The Wild Hunt (https://wildhunt.org/tag/forests)
Aside from mysterious nocturnal creatures and inner earth cults, there are also elves and dwarfs in the forest. There are dark holes in trees that are obviously the entrances to elf homes. There are ancient tree stumps clearly used by the elf-king to address his gathered followers during moonlight ceremonies.
“The Gates again open, the skies darken, the rain soaks through stone and skin.” I.
The rain poured through my skin. As I stood upon the pavement outside the tavern, soaked in the chill night, smoking a cigarette, the Gates opened around me. Straddling the ford, wet up to the laces of my boots, water rushing past my feet along the river-bed: someone is laughing at me. Eddies swirl in the torrent unable to clear the leaf-clogged drains, and someone is laughing at me.