The Grand Stair stretches behind the scenes of the multiverse,
The Doors upon its unfathomably vast span leading the way to gossamer worlds of limitless variety and infinite possibility. It was always thought those realities were separate and distinct... but what if they aren't, and there was a breed of reality intent on expanding itself throughout the cosmos?
The Otherlands are the realms of the Other, an expansive, empowered, omnisentient reality with the ability to propagate itself throughout the multiverse via the Grand Stair, like an ever-sprawling kudzu, or a virus... or a cancer. Untold numbers of gossamer worlds have felt its influence and fallen under its sway, as suddenly the eerie similarities observed in multitudinous gossamer worlds no longer seem to be coincidence at all. There's a reason so many legends of ancient faerie kingdoms and alien underworlds sound alike... for somewhere out there is a common ancestor-reality, more powerful and primordial than them all.
Gossamer Worlds: The Otherlands presents one of the infinite possibilities within Lords of Gossamer and Shadow by Jason Durall, powered by Erick Wujcik's Diceless Roleplaying.
-Publisher blurb