Legendary Games: Faerie Mysteries (Pathfinder 2E)
Faerie Mysteries explores the influence of fey creatures and the faerie realms on a Pathfinder Second Edition campaign world. It is not so much about monsters and magic as it is about how the influence of the fey can change the feel and flow of a campaign, and it gives you a game-mechanical system for describing and representing that in-breaking of raw, untamed, primal magic that make the fey what they are.
Fey do not simply walk about within the world; they carry their version of the world along with them and make our world more like theirs with every step. The rumors and ripples and ruptures in our reality really lay the groundwork for enriching any campaign where civilization is not the only power in the world, and where the force and spirit of nature can push right back.
This book and its contents are compatible with Pathfinder Second Edition.