Unlocking method
1. First, the player upgrades to level 6, which will unlock the library.
2. Go to the library, and then you can see the unknown book entrance behind the librarian;
3. After entering, everyone can successfully unlock the unknown book.
The book of the unknown
1. There are many checkpoints in the map of Unknown Book, and each checkpoint has many places to investigate;
2. Players need to complete it on time according to customs clearance requirements and meet all requirements before Samsung can clear customs;
It is still very difficult for this story to pass the customs clearance of Samsung. If you can't pass it once, you can try it several times.