Escape the Library

Hearing Yue Xingwen's words, the other students also quickly activated their brain cells to start the analysis. The monsters in the examination room at night were all "resentful spirits" produced by dying in the cardiovascular ward during the day. linked together. So, who were the 20 people who died before they came to the cardiovascular ward?

Liu Xiaoxiao suddenly thought of a possibility, looked up and asked, "Could it be that the classmates who were eliminated in the previous course also turned into resentful spirits and appeared in the night exam room?"

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

Looking at the score list before, there are so many students who have been drawn in from Hua'an University. What's more, the library is drawn from universities across the country, and there are thousands of college students who enter the mutant library. They only appear in the night examination room. 20 people, if it is a student who was eliminated, the number is completely wrong.

Liu Xiaoxiao agreed: "Yes!" She frowned and thought for a moment, then said, "What if, among the ten of us, someone is eliminated? Will they turn into monsters at night?" Zhen, when he thought that he would turn into a skeleton monster at night after being eliminated, everyone felt hairy on their backs.

Yue Xingwen said: "It is possible. Assuming that some of us died in last night's battle royale, there will be more monsters tonight, and the death of the students itself will reduce the combat effectiveness, and if the number of monsters increases, it will create a vicious circle, making it even harder to pass. In order to prevent this from happening, we still try our best to ensure that all members live to the end.”

The situation Liu Xiaoxiao guessed could indeed happen. If, on the first night, their 10 students didn't know how to cooperate with each other, not all of them survived, 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 to survive.

Therefore, calling all the candidates to join hands at the first time is the key to clearing this course.

It is conceivable that if there are no students with outstanding leadership in other examination rooms, or if some students are too selfish and sacrifice other students during the battle royale, the entire examination room may be destroyed. Everyone couldn't help but feel fortunate that the students who were matched in this exam room were very good, especially Yue Xingwen. He 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 is the murderer?" She decided to follow Yue Xingwen's train of thought, since she is not good at reasoning anyway.

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

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

She looked at Liu Zhaoqing, who studied medicine, and the latter replied: "Theoretically, patients in the cardiovascular ward will not be hospitalized for too long. Those who have surgery indications can 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 who died last night?"

Zou Yuhang immediately raised his hand: "Remember, he is from our ward. His condition has been very serious. It is said that he is hospitalized for the sixth time..." Having said this, Zou Yuhang suddenly reacted: "How many times has he been hospitalized?!"

Yue Xingwen nodded: "Yes. As Brother Liu said, the patient's hospital stay will not be too long, but he can be hospitalized many times like the 80-year-old grandpa. Therefore, we can't rashly call the patient the murderer. The possibility of it has been 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 I heard the keyword "long-term crime" just now, everyone subconsciously thought that the doctor was more likely to be the murderer. After all, the doctor stayed in the ward all the time, wouldn't it be very convenient to commit a crime?

However, Yue Xingwen's words made everyone stunned - if there is a patient who knows a lot about heart disease and has been admitted to the cardiovascular ward many times before and after, then he also has enough time to kill for a long time!

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

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

Yue Xingwen said: "Tomorrow, everyone will hurry up to investigate and try to locate the murderer on the third day. When you get up in the morning, you should check whether there is any death in the ward adjacent to you. After the doctor has checked the room, they will gather at the same place and exchange clues. ."

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

The students said goodbye to each other.

After returning to the ward, Yue Xingwen raised his ears and listened carefully to the movement in the corridor. He wondered if the murderer would come out to commit the crime again. However, there seemed to be some strange force urging him to sleep. Fall asleep.

Woke up at seven o'clock the next morning, Yue Xingwen asked, "Senior 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 on his body and said, "During the fight last night, all the bloodstains on the clothes were gone. It can be understood that the examination room at night is a different dimension. We were dragged there en masse, and the data was cleared when we came out. But why, when I got back to the ward, I couldn't help wanting to sleep?"

Liu Zhaoqing also realized this, he sat up and looked at Yue Xingwen: "Is the library system forcing us to sleep? Or are we adding sleeping pills and other ingredients 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 the same time."

Every time, I fell asleep instantly after the assessment, and woke up at 7:00 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, I don't want us to catch the murderer overnight."

If the students do not sleep at night, everyone hides at the door and peeks, and they can directly see who the murderer is. The library forced them to fall asleep because it wanted them to find clues and analyze the murderer, not to meet the murderer in person.

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

At 8:30 in the morning, the doctor began to round the room. Dr. Xiao asked the two again about their views on the operation. Yue Xingwen said embarrassedly: "Doctor, I will reconsider the operation. My family is not here, and no one has given me permission. Sign the book." Liu Zhaoqing also had the same reason: "My parents are on a business trip, and I have to discuss it with them."

