From publisher blurb:
Dark, mysterious, and dripping with ominous potential, the Shadow Plane is a favorite of spellcasters and arcane experimenters. Both coterminous and coexistent with the Material Plane, this strange realm provides creatures for summons, energy for spells, and a risky shortcut for canny travelers.
In this tome you will find some secrets of the Shadow Plane unmasked. The Handbook to the Shadow Plane provides new denizens, hooks, and qualities for the Plane of Shadow, including new rules on traveling between layers of shadow, plane-specific encounters, and treasures you might plunder from this mysterious world.
Inside the Handbook to the Shadow Plane, you will find.
Umbral paths, umbral portals, and the hazards therein.
The maddening curse of the baleful moon.
Memory stealing dusk snatchers and Umbral hags.
Shadow imbuements, umbral elixirs, and umbral compasses.
Spells such as darken the inner light and shadow puzzle sphere.
The shadow shaman spirit and the class-transforming shadow psychopomp hex.
Don't leave home without it!