From publisher blurb: A banished power fights to return to the Ninth World. A fallen moon of The Sun Below begins to stir. The Knocker at the Door begins to awake. A Numenera adventure for all tiers. 49 page adventure for all tiers, 16 page bestiary, new numenera, dozens of GM Intrusions, and player handouts. Who is the Sleeping Lady? What’s in the numenera mines? What is knock, knock, knocking at the door? Hang onto your minds and bodies, because secrets of Orb Mountain are about to be revealed!