in the previous course also turned into resentful spirits and appeared in the night examination room?"

Yue Xingwen thought for a moment, then shook his head: "No. The elimination rate of the course "Escape from the Laboratory" is 30%, and the elimination rate of the course "Cardiovascular Ward" is definitely not low. If the eliminated If all the students are placed in the night examination room, then we are facing not only 20 monsters, but hundreds of monsters."

Looking at the score list before, there are so many students who have been recruited from Hua'an University alone. What's more, the library recruits students from universities across the country. There are at least a thousand students who enter the mutant library. 20 people, if they were eliminated students, the number would not match at all.

Liu Xiaoxiao agreed, "That's right!" She frowned and thought for a moment, and then said, "What if one of the ten of us is eliminated? Will he turn into a monster at night?" This question made the students feel refreshed. Zhen, thinking that after being eliminated, he would turn into a skeleton monster at night, everyone felt shivers down their spines.

Yue Xingwen said: "It is possible. Assuming that some of us died in the battle royale last night, there will be more monsters tonight, and the death of the students themselves will reduce the combat effectiveness. If there are more monsters, it will cause a vicious circle and make it more difficult to pass the level." .In order to prevent this from happening, we still try our best to ensure that all members survive to the end."

The situation that Liu Xiaoxiao guessed is indeed possible. If, on the first night, 10 of their students didn't know how to cooperate with each other, and they didn't all survive, and more than 3 died, plus the 5 patients who died in the ward, tonight There may be more than 8 elite monsters in the battle royale, and there is no way out.

Therefore, the key to pass this course is to convene all candidates to join forces at the first time.

It is conceivable that if there are no students with outstanding leadership in other examination rooms, or some students are too selfish and sacrifice other students during the battle royale, the entire examination room may be wiped out.Everyone couldn't help but rejoice that the students who were matched in the examination room this time were very good, especially Yue Xingwen, who was the first to propose cooperation and calmly counted the number of monsters.

Qin Lu put away the globe in her hand, looked at Yue Xingwen and said, "Xingwen, who do you think will be the murderer?" She decided to follow Yue Xingwen's train of thought, since she was not good at reasoning anyway.

Yue Xingwen said: "The suspects we are currently targeting include three on-duty doctors and three patients. Since it is confirmed that the murderer has committed the crime for a long time, Dr. Sun can be the first to rule it out. He is an intern in the cardiovascular ward after graduating from graduate school. The time to come to the ward does not exceed one month, and does not meet the conditions for committing a crime."

Qin Lu wondered: "Can't the patient be ruled out? The patient wants to commit crimes for a long time, and the time doesn't match, right? Can the patients in the cardiovascular ward stay here for several months?"

She looked at Liu Zhaoqing, who was studying medicine, and the latter replied: "Theoretically, patients in the cardiovascular ward will not be hospitalized for too long. Those with indications for surgery will be discharged after a few days of observation. There is no way to do surgery." Yes, you will be discharged after a week or two of hospitalization, so it is difficult to commit crimes for a long time."

Yue Xingwen didn't think so: "Do you still remember the 80-year-old man who died last night?"

Zou Yuhang immediately raised his hand: "Remember, he is in our ward. His condition has been very serious. It is said that he has been hospitalized for the sixth time..." At this point, Zou Yuhang suddenly realized: "Multiple hospitalizations?!"

Yue Xingwen nodded: "Yes. As Brother Liu said, the patient will not be hospitalized for too long at a time, but he can be hospitalized many times like that 80-year-old grandfather. Therefore, we cannot rashly regard the patient as the murderer The possibility is ruled out. Although it is more convenient for doctors to commit crimes for a long time, reasoning cannot be limited to subjective thinking, and substantive evidence must be found.”

When they heard the key word "long-term committing a crime" just now, everyone subconsciously thought that the doctor was more likely to be the murderer. After all, the doctor has been staying in the ward, wouldn't it be convenient to commit crimes?

However, Yue Xingwen's words made everyone suddenly enlightened - if there is a patient who is very familiar with heart disease and has been admitted to the cardiovascular ward many times, then he also has enough time to kill people for a long time!

In this way, the scope of suspects is indeed narrowed.

Among the three suspects, those who were hospitalized only once or twice can be directly ruled out, and the suspicion of patients who were hospitalized many times soared.

Yue Xingwen said: "Tomorrow, everyone hurry up to investigate and try to locate the murderer on the third day. When you get up in the morning, you must first confirm whether there are any deaths in the ward adjacent to you. After the doctor checks the ward, gather in the old place and exchange clues. .”

At this moment, a familiar mechanical voice sounded in everyone's ears: "The night assessment is over, and there are 0 students who died. Please go back to the ward to rest and prepare for tomorrow's exam."

The students said goodbye to each other.

After returning to the ward, Yue Xingwen pricked up his ears and listened carefully to the movement in the corridor. He wanted to know if the murderer would come out to commit crimes again. However, there seemed to be some strange force imperceptibly urging him to sleep, and he once again Go to sleep.

