Baobhan Sith

A baobhan sith is a type of female vampire in the folklore of the Scottish Highlands, commonly appearing as beautiful women who seduce their victims before attacking them and draining their blood. These creatures are extremely intelligent, capable of complex human speech, and have a mastery over glamour magic allowing them to manipulate the minds of others, or even disguise themselves as humans in order to blend in. Victims often have nightmares, erratic behavior, and sometimes have no memory of their actions while under the influence. The consequence of this is that the baobhan sith cannot feed upon a victim whom it controls. She must release them before feeding, for a part of her own mind is what exerts her dominance over weaker willed creatures. Those that are aware of her true nature are believed to be somewhat resistant to the effects of her glamour. Baobhan sith also wield power over freshly spilled blood, tapping into a school of forbidden and alien magic that few mortals are capable of learning: blood magic. Baobhan sith are believed to be immortal, so long as they sustain themselves on magically infused blood. The stronger the victim, the more sustenance their blood confers.

Evidence eventually surfaced of an even more disturbing fact about the baobhan sith: these creatures are the broodmothers of the vampiric species. They carry a complex form of the vampiric bacterium, which they are able to spread to unfertilized eggs, developing fetuses and embryos, and even to those with compromised immune systems. In the former examples, where the subject is still develpoing, the bacteria remains latent in their bodies until puberty, where it metastasizes into a sort of evolution. The latter, those whose immune systems are not strong enough to fight off the bacteria, often become twisted, monstrous creatures barely more cognizant than the most simple of beasts.