The four of them went up to the third floor and began to repeat the path that Wang had walked that day from the study room. Pen ~ fun ~ pavilion www.biquge.info and it wasn't until this time that Yuan Fan didn't know that this classmate's name was actually "Classmate Wang", and he didn't know what his parents thought, wouldn't he laugh when he called his son's name?

"Generally speaking, I like to go to the study hall on the third floor because it's quieter than the two floors below." "And every time I come out of the study room, the route is relatively fixed, from this side to the staircase...... Then go down to the first floor. ”

"Wait!" When they walked towards the staircase and walked a little way, Jiang Xiangtian stopped a few people, "This is the only way to the staircase?" ”

"That's right, I always walk from this road, of course, you can also take the other side of the study room, but it's a bit of a detour over there."

Jiang Xiangtian looked up and said, "This seems to be a dead end of surveillance, think about it, did you meet anyone here at the beginning?" Maybe at this moment, you will encounter a thief? ”

Student Wang squeezed his eyes and thought for a while, and said, "This shouldn't be the case, there is not a lot of traffic here, and I don't seem to have met anyone." ”

Jiang Xiangtian nodded, and the few people continued to walk, and soon went downstairs to the door of the library.

"That's it, I really don't understand it at all, I'm 100% sure I put the book in my bag, how could it be gone?"

"Well, we'll write this into detail in our topic, and of course, we'll give you an alternative name, what do you think it's better to call it?"

Classmate Wang made a helpless expression and said, "Just call it Classmate Wang, what better place is there than this?" ”

After Mr. Wang finished speaking, he went up to the third floor, it seems that he is going to self-study again, what a diligent classmate!

"Yuan Fan, how is it? Do you feel like you've got something to gain? Jiang Xiangtian asked with a smile.

Yuan Fan shook his head and said, "No, but I still think he must have remembered it wrong, such a short journey, I think even if it is a thief, it is impossible to take the book from his schoolbag without anyone noticing." ”

"Hehe, that's because you still get too little information, Zhongfa, show him our results in the past two months!"

Jiang Xiangtian snapped a finger, and Xie Zhongfa took out a stack of A4 paper from his schoolbag and handed it to Yuan Fan. While Yuan Fan was reading the above content, the two of them actually ran to drink coffee, which was really unreasonable.

These A4 pieces of paper recorded the conversation between Jiang Xiangtian and the classmates who lost the book, and there were 14 students, and some places were specially marked. Yuan Fan nodded secretly, although this Jiang Xiangtian is a little out of tune and has wild ideas, he is still very meticulous about what he wants to do.

Looking at it, Yuan Fan seemed to have found something strange.

First of all, there are these fourteen people, and their majors are only three categories, that is, civil engineering, architecture and physics.

Second, on the day they lost the book, there was always a part of the road they walked in the library that was not covered by the surveillance footage, but in fact these locations did not overlap much with each other.

In the end, this point was deliberately marked out by Jiang Xiangtian on the A4 paper, otherwise Yuan Fan would not have noticed, that is, all the students who lost the book would mention that they had more or less written notes on the book.

"How? What did you see wrong this time? Yuan Fan was thinking about it, Jiang Xiangtian and the two came back with coffee, and brought a cup to Yuan Fan.

"Thank you," Yuan Fan took the coffee in his hand, "After reading these materials of yours, my feeling is that if someone really steals their books, then this person must be someone who is very familiar with the library's surveillance system, and he knows the location of all the cameras." And his methods must be very skillful, otherwise he would not have gone undetected once. ”

"It's not bad, but this kind of analytical ability can only get a passing score in my action group!"

Yuan Fan raised his eyebrows on the side and said, "But I didn't understand the key points you marked, they made notes in the book, what kind of useful information is this?" ”

Jiang Xiangtian shook his head and said proudly: "Hehe, this is where I observe carefully!" Are there any books that these people have lost in the school library? Pretty much everything! If the thief's purpose is to read these books, he can just take them directly from the library shelves, so why bother stealing students? Moreover, you should note that these students who lost their books have excellent grades. ”

Yuan Fan was stunned by Jiang Xiangtian, what can these mean?

"You must be thinking, what does all this mean?" Jiang Xiangtian smiled slyly, "Listen to me, from what I analyzed just now, it can be seen that this thief 'stole' not the book, but the notes of those top students in the book!" ”

Yuan Fan was taken aback, right! That makes absolutely sense.

"And ......," Jiang Xiangtian continued, "Xie Laojiao and I have seen the surveillance video of the library, and we spent two nights carefully observing, and found that when these classmates lost their books, none of the people around them appeared in all the surveillance videos. In other words, we can't even find a 'suspect' with the possibility of 'committing a crime'! ”

Yuan Fan sighed secretly, these two people really think of themselves as detectives, and they even watched two nights of video, hey? No, wait......

"You watched two surveillances?" Yuan Fan was shocked, "How can you see the surveillance?" Can you watch it for two more nights? ”

"Shh Jiang Xiangtian made a silent gesture, looked around, and found that no one was paying attention here, and he breathed a sigh of relief, "What are you doing so loudly, aren't you just watching a video!" You can rest assured, you will see it too. ”

"I ...... Will I see that too? ”

"That's right, but not now, now we're going to ......"

"Ahhh

As soon as Jiang Xiangtian said this, a girl's scream suddenly came from upstairs.

The three of them looked up at the same time, looked at each other again, and then they all reacted, the voice came from the third floor.

"Let's go! Go up and see the excitement! Jiang Xiangtian gave an order, and the three of them quickly ran up the stairs.

When I got to the third floor, I saw a large crowd of people crowded into the corridor on the right near the study room. The three of them squeezed all the way in with their shameless brute force - usually the people who stayed in the library were more modest, but if you squeezed into the cafeteria, you tried it? - I saw two schoolgirls in the middle of the crowd, and one of them was sitting on the ground wiping her tears!

"What's going on?"

A classmate next to him asked their doubts for them.

Another person said: "It's not very clear, it seems that the girl sitting on the ground was packing her things and was going to leave, who knew that when she walked here, she suddenly remembered that she forgot to take something, so she hurriedly turned around." As a result, when she turned around, she seemed to feel someone pulling her schoolbag, and then she saw a black shadow flashing, and she was scared to cry. ”

"That's crying? What a big deal! ”

After listening to the conversation between these two people, Jiang Xiangtian smiled playfully and said to Yuan Fan: "I have changed my mind, tonight, let's watch the video!" ”