After Tao Gan waited for the dizziness to pass, he shook his head, and Tao Gan criticized fiercely in his heart for such a rough and direct teleportation.

When I came back to my senses and looked up, I found that the space on the third floor was really small compared to the second floor, and it was the size of a room that could be reached in a few steps, surrounded by dark walls that surrounded the room, which seemed extremely cramped and airtight.

Tao Qian didn't know what the test of this floor room was for a while, so he could only open his eyes and close his eyes and try it once, but found that the scene in front of him had not changed at all, and he couldn't help but wonder in his heart, could it be that there were other mysteries on this floor?

Tao Qian repeated the action of opening and closing his eyes again, but there was still no change, this time Tao Qian had to give up, and then probe in the room.

Knocked on the left, hit on the right, look at the top, stomp on the ground, but still didn't see any reaction, this time Tao Qian was completely out of luck, sitting on the ground a little helpless. But the next moment, just when Tao Qian was worried, suddenly a mouse burst out.

Mouse? How can there be rats here? I don't have any holes no matter how I look at it, so where did this rat come from?

Tao Qian stared at the mouse, his eyes didn't blink, and just when Tao Qian thought he was hallucinating, the mouse suddenly ran to the corner, and then disappeared out of thin air!

Well? Tao Qian shook his head, blinked, and after making sure that it was not an illusion, he came to the place where the mouse had just disappeared, and touched his hand, and as a result, half of his hand disappeared.

Tao Qian felt that the breakthrough point was here, his hand continued to stretch in, and suddenly he felt that he had grabbed something, pulled it out, and sat back suddenly, only to find that what he was holding in his hand was actually a delicate mechanism box.

The box is transparent on four sides, covered on two sides by dark black planks, each with a diagonal line. These four transparent faces, in turn, contain a bunch of gears, three wooden figures, an iron ball, and a mirror. Tao Qian thought to himself, this is probably the final puzzle.

Tao Qian fiddled with the box in his hand left and right, and he didn't have any clue for a while. Putting down the box, Tao Gan put his hand into the hidden space just now, but no matter how he touched it, he couldn't touch anything, and in desperation, Tao Qian had to give up.

Immediately picked up the box and looked left and right, hoping to find something. Tao Qian observed that on the gear surface, after opening and closing his eyes, there are fixed upper, middle and lower three gears, and two of them will always disappear; The wooden face did not change much after opening and closing his eyes; The most special thing is the surface of the iron ball, when maintaining observation, the iron ball rolls down from the top to the bottom according to a certain path, and when you open and close your eyes, the path of the iron ball completely changes.

Tao Qian knew that although he wanted to solve this puzzle according to the laws of quantum mechanics, this puzzle was too clueless. Helpless, Tao Qian could only try to solve it one by one.

First the gear surface, now the upper and lower gears are in, the middle gear disappears, after several closed eyes and open eyes to try, it is found that the disappearance of these gears is a fixed result, is the mutual arrangement and combination between each gear. There are three gears, that is to say, there are three combinations of upper, middle, up, down, and middle.

When it comes to the wooden face, it is still the same as just now, no matter how he opens and closes his eyes, there is no reaction. But Tao Qian did not give up, from different angles, different directions, continued to observe, and found that there was still nothing.

So come to the iron bead surface, between opening and closing the eyes, also found the law, if you observe for a long time, then after opening your eyes and closing your eyes, the trajectory of the iron ball is "left and right", if the observation time is short, then the trajectory of the iron ball is "left and right", if the observation time is very short, then the trajectory is "left and right".

Tao Qian closed his eyes and thought slowly. If this box is solid on the inside, then where did the disappearing gears go? The box is closed, so it's unlikely that the vanished gear went somewhere else, and should have moved inside the box, so the box should be hollow.

On the other hand, the iron bead surface is probably made up of some strips that cannot be seen but can be observed, and it is called a wooden strip for the time being. These sticks change depending on the length of time they are observed, forming different paths.

And the wooden face has no clue for the time being. "Huh?" Suddenly, Tao Qian, who opened his eyes, saw some faint carved lines on the wooden face, and these carved lines seemed to connect something. Tao Qian followed the trajectory of these carved lines and found that each of them was connected to a wooden figure.

