Guys, if you”re wondering what are these „dementors” dancing performance - these are „topielice” (drowned), demona from Slavic beliefs. They”re souls of young women who drowned themselves because of misery or were drowned by someone else. They exists in rivers or lakes and are dangerous for the living, especially young men. When they see a man, they catch him and dance around him in a circle, until he dies from exhaustion. Slavic mithology and culture is beautiful and interesting (some of beliefs were presented in the Witcher! Like striga)
