This book provides a helpful insight into parts of the histories of some of the gods, The Godless and Sliske, as well as their intentions for returning to Gielinor. Readers may use this book as a tool to help them decide which entity to pledge their allegiance to. The book can be stored in a player-owned house bookcase. Upon destruction, players can obtain a new one from their player-owned house bookcase or their emissary.