The Book

Summary
The Book is a book found in the Major's library. The Adventurers retrieved it after they were given permission by the Major to search the library to learn more about the Plague. The book was initially found after  used Detect Magic within the library and found the book giving off a magical glow. It was swifty determined the book was written in Celestial, but was initially unable to be properly read by anyone. The book would be empty asside from the lines: "You are not the correct person to read this". Only when the book was handed to Leander, whom at first seemed uninterested in a magic book the following text appeared in the book, with only Leander beeing able to see it:

"Hello Seer, 

''Use this book to explain your visions when they come to you. When you had a vision, the text itself will come naturally to you while at this moment it does not. The magic of this book protects you from being forced to share anything you do not want. Nobody can read this except you. Tell the mayor that was entrusted with this book these exact words: “The chosen have come; all hail the king!” ''

-Translated from Angelic

The book was taken from the library by Leander, after following the instructions in the book by asking permission to the Major and uttering the phrase written in the book.