Embassy of the Inconstant Moon

The moon shines down on the Ninth World, and its glow reveals things which remain hidden during the day. When the green stripe across the face of it points towards the ground, a whorled crystal structure appears, jutting from the rolling hills of Scorpion's Reach. Explorers beware, the moon is a strange thing...

In Numenera, player characters live on Earth a billion years from the present, built on the remnants of eight prior civilizations, each of which rose to the heights of technological mastery, then collapsed after millennia of ascendence. Many of those civilizations had nothing to do with humans. But now, in the “Ninth World,” humans are back, discovering the wonders of the worlds that came before—not for their own sake, but as a means to improve the present and build a future.