What #ttrpg player worth their salt _hasn't_ thought about capturing a supernatural entity as a cheap, permanent light source?
#PhantomsFriday
https://wiki.sunkencastles.com/wiki/The_Captured_Irrlicht
The Wild Hunt takes on many forms in different parts of Europe.
#PhantomsFriday
https://wiki.sunkencastles.com/wiki/The_Night_Folk
Les Fantômes by Louis Boulanger, c.1830
A girl in Dönberg once saw a vision of her father in her home - even though he was serving a prison sentence at the time.
#PhantomsFriday
https://wiki.sunkencastles.com/wiki/The_Man_in_Two_Places
If your mill is haunted by a spirit, there is nothing you can do but tear it down and rebuild it elsewhere.
#PhantomsFriday
https://wiki.sunkencastles.com/wiki/The_Habergei%C3%9F_(Lower_Austria)
Some headless horsemen can turn into other shapes as well...
#PhantomsFriday
https://wiki.sunkencastles.com/wiki/The_Rider_on_the_Pale_Horse