Escape From the Library

At six o'clock in the afternoon, the students had their own dinner, and then went to the ward where Yue Xingwen was located, and handed back the "homework" assigned to everyone to Yue Xingwen.

Yue Xingwen carefully summarized the homework submitted by everyone, and sorted out the experiences of the five deceased.

Bed No. 5, a 55-year-old female with a cheerful personality.The son and daughter-in-law are both teachers. They visited her in the hospital yesterday afternoon. It was originally agreed to go through the discharge procedures today. The old lady is recovering well.The family members came to the hospital this morning and heard that she had died unexpectedly. They refused to accept the fact, cried a lot in the ward, and argued with the doctors for a long time.

Yue Xingwen handed the information to Liu Zhaoqing, who frowned and said, "This old lady died unjustly. She was supposed to be discharged from the hospital today, but she suffered a heart attack last night. No wonder the family members couldn't accept it."

Yue Xingwen continued: "The family members of the 80-year-old man are very calm. He is in a critical condition and has been hospitalized six times. His family members should be mentally prepared and quickly accept the fact that the old man died. Take the body away."

Liu Zhaoqing asked: "The 60-year-old lady originally arranged for an operation three days later, but unfortunately, she passed away before the operation was performed. What does her family say?"

Yue Xingwen said: "Her family members are out of town and have not had time to claim the body. The remaining two grandfathers, 70 and 77 years old, have already undergone operations. The family members should feel more uncomfortable. I thought the operation was successful. , resulting in sudden death after the operation.”

Liu Zhaoqing sighed: "Sigh, sudden illness in the hospital, death in the middle of the night is very common, I have encountered it several times during my internship. But if it is really like what you said, someone secretly tampered with it, it will be completely different. "

Yue Xingwen nodded: "So, we have to find clues as soon as possible."

At 07:30 in the evening, most of the doctors had already left work, and the students began to pretend to be sick according to Yue Xingwen's instructions.

First, Liu Xiaoxiao, who was in bed 4, pressed the call button. When the nurse came to the bed, she curled up on the bed and rolled while shouting, "My stomach hurts. Did I eat something bad? It hurts..." The thin girl's forehead Breaking out in a cold sweat, he pressed his stomach and looked pale.The nurse was taken aback and hurried to the doctor on duty.

As soon as the doctor walked into Liu Xiaoxiao's ward, the boy from the chemistry department began to pretend to be sick. The boy already looked sick, shivering on the bed while pressing his heart.Zou Yuhang, who was in the same ward, rushed to the doctor's office with a nervous expression on his face: "Doctor, doctor, my patient has a heart attack, go and have a look!"

The doctor who had just eaten was called away by him.

Then, Qin Lu cooperated with acting, pretending that she had a headache, and called the last doctor on duty away.

The condition of patients in the ward was frequent, and the three doctors were transferred away from the mountain. Yue Xingwen and Liu Zhaoqing had been walking near the doctor's office. Seeing that the doctors were all called away, Yue Xingwen immediately gestured to Ke Shaobin in the distance.

Ke Shaobin understood, slipped into the doctor's office under the cover of Yue Xingwen, turned on the doctor's computer and began to decipher the code.Liu Zhaoqing and Yue Xingwen guarded the left and right corners of the corridor to prevent doctors or nurses from coming.

Ke Shaobin sat in front of the computer, typing on the keyboard quickly with his slender hands, with an extremely serious expression.

Lines of complex codes appeared on the computer screen. After a while, Ke Shaobin successfully invaded the system. He quickly raised his right hand, placed his laptop next to the desktop, and turned on wireless data transmission.

A blue [data transfer...] reading box appears on the computer.

Seeing that the transmission reached 80%, there was a sudden sound of footsteps from the corridor on the right. Liu Zhaoqing saw a nurse coming over pushing the treatment cart, and hurriedly stepped forward to stop the other party, and said with a smile, "Nurse hello, please ask, tonight, Do I still need injections? I am Liu Zhaoqing, a patient in bed 16."

The nurse glanced at the name on his wristband, flipped through the list on the treatment cart, and said, "You don't need an injection tonight, go back and have a good rest. I'll ask your doctor in charge for the specific treatment plan during the rounds tomorrow morning. "

Hearing the conversation in the corridor, Ke Shaobin was so nervous that cold sweat broke out in his hands.

The data transmission finally became 100%, Ke Shaobin immediately exited the system, raised his right hand, put the laptop back in his palm, quickly slipped out of the office, turned and left with Yue Xingwen.

Seeing the two of them approaching, Liu Zhaoqing smiled at the nurse and stepped aside to make way: "Thank you beauty."