Looking at the last one, the mirror, Tao Qian guessed that this mirror should be used for the same purpose as the mirror on the second layer, for his own observation. Tao Qian found that there was a missing corner at the mirror, and when he broke it slightly, he found that the mirror could be broken and placed in different directions and angles, but the end section was still connected to this side, so only two other faces could be observed.

Tao Qian rotated the box and analyzed it. If the inside of the box is hollow, then the disappearing gear should not have disappeared, but entered the inside of the box, but the inside of the box is only used to put a disappearing gear.

Suddenly, Tao Qian's inspiration flashed, does this gear have to be isolated? It is possible that the gear did not disappear, nor did it just sit inside the box, but went to other sides and played a different role.

The more Tao Qian thought about it, the more he felt that this was possible, he came to the gear surface, opened his eyes and closed his eyes to adjust the gear surface to the style of "left, right, left, left", and then observed the other faces. Really! He noticed that the carved lines of the wooden man's face had changed, and one of the three wooden figures no longer had a carved line connected to it.

That's it! Tao Qian was very excited, his analysis was right, the four sides of this box were really not independent of each other!

Tao Qian continued to experiment, and then changed the gear surface into a "left, right, left, right" style, and then looked at the wooden face, and sure enough, there was a wooden figure without the connection of the carved line. But then, Tao Qian was disappointed, and he changed the gears to the last "left, right, right" style, but the wooden face did not change in any way, but there was an extra carved line.

It's hard to get it now! Tao Qian was a little disappointed, but he was somewhat prepared in his heart, and he didn't think that such a simple rule would be the key to solving the puzzle, but at least he had taken a big step. Tao Qian changed to the surface of the iron ball, changing different paths, but he couldn't find what to do with the iron ball.

Tao Qian watched the iron bead roll left and right, but he always knew on this surface, could it be that he wanted this iron bead to enter somewhere, like a gear, to the inside of the box? However, no matter how much he changed his path, he could not find any way into the box.

Tao Qian had no choice but to switch to the mirror surface again, fiddling the mirror to different angles and directions, and found that when the mirror was placed flat on one side of the box, the iron bead surface and the black wooden board surface could be observed at the same time. Tao Qian keenly noticed that there was a slight difference between the image in the mirror and reality, and there was an oblique carved line on the surface of the iron bead in the mirror, which passed through the two diagonals and connected with the diagonal line on the black wooden board.

Tao Qian changed the path, and when he changed the path for the second time, he found that when the iron ball rolled down to the middle of the surface, it disappeared strangely, then appeared in the mirror, and then rolled diagonally to the black wooden plank, and then disappeared. At this time, Tao Qian shook the box and found that the sound of iron balls hitting the wood sounded inside.

At this time, Tao Qian's inspiration flashed, followed the path of the iron ball surface, listened to the sound of the iron ball in the box, flipped the angle of the box, and let the iron ball move in the path of the iron ball surface inside the box, and then only heard a "click", the iron ball seemed to have entered somewhere, no matter how it shook, no matter how it flipped, the iron ball did not move.

It's done! Tao Qian's heart was overjoyed. At this time, looking at the wooden figure's face, all the carved lines had disappeared, and the three wooden figures began to move, one running, one jumping, and one constantly spinning. Then the gears on the gear surface also began to run, and Tao Qian opened his eyes again at this time, and found that all three gears appeared, linked to each other, and ran together.

The next moment, there was another "click", and a black wooden board above the box opened, revealing the structure inside. Sure enough, it was exactly the same as Tao Qian's conjecture, there was a gear gap inside, and there was a path trajectory exactly the same as the current iron ball surface, and in the center, an iron ball was located in a hole, constantly rotating.

The whole organ was like a natural thing, interrelated and independent of each other, and Tao Qian couldn't help but sigh at the great wisdom of the person who made it. Suddenly, Tao Gan felt that the tower began to vibrate, and the next moment, there was another wave of dizziness, and Tao Qian came to the space on the top floor.