The book does a really good job at going indepth into everything that it adds, from 2 new species, to a new class and new subclasses that are all fairly fleshed out and unique from base game. There is a new way to deepen your characters backstory and diversify each character which is really fleshed out, with 4 different catgeories that provide different benefits to help flesh out your character. A majority of the book is dedicated to fleshing out the base world of the book, which helps to set the tone of the world and start to provide an image of the sort of world a GM will be running in a campaign. The last few chapters are dedicated to a mock adventure which is very much appreciated as it helps to look at to start making ones own campaign based in a similar world or to run it as a One shot. At the end there's a couple appendix's that provide important NPCs, new dungeons, called lairs and new monsters. Overall, the book is put together real well, with a unique style to itself. It provides fleshed out components that it brings into the game, and information that greatly assists GM's in running their own campaign or a One Shot based off of the setting of the book.