The three of them walked along the corridor towards the ward. When they passed the nurse's station, they found an oversized trash can marked "medical waste" at the end of the aisle next to the nurse's station.Yue Xingwen looked at Liu Zhaoqing, and pointed to the trash can: "Brother, do you want to look through it? If my inference is true, the evidence that the murderer didn't have time to deal with may be in the trash can."

Liu Zhaoqing nodded: "Well, let's go."

The three sneaked to the nurse's station.

Because the other students were still doing their best to hold back the doctors and nurses, and there was no one around, Ke Shaobin stood guard at the entrance of the passage to cover. Yue Xingwen and Liu Zhaoqing stole two pairs of medical gloves from the nurse's station, put them on, and opened the trash can to start looking for clues .

Gauze and syringes are of no reference value, the key lies in the medicine bottle.

Yue Xingwen dug out all the medicine bottles and infusion bags, and Liu Zhaoqing carefully checked them next to him: "Normal saline, glucose, antihypertensive drugs, blood transfusion drugs...and adrenaline, which should be used when rescuing patients... ..." He went through the potion bottles that he found one by one, then shook his head: "They are all common medicines, nothing unusual."

Although a lot of effort was wasted, Yue Xingwen was not frustrated, and said softly: "There is no trace left here, which means that the murderer did not change the medicine at the nurse's station. The possibility of the nurse committing the crime is relatively low, and the scope of investigation can be further narrowed."

The three of them went back to the ward and sat down. After a while, several classmates knocked on the door and came in.

Yue Xingwen's voice was gentle: "Everyone has worked hard, find a place to sit, let's have a meeting and discuss it first."

Zou Yuhang joked: "It feels like a class meeting. Is Xingwen our temporary monitor?"

Yue Xingwen smiled at him, then looked at Ke Shaobin: "Open the file and see the conclusions of the doctors."

Ke Shaobin raised his right hand, and the computer icon in his palm turned into an ultra-thin notebook. The other students envied the rewards of the computer department—it was a laptop and an intelligent robot. The computer department is really rich and powerful!

Ke Shaobin opened the patient information folder in the laptop, and turned the screen for Yue Xingwen to see.Yue Xingwen quickly slid the mouse over the course records that he had read yesterday, and directly opened the newly added "Death Case Discussion" section, and greeted Liu Zhaoqing: "Brother, you are more professional, you should come and take a look."

Liu Zhaoqing moved a stool and sat next to him, looked at the screen and said, "These are the analysis of death cases that were recorded after the doctors had a meeting in the afternoon. The causes of death of the five people were all acute myocardial infarction. In the case, there are The detailed time of death and rescue records, judging from the rescue records, the doctors did try their best, but unfortunately they failed to save him."

Yue Xingwen tore off a blank sheet of paper from the dictionary, and said while tidying up——

“15床病人死于凌晨1点10分；24床死于凌晨1点20分；5床死于凌晨3:30分；50床死于凌晨3:40分；33床死于凌晨5点整。”他抬头看向大家：“发现规律了吗？”

Everyone looked at each other for a while.

Zou Yuhang raised his hand first: "Is there a problem with the time of death?"

Ke Shaobin analyzed: "These hospital beds sound quite messy, but after Xingwen organized them according to the time of death, the death of the patients seemed to be divided into three stages, two died at 1:10 and 1:20, and two died at 3:30. At 3:40, two died, and at 5 o'clock, one died?"

The other students suddenly realized, but immediately showed a blank expression: "Is there any particularity to this?"

Yue Xingwen drew a circle on the paper with a pen: "The murderer's crime time and moving path."

Hearing the word "murderer", a group of students stiffened at the same time. Zou Yuhang's face was pale, and his lips couldn't help trembling: "Murderer, murderer? You mean, these five patients were killed?!"

"That's right. The additional question allows us to find the real cause of death of the patients in the ward. If there is no human factor in their death, then the answer to this question is 'acute myocardial infarction'." Yue Xingwen paused, raised his eyes and looked at Everyone, "Do you think that the 30-point additional question will be so simple, and the points will be awarded directly?"

It is easy for everyone to think of the death of acute myocardial infarction in heart disease patients.The death case analysis of the doctors is also written in this way, which is definitely not the correct answer.

"I personally believe that the deaths of the five patients were caused by the same murderer." Yue Xingwen turned to look at Liu Zhaoqing, "Brother, is there any medicine that can cause a heart attack patient to have a myocardial infarction?"

"Vascoconstrictor drugs." Liu Zhaoqing lightly clenched his left hand into a fist again to represent the heart, and gestured with his right hand to explain: "You can understand that in patients with coronary heart disease, the blood vessels on the surface of the heart are narrowed and the river channel is congested. Doctors usually use relaxation, softening But if you do the opposite, give them blood-vessel-constricting drugs." His two fingers suddenly tightened: "Once the blood vessels that are originally narrow are constricted by the drugs, they will not be blocked. Are you staying?"

