Yang Ye sized up the surroundings. It was empty. He saw nothing.

Actually, some small worlds were hidden here, and it was where those books resided.

As for the black scroll in front of him, it was the key to the library.

However, he didn’t have any authority. When others came to read or borrow books, he just had to use the key to open the entrance to the library.

To make it sound nicer, it was the job of a librarian; to be blunt, it was no different from an odd ...