Rusalkas are water spirits from Slavic folklore, who appear as a pretty young girls with long hair. In some versions of lore, Rusalkas are the souls of drowned women or unclean spirits who lure men into water, and drown them by entangling their body with their long red hair. Image: Ivan Bilibin
Alchemist and Magician Edward Kelly, in the act of invoking a spirit of the dead at the churchyard of Walton Ledale, from “The book of black magic and of pacts” by A.E. Waite, 1898. The companion in the circle is likely Paul Waring, who helped him with all of his conjurations.
In Bengali folklore, a Shakchunni is the ghost of a married woman. They usually wear Shankha, the coral or shell bangles that they were given as a part of their wedding ceremony. In this picture, from a classic folklore book, the Shakchunni is spreading cow dung mixed with water.
A dybbuk is a malicious spirit from Jewish Mythology that enters people and clings on to their soul. They’re believed to be the lost souls of dead people who were not put to rest properly or committed a grave sin. Like demons, they can be exorcised. Image: Ephraim Moshe Lilien⠀