Waking up at seven o'clock the next morning, Yue Xingwen turned his head and asked, "Brother, did you hear anything last night?"

Liu Zhaoqing rubbed his sleepy eyes and said, "I fell asleep after returning to the ward."

Yue Xingwen frowned slightly. He glanced at the clean hospital gown and said, "During the fight last night, all the blood splattered on the clothes disappeared. It can be understood that the nighttime examination room is a different dimension. We were dragged there collectively, and the data was cleared when we came out. But why, when I returned to the ward, I couldn't help but want to sleep?"

Liu Zhaoqing also realized this. He sat up and looked at Yue Xingwen: "Is the library system forcing us to sleep? Or is it that sleeping pills are added to our food and drinking water?"

Yue Xingwen thought about it carefully: "Sleeping pills shouldn't let us go to bed and wake up at a fixed time."

Every time I fell asleep instantly after the assessment was completed, and woke up on time at 7:[-] the next morning, no sleeping pills could do this.Yue Xingwen looked up at the clock on the wall, and said, "It should be done by the library. We don't want us to catch the murderer all night."

If the students don't sleep at night and everyone hides at the door and peeps, they can directly see who the murderer is.The library forced them to fall asleep in order to let them find clues and analyze the murderer instead of meeting the murderer face to face.

After figuring this out, Yue Xingwen got up to wash up, and walked out of the ward to see if the patient next door was okay.

At 8:[-] in the morning, the doctor began rounds. Dr. Xiao asked the two of them again about their views on the operation. Yue Xingwen said in a difficult way: "Doctor, I will think about the operation again. My family is not here, and no one has given me permission." Sign the book." Liu Zhaoqing had the same reason: "My parents are away on a business trip, so I have to discuss it with them."

Dr. Xiao said: "Discuss as soon as possible. The coronary artery stenosis is so severe at a young age, the sooner the operation is performed, the better."

The other students were also frightened by the "surgery" and turned pale, looking for excuses to delay.

After the doctor checked the ward, Yue Xingwen and Liu Zhaoqing walked out of the ward together.As soon as he went out, he saw a nurse pushing a hospital bed through the corridor. The bed was covered with a white cloth, and under the white cloth was obviously a patient who had died not long ago.

The two looked at each other and walked quickly to the rest area.

Seeing that the students had arrived, Yue Xingwen asked softly, "Have you checked the adjacent ward?"

Liu Xiaoxiao nodded and said, "I went to see it as soon as I woke up in the morning. All the patients in beds 6 to 14 next door are fine."

Zou Yuhang followed closely: "Patient No. 19 next door to me died. You should have seen a nurse pushing a hospital bed out when you went out just now, right? The one covered with a white cloth is No. 19."

Yue Xingwen locked in two suspect wards during his reasoning yesterday. The most suspected ones are No. 19, 20, and 21. All three are engaged in medical related industries.Among them, No. 19 is a retired professor of medical school.

Yue Xingwen frowned, and continued to ask: "What's the situation in the corridor on the right?"

Ke Shaobin said: "The 44 bed is gone." Qin Lu added: "The old lady next door to me with the 36 bed is also gone."

Yue Xingwen was thoughtful: "Three died?"

It seemed that the murderer had restrained himself, killing 5 people on the first night and 3 people on the second night.

However, Yue Xingwen was puzzled by the death of the 19-bed patient.What he suspected yesterday were the three patients in beds 19, 20, and 21, but the 19th actually died?Was the murderer frantic and directly killed the patient in the next bed, or was the murderer a doctor who committed the crime randomly?Or, was there a mistake in his reasoning?

Yue Xingwen took out the notes he had compiled in the past few days, and fell into deep thought while looking at the information on it.

Now that Bed 19 is dead, there are only four options left for the suspect——

A. 20 beds, a 55-year-old patient with coronary heart disease, named Zhou Heng, engaged in pharmacy-related work;

B. 21 beds, 56-year-old patient Xu Dapeng, once worked as a medical representative;

C. Xiao Wen, the attending doctor, stayed in the cardiovascular ward for a long time;

D. Ma Ping, a 30-year-old resident doctor, was transferred to this hospital a year ago, and also meets the conditions for long-term crimes.

These four answers are all deduced by Yue Xingwen, but... is his analysis really comprehensive?

Yue Xingwen always felt that he seemed to have missed some clues.

He stared intently at the document in his hand.Suddenly, a flash of inspiration flashed in his mind—since the reasoning cannot be deduced, then reverse the cause from the result, that is, reverse thinking.

He couldn't find the motives of the four suspects A/B/C/D, and felt that the murderer's behavior was very strange, but he knew the result of the murderer's crime. 20 people died before, and 8 people died in the past two days .He can start from the results, look for clues and evidence, and deduce who the murderer is.

Yue Xingwen's mind suddenly brightened, and he immediately got up and looked at Ke Shaobin: "Ke Shao, go to your ward, turn on the laptop, no matter what the suspect is, I want to find the murderer directly from the existing information."

