Boginki are minor deities in Slavic folklore that personify nature. They appear in many different forms and dwell in swamps, lakes, rivers, forests and mountains. They’re sometimes hostile and attack women during childbirth, switch babies with changelings and destroy fishing nets. Depending on the region, Boginki were thought to previously be women who committed suicide or died in childbirth. The babies taken by them and replaced with changelings could also be turned into Boginki. Images: Maria Apoleika, 1874
water spirit
The Ngondo is yearly festival in Douala, Cameroon. A ceremony is performed by the jengu cult, in which a devotee enters the water to visit the kingdom of the miengu. Miengu (plural for jengu) are mermaid-like spirits with long hair and beautiful gap-teeth, who bestow good luck to devotees, cure diseases and allow them to communicate with the world of spirits. Image: Photokadaffi on Wikimedia Commons