Library puzzle solving strategy
First, turn on the light.
When looking for the first plot prop, you will encounter a classic puzzle solving link, which requires the player to light up nine lights at the same time. You only need to light any diagonal lampstand in turn, then light another diagonal lampstand, and finally light the middle lampstand.
Lighting can be carried out in the order shown in the following figure, where the order of 1 and 2, 3 and 4 can be interchanged at will.
Second, push the mirror.
When looking for the third plot prop, you will encounter a puzzle solving link, which requires the player to adjust the position of the mirror and let the laser reflect on the rune through the mirror.
Here we can first investigate the body near the lower right corner of the room and get the answer to the puzzle from him.
After getting the answer from the corpse, a luminous blue box will appear on the ground where the mirrors are placed, which represents the correct position of each mirror. Just observe the golden lines on the ground, find the mirror on the same stripe road as the blue box, and then push it to the position of the blue box, so that the laser can hit the rune through the reflection between the mirrors. After that, as long as one more mixed battle is carried out, the puzzle will be completely solved.