In order to prevent a group of heart patients from being scolded by the doctor when they gathered in the ward, Yue Xingwen said to the students around him: "Everyone go back first, I will analyze the data with Mr. Ke, and we will discuss with you when we have the results."

The students went back and waited for the news.

Yue Xingwen and Liu Zhaoqing came to Ke Shaobin's ward together. He took the stool next to him to the bed and sat down, and asked, "Young Master Ke, you copied all the information in the computer in the doctor's office, right?"

Ke Shaobin nodded: "Yes, it was copied on the first day. What do you want to check?"

"Search the death cases in all the data, first find out all the patients who died in the cardiovascular ward."

Ke Shaobin quickly entered information into the computer to search for keywords.

Within ten seconds, a large row of patient information was listed on the computer screen.Excluding the 3 people who died early this morning and the 5 people who died yesterday, a total of 48 patients died in the cardiovascular ward in the past year.

Yue Xingwen leaned over and took a look: "Death from respiratory failure, cerebral hemorrhage, these cases that have nothing to do with the heart can be eliminated. How many are left?"

Ke Shaobin focused on the patients whose cause of death was myocardial infarction, and said, "There are 33 patients left."

Yue Xingwen said: "Do some data analysis and pick out the cases that die within a few days. The ones that die only after a long time are eliminated as interference items."

The murderer's modus operandi is "slaughter". He won't just kill one person at a time. Those who die one after a long time should be the disturbance of the real death from a heart attack, which has nothing to do with the murderer.

Ke Shaobin arranged the cases according to the order of the time of death. After eliminating all the interference items that only died once every few days, he said: "There are 26 cases left."

Yue Xingwen said: "All those who died during the daytime should be removed, and only those in the early morning will be kept." During the daytime, the ward is crowded with people, and the murderer cannot commit the crime, but there may also be patients who died unexpectedly in the cardiovascular ward. Interfering items.

Ke Shaobin eliminated the cases that died during the day and evening, and picked out all the cases that died in the early morning.He looked at the computer screen and said excitedly: "The remaining patients are exactly 20, which matches the monster data in the examination room last night!"

Looking at these cases, Liu Zhaoqing clenched his fists tightly: "It seems that these 20 people are all the victims who were killed by the murderer before?"

Yue Xingwen nodded and said calmly, "Find out the first deceased among these 20 cases."

柯少彬迅速锁定了死亡时间最早的目标：“是一位78岁的老年女性，死于急性心肌梗死，死亡时间是6月1日凌晨2点10分。”

Pointing to this case, Yue Xingwen said firmly: "This old lady is the first victim killed by the murderer."

Ke Shaobin and Liu Zhaoqing looked at Yue Xingwen excitedly - he used database data analysis and inverse reasoning to precisely target the first victim killed by the murderer half a year ago!

Only by finding the first deceased can the murderer's method of committing the crime be deduced from a psychological point of view.

Yue Xingwen said: "I made a mistake in my reasoning yesterday, because it was not the first time that the murderer committed a crime yesterday. He already knew the environment of the cardiovascular ward very well, so he didn't need to kill the near ones first, and then the far ones."

Yuexing Wen paused, and continued: "The first victim died on June 6st half a year ago. Find out all the patients and on-duty doctors who were hospitalized during the same period. The doctor will do a comparison."

Since the murderer has committed crimes for a long time, then compare all the personnel on the scene when the first case occurred with all the personnel in the cardiovascular ward when this case occurred-the person who was present in both cases is the most suspect.

Ke Shaobin began to search quickly.

The first victim died 6 months ago. There were a total of 40 inpatients in the ward that day, and the doctors on duty happened to be Xiao Wen and Ma Ping. Among these 40 people, they coincided with the inpatients in the cardiovascular ward in the past two days. Yes, there are two people.

One is Zhu Yuanbo, currently living in Ward VIP-1.One is Xu Dapeng, who is currently living in hospital bed 20. He is one of the suspects targeted by Yue Xingwen yesterday, and he is engaged in medicine-related industries.

Yue Xingwen said: "Compare the bed number of the first deceased with the distance to the two suspects."

Ke Shaobin found out the bed number they were hospitalized half a year ago, and said in surprise: "The grandmother who was victimized six months ago lived in bed 6. The two suspects, Xu Dapeng lived in bed 10, and Zhu Yuanbo... Bed 40 next door to the dead!"

——This is the principle of proximity.

Yesterday, Yue Xingwen's analysis theory was actually correct, but he misunderstood the time when the murderer committed the crime for the first time, and the suspect he locked was based on the reasoning of the murderer's "first crime".But in fact, yesterday was not the murderer's first crime.

The murderer actually committed the crime for the first time half a year ago.It was the patient in the next bed that was killed.

This additional question does not only have four options A, B, C, and D.

The "E option" that he missed, the mysterious patient currently living in VIP-1 ward, may be the real answer!