Brother Liu's explanation, coupled with gestures, is easy to understand.The patient's blood vessels are already narrowed, and continuing to use vasoconstrictor drugs can easily cause blood vessel blockage, leaving the patient unconscious and unconscious, leading to sudden myocardial infarction death.

——All they have to do is to find this person, and this is the answer to the additional question.

Ke Shaobin put forward another conjecture: "Some highly toxic substances can kill these people quickly, right? If someone adds highly toxic to their medicine, this injection can also kill five people?"

Yue Xingwen nodded: "The possibility of poisoning cannot be ruled out."

Qu Weiwei's face turned pale, and she bit her lip and asked, "But who would do this? What's the reason for doing this? What kind of hatred do the five patients have against him?"

Zou Yuhang speculated: "From the information we have collected, the five patients don't know each other at all. The probability of offending the same murderer is very small, right? Could it be that a certain perverted doctor in the hospital is doing human experiments? Before "Escape The level of "Laboratory" is the monkey mutation caused by the problem of the medicine in the laboratory."

Yue Xingwen also thought about this possibility. He pondered for a moment and pointed out a doubt: "In the laboratory class, researchers experiment with antiviral drugs on animals. If the cardiovascular department is also experimenting with new drugs, Brother Liu should be able to find something wrong from the case, right?"

He looked at Liu Zhaoqing, who hurriedly opened the diagnosis and treatment records of several patients in the laptop, pointed to the medicines on it and said, "I read the diagnosis and treatment plan yesterday, and there is nothing wrong with it. The doctors prescribed common control crowns for patients." The medicine for heart disease, we also searched the trash can just now, but found no suspicious medicine, it should not be the doctor's experiment."

Ke Shaobin said: "After analyzing and analyzing, Xingwen's inference is the most reasonable - there is a hidden murderer in the ward. He secretly changed the medicine, or added a poison to the medicine, killing five people in a row. patient."

The faces of the students were a little ugly.

Is this exam really reasoning to find a murderer during the day and a thrilling battle royale at night?

Everyone looked at Yue Xingwen, and Zou Yuhang said, "Xingwen, what do you know about the murderer?"

Yue Xingwen cleared his throat, and concluded: "Many murderers and victims of serial murders have common characteristics, such as long-haired women, young men, etc. This is usually related to the murderer's hatred towards this group of people. In our case, the five deceased were of different ages, identities, and genders, but they had heart disease in common, and the murderer must have been dissatisfied with heart disease patients. He only killed heart disease patients, so we all have to be careful."

Zou Yuhang couldn't help complaining: "It's designed to kill heart disease? Isn't it difficult to reason?"

Yue Xingwen said calmly: "It's not too difficult. Because the murderer in this case is around us, and there is a fixed range of suspects, we can use the method of elimination to investigate one by one."

Liu Zhaoqing quickly realized: "That's right! The patient died last night. The time of death included one, three, and five in the morning. The gate of the ward was locked at night, and outsiders could not get in. It means that the murderer stayed there all night last night. In the ward!"

Yue Xingwen nodded: "For those who stayed in the ward last night, except for the 10 of us and the 5 people who were killed, all the doctors, nurses, and patients on duty are all suspects. Please look at the picture I drew first. .”

He picked up the paper he had drawn for a long time and showed it to everyone.

The students were surprised to find that he had drawn a strange circular trajectory on it.

越星文道：“五个病人的死亡时间分别是1点10分、1点20分；3点30分、3点40分；5点，分成了三个阶段，凶手杀人的顺序，从15床、24床，再到5床、50床，最后到33床，这是凶手昨晚的移动路线。”

He drew three arrows on the paper with a pen, representing the murderer's trajectory in three time periods, and then said: "According to the analysis of the graphic trajectory and the inference of criminal psychology, the murderer will first pick the one closest to him when he commits the crime." People, it is convenient to start, and only after the crime is successful, will you choose a hospital bed that is far away. Then, the murderer is likely to be in—"

He drew an intersection of the three moving trajectories, and circled the two wards at the intersection: "Here."

The students stared at Yue Xingwen dumbfounded.

After a while, Liu Zhaoqing gave a thumbs up: "The more detective, awesome!"

Zou Yuhang expressed admiration: "Brother, aren't you from the Chinese department? How do you know how to analyze motion trajectory?"

Yue Xingwen explained with a smile: "I have a friend in the mathematics department, and I learned the method of trajectory analysis from him. If he took this test, he would definitely quickly find the connection between the time of death, the path of movement, and the location of the murderer. "

Everyone: "..."

With a squad leader like Yue Xingwen, can everyone get points if they lie down and win?