The Shadowfell

The Shadowfell, also known as the Plane of Shadow, was one of the planes of existence in various cosmological models.

It existed as sort of counterpart to the Feywild, in the sense that it was a reflection, or "echo", of the Prime Material Plane. Unlike the Feywild, it was a bleak, desolate place full of decay and death.

The Raven Queen
Demigod of Death, the Raven Queen has been cast down to the Shadowfell for attempting to ascend to godhood.

Lord Aleister Ceasethorn
A vampire necromancer that has taken over a large region of the Shadowfell.

History Points
Several decades ago, Lord Ceasethorn attempted to use his armies of undead to wage war on Osteria and the Material Plane. He was stopped by the blood hunter Order of Dusk, who managed to close the portal and prevent the invasion.

Black Swamp
A flooded forest of cypress and blueleaf trees, hanging with moss and vines. There are lanterns burning shadowlight oil here, serving as waymarkers down canals that grant slightly safer passage. Within the center of the swamp, easily visible from the air is a ruined church, built to worship some god long ago.

A warren of semi-intelligent undead lizardfolk have built a mound in the western part of the swamp, and are hostile to any living things that approach.

Ceasethorn Citadel
A castle under control of the vampire lord Ceasethorn. Those living who venture here rarely walk out again.

Forest of the Wolves
A forest of Larch trees, guarded by the Ashen Claw Enclave of druids.

River of Starlight
An unusual river filled with lights glittering deep within its waters. These lights are actually bits of the weave that are visible to the untrained eye, magical in nature. The water is fresh and safe to drink.

Shadowhelm
The town of the Shadar-kai, surrounding the Castle of the Raven Queen. This town is a sanctuary for the Raven Queen's servants, and visiting adventurers can find safe lodging here.

Smokestack
The dark version of Sundry in the Shadowfell.

Volcano of Fangs
This volcano erupts a steady stream of smoke over the town of Smokestack. This landmass looks like a maw of serrated teeth, leading into the Nine Hells with the glow of it's lava lighting it up. There is a portal to Avernus in here to those who dare brave its heat.

Wartorn Fields
The location of a battle from long ago, an enormous field with blighted, scorched earth covered in the bones of the dead, and undead.

Whispering Forest
A forest of dark, tall pines. This is one of the few places that more standard game range, making this forest popular with hunters. However, monstrosities also enjoy hunting here as well.