Explore a world of mystery and danger, a world a billion years in the future. A world defined by the detritus of bygone eras, when humanity spoke to the stars, reengineered their physical bodies, mastered form and essence, and ultimately disappeared or transcended. These ancients left behind the numenera—bits of their civilizations inscrutable to the people of the Ninth World. Items and places of power and wonder. Explore this world, find and master the numemera, and build a better future!