Panda Criminal Investigation Team

"While in the hospital,

Have you read the books in school? "Yu Renjie asked.

"Seen,

I'm afraid I'll fail the make-up exam again. Li Qianqian showed a bitter smile: "If you fail the make-up exam, you have to retake it.

But there are still a few courses in my freshman and sophomore year that I haven't had time to retake,

For example, I failed college physics, advanced mathematics, marketing management, accounting management, C++,

and also…"

Yu Renjie was not interested in which courses she failed,

He hurriedly flipped through Hao Jinyang's notebook,

Finally, he found what he was looking for on a certain page: "September 9, the day your condition worsened, did you read the book?"

"Let me think about it...I felt fine that day,

I did read the book for a while, and did some questions, but I was exhausted later,

Headache,

I felt like vomiting, so I didn't continue to read. "

"Do you remember which book you were reading?"

"Let me think about it again..." Li Qianqian bit her lip,

Looking at the pile of books at her feet: "This, this,

and this one,

Because I can't see in,

So look at it differently. "

"Are all these books brought from school?"

"Um,

At first I thought it was not a big problem,

I went to the hospital directly from the library, and I carried the books in my schoolbag. "

Li Qianqian selected two books, "Management Accounting" and "Advanced Mathematics Volume II", in addition to a copy of an advanced mathematics workbook.But Yu Renjie said: "Kimchi,

pack all these books,

Take it back in a while. "

Hao Jinyang opened his mouth wide: "All of these?"

"These, all." Yu Renjie took out a crumpled cloth ball and two crumpled paper towel balls from his pocket, and he stuffed the paper towel balls back. Yu Renjie handed the shopping bag to Hao Jinyang: "Just use this."

Hao Jinyang glanced at him hesitantly, and began to pack the books on the hospital bed slowly. After putting all the books on the bed into shopping bags, he went to the bed again, picked up the joke books on the cabinet and stuffed them into the bag, but Yu Renjie Stopped him: "This is what I just brought, what are you going to do with it?"

Hao Jinyang kept winking at him, but Yu Renjie didn't understand, and asked him if his eyes were uncomfortable. Hao Jinyang was anxious, and blurted out: "Oh, you just want to come back for your two books. Let’s take away the little girl’s book together!”

The good-tempered Yu Renjie couldn't help stepping on him: "What are you thinking, I suspect that the paper was poisoned!"

"Li Qianqian has the habit of licking her fingers while reading a book. She reads a page and licks a page...the toxins on each page are limited, so it is a chronic poisoning. She is also a scumbag and likes to cram, so the time of the two poisonings was before the exam. The timing is right too!" Hao Jinyang took a deep breath and said excitedly: "As for the recurrence of the illness, she obviously didn't eat anything suspicious, but the toxins in her body still increased, because she read a book on a whim! But brother... how do you know she likes to lick her fingers?"

As soon as the question was uttered, Hao Jinyang found the answer by himself.Now there are three books left on the bedside table, namely the pink cover novel that Li Qianqian's roommate gave her, and the two joke books brought by Yu Renjie, all of which were brought after the day when Li Qianqian's illness relapsed.

Yu Renjie's two joke books were bought a year ago, and he has read them many times. Apart from the yellowing of the pages, they still maintain a brand new appearance.But Li Qianqian's favorite novel for young girls was brand new when she got it. Now the paper has been completely deformed, and the pages of the book are wavy from the side.If you observe carefully, you will find that only the outer edge of each page is deformed, and the deformed place on each page is very close to the place where Li Qianqian's saliva-stained fingers touched.

This feature can also be found in her other books, especially the textbooks. She has turned over the important parts more than once, and the deformation of the paper is more obvious. On the other hand, for those parts that have no test points, the paper is still as flat as before, and the difference is very significant.

If only one book is like this, it is very likely that the book has been flooded, but if every book is like this, then it is more likely that the owner of the book has a bad habit-like turning the pages. lick fingers.Li Qianqian's right index finger turned white, which was the result of protein denaturation after exposure to heavy metals, further confirming this conjecture.

When Hao Jinyang came back to his senses, he found that Li Qianqian looked at him with unfriendly eyes. Then he realized that he had called her a scumbag by name just now, and subconsciously imitated her licking her fingers.When he licked his fingers, in order to appear more lively, he made several pee pee pee, just like an old lady with a shrunken mouth.But Yu Renjie is also frowning at this moment, he doesn't understand - he finally made a major discovery, he should be happy.

I saw Yu Renjie hooking his fingers to him, his expression and movements were exactly the same as Cheng Bin's: "Bring me the book again."

Hao Jinyang handed Yu Renjie a large bag of books, and Yu Renjie poured the books down again, covering the whole bed.When the book fell down with a clatter, two words came suddenly from the next bed: "I'm sick!"

Yu Renjie turned his head and found that the curtain had been closed again.He shook his head, refocused, and groped among the books.

"You have stopped taking Prussian blue for the past two days, and the toxin level in your serum has not increased. What books have you read? Have you read the accounting and advanced mathematics you mentioned just now?"

