One day a year the Gypsy tribes of the Balkans pay honor to a vampirelike being they call bibi (“aunt”). It is described as a tall, thin, and barefoot woman wearing a red dress and accompanied by two small girls. Some sources also include two white lambs to its entourage. An unforgiving being propelled by vengeance, the bibi visits homes at random. If invited inside, it will bless the home with good fortune; however, if it is turned away, the inhabitants of the house will fall ill with cholera. If there are children in the home, it will strangle them to death, but their bodies will show no signs of attack.

Source: Crowe, History of the Gypsies of Eastern Europe and Russia, 212, 214; Guile, Complete Vampire Companion, 8; Pearson, National Minorities in Eastern Europe, 204