This is a work that details how the magical community functions in the United States. As a much younger nation than the UK, magical law-enforcement is still in it's Wild West stages here, and as such, only a handful of dedicated Sentinels stand watch over the magical doings of The Folk, the magical community of the US. Gabriel Crow is a Sentinel in North Carolina, and he is about to face his most dangerous case. A group of Apocalypse wizards is trying to summon an ancient evil that will swallow the world whole, unless Gabriel can stop them.