Adventure Location - Shadowfell

Short location for an encounter, ambush or distraction. Options for a possible interesting extra.
The Shadowfell is a pale reflection of the world, a place of shifting shadows, twisted crystal trees, crumbling ruins and foul rivers. Meet cursed spirits, doomed cultists, hordes of undead and servants of the Raven Queen.

terrain: Terrain Type:

A patch of quicksand and a sweet spring (nearby is an area of quicksand lined with skeletal arms)
An area of fungi (there is a runed doorway)
A dying mushroom forest (the area has a programmed illusion)
A ruined burial ground. There is a body hanging from a tree with a beast pen fenced with a mix of wood and metal wire (close by is a deep pool of bubbling mud)
A whitewashed remnant of another civilisation (it is a dead magic zone (similar to an antimagic field))
A field of overgrown vegetables (which is associated with a mysterious shadow dragon)
A smooth rock near a ring of mushrooms (nearby is a body hanging from a scaffold)
A slow stream (close to a narrow waterfall into a sludgy lake)
A tangled path (it is disguised by a hallucinatory terrain)
An area of rubble (someone is screaming for help nearby)