The eyebrows in front of the hall are shaped like a sickle, and they were once misaligned in the palace.

These two sentences don't seem to be very compatible in terms of artistic conception, and they are also a mess in terms of rhyme, which doesn't look like a famous work, but more likely to be a smug study by an unknown talent. There are many lovers of poetry in the reading room of Chinese culture, and they have a lot of discussions, wanting to start with the dynasty that determines the verses, but they start to argue because of disagreements.

Xiang Nanxing stared at the two lines of poetry for a while, and his gaze slowly moved up, and finally landed on the line "To the Campus Detective".

He sighed thoughtfully, walked away from the chattering crowd, found a relatively quiet corner on the edge of the hallway that didn't disturb the others, and then pulled out his phone and dialed a frequently contacted number.

"Hello, why are you free to look for me today?" The voice on the other end of the line was as flirtatious as ever.

Xiang Nanxing didn't bother to talk nonsense with him: "Where are you?" ”

"What's the matter, why do you suddenly care about my whereabouts?"

"You're in the library, aren't you?" Xiang Nanxing went straight in, "Just like a criminal always likes to return to the scene of the crime after committing a crime, you will stay in the library just to observe how I react when I see those things." ”

There was silence on the other end of the line.

"I don't understand the gibberish behind you, but you guessed it right, I'm in the library right now." The other person said, "What do you mean by 'those things'?" ”

"Is today's game a fool?" Xiang Nanxing smiled, "If there is anything to say no, just say no, write riddles on the bulletin board, and play this kind of open detective game, will it be a little too public?" ”

"Then I get it. You're talking about what happened in the Reading Room of Chinese Studies. ”

This time, the voice came from the phone and behind him at the same time, Xiang Nanxing turned his head and saw that the person who was talking to him was standing at the staircase, holding the mobile phone and looking at him with a smile. "Just, why do you think I did it?" The man asked into his phone.

Xiang Nanxing pressed the call and strode towards the man.

"Because of the people I know...... No, you're the only one in this university who would do such a boring thing. Liang Jingmo! ”

He forced his eyes to look at Liang Jingmo, but the latter looked around innocently: "It's too much for you to say that, there are more people in the world who are more boring than me." Wouldn't it be too arbitrary to try to determine a prisoner based on such subjective speculation? ”

He suddenly turned his face and looked at Xiang Nanxing with a smile: "Or, do you already have any evidence?" ”

"That's what I mean." Xiang Nanxing also smiled, "You mean to say that unless I solve the puzzle, you won't admit it anyway." ”

He turned around and strode towards the reading room of Chinese studies. There were still people watching the discussion in front of the bulletin board over there, but there were fewer people than just now. Most of the people who couldn't solve the puzzle had already given up and left, so Xiang Nanxing didn't have much effort to squeeze to the front of the bulletin board.

"Liang Jingmo, you're watching." He said in a deep voice.

"Yes." A leisurely answer came from behind him. One of the onlookers recognized the newly hired lecturer and respectfully made way for him.

"Okay, I'll show you now." Xiang Nanxing pointed to the second line of words on the bulletin board, "First of all, this questioner doesn't know whether it was intentional or unintentional, and used a very misleading expression in the title - 'verse'. This statement may not attract attention elsewhere, but miscellaneous poems are poems anyway, and coined sentences can also be called poems. But in the eyes of a bunch of nerds in the reading room of Chinese culture, since it is said that it is a poem, there must be a source, so they all want to follow the source of the poem to find clues, ignoring the simpler possibility. ”

His fingers moved down and landed in the center of the next two sentences.

These two lines are not poems, but riddles. More specifically, anagrams. Because the questioner's cultural literacy is not high, he thinks that as long as he puts five or seven words together, it is a poem. ”

"I see!"

His words stirred up a wave of sudden realizations around him, but Liang Jingmo only smiled: "Before you really solve them, isn't your 'anagram' just a guess?" ”

"That's right. I've unraveled it though. ”

Xiang Nanxing smiled confidently, pushed everyone away and walked out of the door. Someone wanted to follow him to see what kind of answer he had solved, but in the end, like the others, he stayed in front of the bulletin board and began to try to solve the anagram on his own under the new inspiration.

Liang Jingmo smiled and followed, he kept a few steps away from Xiang Nanxing, did not talk, and his face looked confident. However, when he saw Xiang Nanxing walking up the stairs and going straight to the third floor without hesitation, his face finally changed slightly.

"No, you really figured it out?"

