"The thing is in the box, and the riddle is the answer."

This unclear sentence is the whole clue of the letter.

Literally, it's simple: the "next letter" Lan Silin said is placed in a certain box, and as long as the box is found and the "thing" is obtained, the puzzle is solved.

But if you think about it, there are still many suspicious places.

The first question is: what does "stuff" mean?

Although Lan Silin has stated that she is looking for the "next letter", there is a high probability that this so-called "letter" is not a letter wrapped in paper in the traditional sense, because the first "letter" that Lan Silin handed him through Fang Chang was not of this type.

It was just the last page of a book of fairy tales that had been torn out casually.

Thinking of this, Li Weiyin's eyes lit up.

"The mystery is the answer". This sentence is ambiguous and it is impossible to determine what it really means, but it seems to say something about it when applied to the current situation.

The riddle can refer to both the phrase "the thing is in the box" and the "first letter", which is the paper itself.

Li Weiyin didn't believe that Lan Silin tore out the last page of "Tin Man" and kept it for herself, because she didn't have scratch paper at hand.

Because he asked the girl to bring this book with him. And he clearly saw that before Lan Silin could touch the book, the girl handed it to the instructor next to her.

This means two possibilities.

One is that Lan Silin had been prepared for a long time, and had torn off the last page of the book before entering Kanglong Academy and carried it with her, so that she could hand it over to herself as the "first letter" at the right time.

And as for the second ...... Through unknown means, Lan Silin retrieved the book and tore the page off.

After careful consideration, Li Weiyin quickly ruled out the first possibility. Because every student would be locked up for seven days before entering Kanglong Academy, Lan Silin was not surprised.

Before being confined to the cell, each student undergoes a very inhumane body search, and the girls are even forced to take off their bras in order to prevent the students from bringing any personal belongings into the boring room.

Kanglong College is afraid of taking responsibility, and if the students hide any personal belongings on their bodies, they may use them to commit suicide.

In other words, it is impossible for a student to have any personal belongings the moment he or she comes out of the boring room.

After ruling out this possibility, the answer is pretty obvious.

Lan Silin did succeed in getting the book back, but no one knew what he was doing.

Li Weiyin's thinking has once again fallen into a dead end.

The bell rings in the dining hall and lunch time ends. He suddenly came to his senses, closed the lid of his lunch box, got up and left, merging into the flow of people leaving the cafeteria.

He felt inexplicably irritable.

I had inadvertently thought so much about that puzzle.

He didn't care about any of that at all. He didn't care about his life in the academy, nor did he care about his future, and his investigation of Lan Silin could only be regarded as a kind of self-protective curiosity at best.

But Lan Silin seemed to have insight into this.

He used his curiosity about him to set up the puzzle. I almost got into it, thinking seriously about the answer to the puzzle, but ignoring why I was thinking about it.

Why did he want to solve Lan Celin's puzzle?

He didn't need anyone to save him.

He could leave Kanglong on his own. It's just that he has nowhere to go...... Or rather, it's the same everywhere he goes—that's all.

Lan Silin's approach to setting the puzzle is as if he were a random toy, like a child covering an ant with a glass upside down and watching it escape with great interest......

This made Li Weiyin feel sick.

He tucked the lunch box under his arm, pulled out the crumpled ball of paper, unfolded it and pinched the corners, intending to tear it apart.

Tearing it a little, he paused again, crumpled it in a frustrated ball, and tucked it back into his trouser pocket.

In the afternoon, the activities of the zero-breaking class were still boring, nothing more than mechanical physical training, and the students were tired half to death. Especially after Lan Silin left, many instructors seemed to be freed from the shackles, and the students were trained to intensify, and the screams and cries on the playground were endless.

Li Weiyin was punished for running 50 laps, or 20 kilometers. He ran around the playground without saying a word, and in order to divert the pain in his lungs, which was almost impossible to breathe, his brain began to mechanically begin to coordinate his bodily functions, and by the way, he thought:

Your stride, your speed per second, how much it takes to complete a lap, multiply by fifty......

Three exhales and one inhale, three exhales and one inhalation......

The girl on the other end fell and walked towards her instructor, surnamed Liu. The instructor liked to drag girls by the hair, and Mr. Lee remembered that he had a mild pedophilia.

In the distance, an instructor was smoking. Smoking is not allowed at Kanglong Academy, even if it is an instructor. But only his colleagues and students saw him smoking, and the students did not dare to denounce him.

What was Lan Celin's method of getting back that copy of "Tin Man"?

With his knowledge of Kanglong Academy—Li Weiyin knew more about the academy than any student, because he was an Asperger's patient and had a strong desire to control information—no one knew where the confiscated personal belongings were stored and who kept them.

If Lan Silin was going to find the book, he would first have to find the place where the book was kept.

It could be a security room, a storage room, an office, or even a principal's room.

The things were placed in the box—judging by the rigor of Kanglong Academy's care, the so-called "box" must have been locked.

Because most of the students' personal belongings include mobile phones, if the box where the personal belongings are stored is not locked, once the student steals the mobile phone, he can report it to his family.

The first step is to find the box; The second step is to find the person who cares about the box, and that person must have the key, and the third step is to find a way to steal the key and open the box......

Li Weiyin frowned, refuting his guess.

From the third step, the problem arises.

He put himself in Lan Silin's situation, as a student of Kanglong Academy, it was impossible to steal the key to the box casually - if he took 10,000 steps back, even if he stole it, he would not be able to enter the place where the confiscated items were stored.

If he didn't steal it, how did he do it?

No, Lan Silin stole the book, it was an established fact, and he had to use it to work backwards to find clues that he had overlooked......

There was an exclamation ahead, and another unconscious student was woken up by a bucket in the stands.

Li Weiyin suddenly came back to his senses, panting.

- I unconsciously began to think about the puzzle that Lan Silin left for herself.

He was so stunned that he didn't even realize it.

Li Weiyin continued to run, but the manic depression in his heart was like a tidal wave, and he hated the feeling of being toyed with in the palm of his hand.

"Find the next letter, and then find your heart."

These two sentences are still in a commanding tone.

Li Weiyin snorted from the bottom of his heart.

If you're really entertained by his puzzles, it's better to just tear up the note now.

He thought hatefully in his heart.