Publisher's blurb:
The World Serpent Inn sits at the crossroad of the multiverse itself. It is a planar watering hole, a gathering place for travelers from all across the planes, and a flashpoint for adventure, danger, and excitement. It is a sprawling place with multiple "levels" hiding within its own dimensional space, a transitive plane tucked away from the rest of the multiverse but accessible from nearly anywhere - through the right door.
The World Serpent Inn was originally featured in OP1: Tales of the Outer Planes and was updated in Dragon (Issue 351 - Jan 2007). It is detailed and expanded upon for the latest edition of D&D with this release, and includes a host of interesting patrons, strange sites, and mysteries enough to keep the most active of adventuring parties busy for years!