Firstly, the librarian in the counter is investigated, and then it can be found that only the guards and the principal have the key to enter the special literature room.

Then the NPC on the right side of the counter used detective skills and found that he understood the value of those documents and owed a debt. After leaving the library, I used detective skills on the doorman and found that he had the key to the special literature room, but he didn't understand the true value of these books.

Finally, I went to the college on the east (right) side of the library, went up to the second floor and entered the principal's office in the middle. I used detective skills on the principal, and found that although the principal also has a key, it has been locked in the office and has not been used recently. After investigating everyone, enter the unique reasoning time of scholars.

The game plot background of travelers and scholars from all directions

Scholar Cyrus is a professor at the Royal College in the town. After teaching today's class, a guard came to inform him that he had obtained the right to browse special documents today. So we went downstairs to go to the library.

On the way out of the palace, student Princesse Marie suddenly came over and asked a question in class. After the answer, go out of the palace and go all the way south (down). You can see the archive point at the intersection. Go west (left) from the filing point and you will arrive at the library.

After registering in the library, we entered the special literature room, but we didn't find the books we needed. Just when we were confused, we received a summons from the principal, so we asked the librarian to continue to help us find it, and we came to the principal's office.

The headmaster said that special documents are the private property of the college and cannot be published as papers. Scholars violated this regulation. Under the pressure of the school, I can only accept criticism.

After leaving the college, go down the stairs and go west (walk) back to the library. The librarian didn't find the file, and there was no other person's name on the borrowing record. In other words, it was stolen, so the scholar prepared to solve the mystery himself.