"I've seen it, although not many." Li Qianqian replied in a low voice.At this time, the aunt in the next bed yelled again: "Nonsense, I am reading novels and watching Korean dramas, laughing so hard, so nympho! It's so noisy!"

Hao Jinyang wanted to go to the next door to find out, but was stopped by Yu Renjie. Yu Renjie also thanked the next door before continuing the conversation: "You said that when your roommate came to visit you last time, he brought you some books, right? ?”

"Yes, these books are all brought by them."

"Which ones?"

Li Qianqian pointed to the three textbooks of "Principles of Economics", "International Trade" and "Industrial Economics", in addition to all the printed products.Among the three books they brought, only "Industrial Economics" had a library label on it, while the other two were clean and clean without any stickers, obviously just bought from a bookstore.

Yu Renjie flipped through the "Industrial Economics" casually. When the pages were turned, the breeze blew some of his forehead hair: "When they came, did they take any books with them?"

"Ah, yes!" Li Qianqian pointed to the copy of the high mathematics exercise set: "The book I borrowed from the library last semester was due, and they made a copy for me, and they came here to bring the expired book with me. Go back and drop it."

"Who are you talking about, exactly?"

"Yang Ying."

"You know her boyfriend is from the Department of Chemistry, right?"

"It can't really be her!"

Li Qianqian covered her mouth and said that at this moment her face was no longer grayish-yellow, but still as white as the paper of a book.

Before Li Qianqian's two poisonings, she held the high math exercise book and studied it. Every time she encountered a problem, she would subconsciously bite her nails, and sometimes turned the pages anxiously... On the morning of September 9, she felt a little recovery, and She took out the exercise set for review, and because she couldn't read it, she kept turning the pages back and forth... Shortly thereafter, she felt dizzy and nauseous again, and after a blood test, she found that the toxin index rose slightly.After Yang Ying and the others came the next day, they took the book away, and her condition never recurred.

Li Qianqian, who was joking just now, suddenly became nervous. She pursed the corners of her mouth tightly, her expression a little dazed.After a while she opened her mouth, kept biting her nails, and rocked back and forth on the bed: "Yes, yes... She was the only one last semester... I just thought, why is she so kind!"

Li Qianqian told Yu Renjie that Yang Ying had enough time to commit crimes. At the end of last semester, everyone went to the library to grab a seat to review their homework, and Yang Ying stayed in the dormitory alone.She said that the dormitory was the quietest place because everyone had left.

"There is no air conditioner in the dormitory, and I don't go to the library on such a hot day, probably to poison my book!" Li Qianqian gritted her teeth and said, "I borrowed this exercise book a long time ago, and it has been kept in the dormitory. It has been several months! She never urged me to return it before, but this time I called the police, and she came to return the book for me, why is this woman so insidious!"

While Li Qianqian was yelling, there was another creaking sound of wooden boards from the bed next door, this time it was the aunt who deliberately turned over.Hao Jinyang scolded at the other end: "Why are you like this, the little girl is poisoned!"

Not only did the aunt show no remorse, but she turned over even harder and kicked off the bed board. Hao Jinyang didn't open the curtain and jumped to the next door under Yu Renjie's restraint.The bed next door was quiet for a while. Seeing that they didn't respond, he said, "Comrade police, can you quickly finish your questioning and leave quickly? I can't sleep well at night, and I won't sleep during the day. Is there any law left?"

Hao Jinyang wanted to get up to argue with her again, but Yu Renjie pushed her back: "We are disturbing others, so hurry up and take a photo of this book, then pack it up, let's go."

Zooming in on the photo, Yu Renjie wrote down the title of the book of advanced mathematics exercises that was suspected to have been poisoned - "Advanced Mathematics Study Guidance and Selected Solutions to Exercises", published by Tongji University Press, priced at RMB 30.

After coming out of the hospital, Yu Renjie stretched his waist and threw the car keys to Hao Jinyang: "I will take the subway back to the police station with the book, and you can go to the X University Library to find the book that Li Qianqian borrowed, by the way Return your commemorative coin."

Hao Jinyang said good, then patted his thigh: "The commemorative coin is still in my drawer!"

"Then let's talk about it next time. Find that book first."

Two hours later, while Yu Renjie was happily nibbling on his Long Nose King sandwich roll, Hao Jinyang called.

"Brother, there are 27 volumes of 'Advanced Mathematics Study Guidance and Nahaha' in the library of X University, 18 volumes have been lent out, and 9 volumes are left. Now all the collections in the library are in front of me."

Yu Renjie crossed Erlang's legs and squeezed his long nose king out an inch: "Is there the one we are looking for among the nine?"

"No, the number of the book that Li Qianqian lent out is W27-209, and now I have the book with this number on it, but it's a new book."

"As expected," Yu Renjie bit off the sandwich roll and made a crisp clicking sound: "Kimchi, make a record of the librarian's interview, make a copy of Li Qianqian's loss compensation slip, and then You can come back."

"Okay, I'll do it right away."

"Also, and, if there is a camera in the library, capture the picture of Li Qianqian returning the book." Yu Renjie paused, and then said: "It doesn't matter if it doesn't, anyway, it doesn't explain anything."