This is one of the best books a storyteller can have if they are running a crossover game. While very helpful for adjudicating effects on NPCs, it is invaluable if you ever intend to run a mixed party game with vampires, mages, changelings or other supernatural PCs playing together. While written as a companion to the Contagion Chronicle, you absolutely can and should use this book by itself. Fantastic book, exactly what I have been looking for. Cannot recommend enough.

A wonderful book that explores the various options a storyteller has when creating their own World of Darkness through the Mage paradigm. While the base gamebooks offer their own view of the World of Darkness, there is a vast array of options and questions left for the storyteller to answer. What does it mean if the world had a high mage population? How organized are the various Traditions / Crafts / Conventions? In what ways are the shadows in your World of Darkness deeper than our world? Is it darker than our world? Depending on where you live, mundane reality may be dark enough for your chronicle as is. This book offers many options to help new and experienced storytellers alike flesh out their worlds, with plot hooks and fleshed out options to bring that extra flavor to any campaign. While absolutely made for Mage, I believe this book is worthwhile to any storyteller, as the base questions are mostly the same for all game lines. Highly recommend.