Amazing Adventures Among the Stars! Discover worlds where magic and technology exist together, where powerful spacefaring vessels called aetherships ply the skies and the stars. The Aethera Campaign Setting features a binary star system with multiple inhabited worlds that have only just survived a century-long war, and even now live in the shadow of an impending intergalactic invasion! Inside this massive, Pathfinder-compatible tome you`ll find four new alien races (Erahthi, Infused, Okanta, and Phalanx), six new alien worlds to explore, hybrid magical technology, and new rules for exciting, fast-paced vehicle combat, plus new base classes, feats, archetypes, and spells.