Ovengua

The Ovengua are from Guinea. They are created when an evil sorcerer or a corrupt person dies. Their bones escape their grave one by one and gather back up in a secret location. They move through the forest and attack travelers at night. They catch and eat people and may drink blood. They live in caverns during the day. They can be attacked by a lot of spears and must be burned completely to ash or they will come back. They may take a ghostly or a physical form, which is for the sake of feeding. The creatures can be appeased by leaving out bowls of animal blood outside the house or village. They can exist on one bowl every week and be satisfied. They become angry if any step of the appeasement is mishandled and will kill people and animals but may do so by spreading disease. Blood must be cleaned immediately if dropped, and clothes must be burned, or the Ovengua becomes angry.

Citations:

Bane, Theresa. Encyclopedia of Vampire Mythology. United States, McFarland, Incorporated, Publishers, 2017.

Du Chaillu, Paul Belloni. Explorations & Adventures in Equatorial Africa: With Accounts of the Manners and Customs of the People, and of the Chace of the Gorilla, Crocodile, Leopard, Elephant, Hippopotamus, and Other Animals. United Kingdom, J. Murray, 1861.

Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006.