Dagon'hai history

The Dagon'hai history is a book found in the Varrock library. It is in the west bookcase of the 2 bookcases in the northeast corner of the library. It tells of the fall of the Dagon'hai. From the quest What Lies Below.

After the Varrock Museum minigame a copy is displayed in case 3 on the third floor. Return text: Do you want to send this book back to the Varrock Palace Library?