In the brightly lit exhibition hall, there is a famous painting in almost every corner, the introduction on it is all by Jin Xi, and in front of a famous painting wrapped in a metal frame, Ling Yu and Qin Jian are standing there.

Through their observations, they noticed that all the famous paintings in this exhibition hall were from the 19th century onwards, that is, after 1900. But there is only one special one, which is the painting in front of Ling Yu and Qin Jian now. Yesterday, Qin Jian was also standing in his current position. It is the painting in front of me, and it is also the only famous painting before the 19th century in the entire exhibition hall.

The date on yesterday's painting was 1882, and the date on today's painting is 1993, a difference of eleven years. What is the purpose of this? And yesterday all the collectibles here did not have a brief description on them, and today everything is marked below, but today all the collectibles have also been replaced with famous paintings.

Ling Yu and Qin Jian couldn't figure out this matter before the famous painting, and they might have to wait until the evening to discuss it with Chu Ming or Han Mo and the others. They have all experienced different things, as well as Zhang Xiaoqian and Yin Fei'er, for the same thing, different people may have different ideas, so that everyone's ideas are put together with each other, like pieces of a puzzle, and in the end they are all gathered together to form a complete puzzle.

And now, Chu Ming and Shu Xiaoran were still wandering around, to see if they could find anything new, while Han Mo and Wen Ya were in the corner of the wall, and Han Mo had been suspicious of the gap between the ground and the wall since last night. Although all the arrangements in this exhibition hall have changed today, the gap in this circle has not changed here.

At the same time, Han Mo heard that it was about zero o'clock last night, and there was a faint sound in this museum, although the sound was very small, and the small one was almost inaudible, but Han Mo was a criminal policeman, and his hearing was extremely sharp compared to ordinary people, and it seemed to be similar to Qin Jian.

The small sound was similar in magnitude to the sound of time walking, and from the source of the sound it sounded like it was from the other side of the room where they were eating. And just last night, after Han Mo watched Wen Ya fall asleep, he wanted to stay in that room for a while, because he entered the room with Wen Ya during dinner, maybe he thought he would find something in that room.

Even if you can't find any clues in that room, you can at least find a suitable environment to provide yourself with reasoning, if you are in the room, you may not be too attentive.

[11 p.m. last night]

When Han Mo pushed open the door of the room and came out, he saw Yin Fei'er and Zhang Xiaoqian who were walking towards their own room, as if they had just come out of the dining room.

After Han Mo greeted them, he walked towards the room alone. The lights in the room had been turned off by two people, Han Mo felt the darkness to find the switch of the light, and he turned on the lights in the room.

In an instant, the bright light entered his eyes, and he subconsciously squinted his eyes. Then he saw that there was still some food on the table, but there was not much left. He stepped forward and walked over to the table full of leftovers, where there were still a few cans of unopened drinks, Han Mo casually picked up one and opened the ring and drank nearly half of it. Maybe what I ate in the room with Wen Ya was a little dry.

He took a cursory look around the room, and there was really nothing special in it, nothing other than the usual furnishings. And this common ornament can be seen on the market, and compared with Jin Xi's works, it is just a bargain and not worth a few dollars.

But if I had to talk about the things in this room, it was the bookshelf on the side of the wall, which was to the left of the door that connected the room to the corridor, close to the wall, facing the window.

Han Mo paid attention to the window again, and he realized that there were a total of four windows in this room, and it was precisely because of this that although there was not too strong light outside during the day, the inside of the room still didn't look too dim.

At the same time, Han Mo noticed that on the top of the four windows, there was a lampshade on each window, and if you looked closely, there were tiny bulbs in the lampshade, and their direction seemed to be facing the bookshelf opposite them. But when Han Mo turned on the light just now, he noticed that there was only one switch in this room, which was the light in this room that he had pressed just now.

I've looked around this room several times, and I haven't found any other switches, so how should these four small lights be turned on? There is not even a switch, or is the four bulbs just an ornament.