Dr. Xiao said: "Discuss it as soon as possible. The coronary stenosis is so serious at a young age, the sooner the surgery is done, the better."

The other students were also scared by the "surgery" and turned pale, and they all made excuses to delay.

After the doctor checked the room, 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. Under the white cloth was a patient who had died not long ago.

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

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

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

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

When Yue Xingwen reasoned yesterday, he locked two suspect wards. The most suspected ones were No. 19, 20, and 21. All three were 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 going on in the corridor on the right?"

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

Yue Xingwen thought thoughtfully: "Three dead?"

It seems that the murderer has restrained, killing 5 people in the first night and 3 people in the second night.

However, the death of the 19-bed patient left Yue Xingwen puzzled. What he mainly suspected yesterday was the three patients in beds 19, 20, and 21, but the 19th actually died? Did the murderer go crazy and directly kill the patient in the next bed, or was the murderer a doctor who was committing a crime at random? Or, has his reasoning gone wrong?

Yue Xingwen took out the notes that he had organized in the past few days, and fell into contemplation while looking at the information above.

Since the 19th bed 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, who used to be 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 physician, who was transferred to this hospital a year ago, also meets the conditions for a long-term crime.

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 light flashed in his mind - since it can't be deduced by reasoning, then infer 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 became clear, he immediately got up and looked at Ke Shaobin: "Ke Shaobin, go to your ward, open 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 gather in the ward, Yue Xingwen said to the surrounding classmates: "Everyone, go back first, I will analyze the data with Ke Shao, and discuss with you when there is a result."

The students went back and waited for news.

Yue Xingwen and Liu Zhaoqing came to Ke Shaobin's ward together. He took the stool next to him and sat down in front of the hospital bed.

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

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

Ke Shaobin quickly entered information on the computer and searched for keywords.

Within ten seconds, a large row of patient information was listed on the computer screen. In addition to the three who died in the early hours of this morning and the five 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: "Died from respiratory failure and cerebral hemorrhage, these cases that have nothing to do with the heart can be removed. How many are left?"

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

Yue Xingwen said: "Do some data analysis, and pick out the cases that died in a few days. Those that die after a long time are eliminated as interference items."

The murderer's crime style is "slaughter". He will not kill only one person at a time. Those who die after a long time should be the interference item that really died of a sudden heart attack, and it has nothing to do with the murderer.

Ke Shaobin arranged the cases according to the chronological order of death. After removing all the interference items that only died after a few days, he said, "There are 26 people left."

Yue Xingwen said: "If the time of death is during the day, all are removed, and only the early morning is left." During the daytime, the ward is crowded and the murderer cannot commit the crime, but there may also be patients who die unexpectedly in the cardiovascular ward. These are also interference item.

Ke Shaobin eliminated the cases that died during the day and evening, and picked out all the deaths that occurred 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 exam room last night!"

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

Yue Xingwen nodded and said calmly: "From these 20 cases, find the first deceased."

Ke Shaobin quickly locked the target with the earliest death time: "It was a 78-year-old woman who died of acute myocardial infarction at 2:10 a.m. on June 1."

Yue Xingwen pointed to the case and 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 anti-reasoning methods to precisely target the first victim killed by the murderer half a year ago!

Only by finding the first deceased can we deduce the murderer's modus operandi from a psychological point of view.

Yue Xingwen said: "I made a mistake in my reasoning yesterday, because it is not the first time that the murderer committed a crime yesterday. He has long been familiar with the environment of the cardiovascular ward, and he does not need to kill the near and the far."

Yue Xing Wen paused and continued: "The first victim died on June 1 six months ago. Find out all the patients and doctors on duty who were hospitalized during the same period, and then follow up with the patients who lived in the cardiovascular ward for the past two days, The doctor makes a comparison."

Since the murderer has committed the crime for a long time, all the people on the scene when the first case happened are compared with all the people in the cardiovascular ward when the case happened. Those who were present in both cases were the most suspicious.

Ke Shaobin began to search quickly.

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

One is named Zhu Yuanbo, currently living in VIP-1 ward. One named Xu Dapeng, currently living in hospital bed No. 20, is one of the suspects identified by Yue Xingwen yesterday, and is engaged in the pharmaceutical-related industry.

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

Ke Shaobin found out the number of the hospital bed they were hospitalized six months ago, and said in surprise: "The grandmother who was victimized six months ago was living in bed number 10, and the two suspects, Xu Dapeng was living in bed number 40, and Zhu Yuanbo ... living in the deceased. Bed 11 next door!"

- This is the principle of proximity.

Yesterday, Yue Xingwen's analysis theory was actually correct, but he made a mistake about the time of the murderer's first crime. The suspect he locked was inferred based on the murderer's "first crime". But in fact, yesterday was not the first time the murderer committed the crime.

The murderer really committed the crime for the first time half a year ago. It was the patient in the next bed who 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!