From publisher blurb:
Astonishing Races: Fetchling aims to give players of the fetchling immersive world-neutral materials and support for almost any kind of play. Included are new and expanded options for alternate racial traits and subtypes, favored class options for all the base, core, hybrid, and occult classes, and three racial archetypes. The book also has new racial rules for race equipment, feats, traits, magic items, spells, and more!
So if you've ever wanted to play a Shadow Caller, or a Darkness Oracle carrying a Lantern of Dancing Shadows, while wearing an Amulet of Hidden Night, or just delve deeper into your character's shadowy nature, Astonishing Races: Fetchling is the book for you!