Just as Han Mo was thinking about this, suddenly, there seemed to be some sound coming out, the clock at zero o'clock rang, and the clock on the wall made a "ding dong" sound. At the same time, there was a faint sound in the next room.

Han Mo didn't have time to take a closer look at the clock, he only glanced at it slightly and knew that it was zero o'clock, he walked directly towards the door, he tried to press down the handle, but the door had been locked by Ling Qi, and Han Mo had no way to enter the exhibition hall. But Han Mo was sure that there was a sound in the exhibition hall next door, but he couldn't be sure what this sound was.

The sound lasted for about a minute, and then all of it died down.

Then Han Mo walked to the clock in this room, and the second hand on the clock just went around, which meant that the sound started from zero o'clock and lasted for a minute and then ended.

And at this moment, Han Mo discovered another point! On this clock, the place where the hour, minute, and second hands are intertwined, which is the center of the dial, is not simply where the three time hands connect. Han Mo noticed that there was actually a button on it. After seeing this button, Han Mo immediately thought of the four light bulbs on the window just now.

Maybe this switch is the one that turns on the four light bulbs. When Han Mo was in this room just now, there were no other switch buttons, except for the switch that turned on the light just now, it was the button on this clock that he found now, unless there were other switches that he didn't find.

With the mentality of trying, Han Mo began to press the time on the clock, his thumb gradually approached the switch in the center of the dial, and the moment his fingerprint touched the switch, the spring behind the switch was squeezed, and the switch was pressed down all of a sudden.

Han Mo looked back at the four light bulbs on the window, but the result was different from what he thought, the four light bulbs on it did not change in any way, and did not become brighter.

It seems that his ideas are still a little lacking.

After giving up the switch on the clock, Han Mo walked to the front of the bookshelf, which was full of novels, some books about painting, and of course, some magazines. Han Mo casually picked up a magazine, the date on it was not very long from today, it should have been put by Ling Qi before, it seems that the books on this bookshelf Ling Qi are also updated from time to time.

There was nothing strange on the bookshelf except for books, when Han Mo turned his head to look at the time on the clock again, it was already 0:30 in the morning, and the time was not early, so Han Mo turned off the light in this room, left this room, and after returning to his and Wenya's room, he began to rest, but his mind was still recalling the sound made at midnight just now, as well as the four light bulbs on the window.

April 7, 2018

After thinking back to the events of last night, now there was only this circle of gaps in front of Han Mo, Wen Ya was by his side, and then squatted down like himself, close to his body and looked at the gap on the ground with himself.

"How? Did you find anything? ”

"Last night's sound must have come from this gap, but I don't know exactly how it came out, the door connecting our dining room to this exhibition hall last night was locked, so I can't get in, so I don't know what's going on."

"Last night's voice?" Wen Ya didn't hear anything because she had fallen asleep early last night.

"Yes, there was a 'squeak' sound in this exhibition hall last night, and then today, in just one night, this room has changed, and I suspect it has something to do with last night's sound."

"Could it be that Ling Qi took advantage of everyone's rest last night to replace all the decorations in the room?"

Han Mo lowered his head and thought for a while before replying: "I don't think it's very likely, there is no way to do such a big project overnight with his words alone, first move the original ornaments and then move the new famous paintings in, unless someone helps him, it can't be done." ”

Wen Ya nodded as if she didn't understand.

On the other side, Yin Fei'er and Zhang Xiaoqian stood in the center of the entire exhibition hall. Here, the two of them discovered a strange thing, the picture scrolls of the entire exhibition hall, except for the one hanging on the wall, all the picture scrolls were tiled on the display case, and there was a glass case to seal it. But in the center of this display case there are four display cases, and the four of them are relatively more concentrated, and at the same time relatively far away from the surrounding cabinets.

In other words, the four famous paintings on the four cabinets in the center may have been specially taken out, and they may have wanted to convey some message.

Zhang Xiaoqian and Yin Fei'er both took a step forward and looked at the contents of the four famous paintings in the center of the exhibition hall. As they got closer, the content of the famous painting also entered the eyes of the two people little by little......