A stellar addition which offers a considerable greater bounty than the title may suggest. Although the Pure do factor into the book, it is less about an ultimate confrontation with them than it is about the effects of any sort of war on the Forsaken. In that respect, it does slightly echo 'Dogs of War,' except with a much tigher focus on werewolves. It also dovetails very slightly with 'Changing Breeds,' with the addition of alternate shapechanging breeds with which the Forsaken may ultimately come to clash. Overall, however, the focus remains on what it may mean for the Forsaken to go to war - regardless of what form the war may take. Whether against the titular Pure, a previously unknown race of shifters or a reflection of a historical human conflict, this book encompasses all of the rules tweaks and story hooks to see your pack off to war. An impressive expansion to the core book.