"It's a very simple anagram." Xiang Nanxing said, "The eyebrow moon in front of the hall is like a sickle, this is a riddle with a word split and pictograms, the word 'hall front' is to take the first half of the word 'hall', that is, the word 'factory', 'eyebrow moon' is the meaning of the crescent moon, this shape looks like the 'apostrophe' in the Chinese characters, as for the final 'shape like a sickle', think about the shape of the sickle, put it in the strokes of the Chinese characters is like a 'horizontal bending hook', the combination of these three things is a 'calendar' word. ”

Liang Jingmo held his chin and nodded approvingly: "This explanation seems to make a lot of sense." So how to explain the next sentence of 'once the wrong marriage in the palace'? ”

"That's a 'history' word."

"What's the principle here?"

"I don't know."

Liang Jingmo was surprised: "I don't know how you solved it?" ”

"When I was a child, I had nothing to do but flipped through the riddle book, and there were anagrams about the surnames of hundreds of families, and I memorized some." Xiang Nanxing said angrily, "And this riddle doesn't need to be solved at all." Since the questioners have limited the scope to the library, and the first word clearly knows that it is 'calendar', then the answer is not obvious. 'History'! ”

"You're cheating!" Liang Jingmo complained.

Xiang Nanxing glanced at him provocatively: "This is also a helpless thing, because the cultural literacy of the person who wrote the question is limited." If you want to make an anagram, you should at least create an original one, and the riddles copied from the book are simply insincere. ”

He pushed open the door in front of him with the sign "History Reading Room" and strode in. Liang Jingmo looked at his resolute back, shook his head with a wry smile, and whispered:

"But you don't know how hard it was for me to find such a fitting sentence."

Xiang Nanxing didn't react, and he didn't know if he heard his self-talk. Liang Jingmo shrugged with a wry smile and followed him into the reading room. Seeing Xiang Nanxing walking briskly between the bookshelves, looking around for clues, he couldn't help but say, "How can you see clearly when you walk so fast, are you sure that the clues won't be hidden in more hidden places?" ”

"No, because the guy who set it up has a limited amount of time." Xiang Nanxing said lightly, "If my guess is correct, this time the puzzle should be chain-like, with one clue pointing to another until the treasure is finally reached." But in this way, there is a problem. ”

"What's the problem?"

"Even if the content of the puzzle can be thought out in advance, it should not be arranged too early, otherwise it may be disposed of by the teacher or security guard who is on patrol." Xiang Nanxing said, "I came to the library today completely by chance, just because there is a part of the homework that needs to be consulted. The guy who set up the scene......"

He glanced at Liang Jingmo deeply and paused before continuing.

"That guy was very smart, and if he had seen the homework on the blackboard, he would have guessed that I would be going to the library to look it up, and he would have rushed here to prepare it from that time. But even so, the time left for him is about ten minutes at most, so the number of puzzles will not exceed five, most likely three or four, and each puzzle should not be set up too complicated mechanics, and it is better to be as simple and straightforward as if it were written directly on the bulletin board. ”

His gaze quickly swept over the bookshelf: "According to my guess, this should be something that can be seen directly in the past." ”

He said as he continued to search the shelves. Liang Jingmo on the other side was silent for a while, and suddenly said for no reason: "Hey, she's here again, you know?" ”

"I know, so what?" Xiang Nanxing didn't look back.

"This is the third time. Although she has visited many places in the world, there is only one place, Tianjing, which she has visited three times since she ascended the throne. Liang Jingmo shrugged, "I think she shouldn't just be here to visit." ”

"Are you thinking too much?"

"You've thought about it, haven't you?" Liang Jingmo said leisurely, "I just said, 'She's coming', how do you know who I'm talking about." ”

Xiang Nanxing's footsteps suddenly stopped, and he was silent as he saw the bookshelf.

Liang Jingmo continued: "And the first two times she came to Tianjing, you 'justly' traveled with Miss Nangong in other places, and you didn't come back until after she left, once can be said to be a coincidence, what about twice?" ”

He approached Xiang Nanxing and asked in a low voice, "Is it because you can't let go of the past?" I've heard that you're fighting side by side in the end, and I thought this was a good idea. Or do you have another reason to avoid her? ”

"This is it." Xiang Nanxing said suddenly.

"What?"

"I said, this is the clue to the history reading room."

Xiang Nanxing turned sideways, revealing the bookshelf that had been blocked by him. On a light brown wooden shelf, just below its number "14", someone pasted a yellow sticky note with the word "IIII" written in a black oil-based pen.

"Very interesting question." Xiang Nanxing looked at Liang Jingmo and seemed to smile, "I think someone is mistaken." ”

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