When Qing Chen figured out "if you encounter more than one Guardian Lizard Sculpture, you've entered the Ghost House Area," he gradually connected all the clues in this amusement park.
Qing Chen contemplated:
In the amusement park, the Ghost House Area is the most dangerous place.
But the issue is, Ren Xiaosu, Qing Zhen, Li Shentan, and the others set up the amusement park here, hoping for someone to pass through it, not for everyone to perish here.
So, since he's entered the Ghost House Area at this moment, the way to leave the Ghost House Area must be hidden in all the information he has seen, heard, and experienced.
For example:
You cannot enter the Roller Coaster Area casually, but if you do, there are two ways to leave: eyes open or eyes closed.
You cannot enter the Maze Area during the day, but you can do so at night.
You cannot enter the Water Park at night, but you can do so during the day.
This information is practically slapped on your face by the amusement park.
