Source: Vampire the Masquerade
Location: Generally underground
Threat Assessment: 5. One of the 13 clans of vampires in the "World of Darkness." They are ugly by human standards and have mastered the ability to hide themselves mystically and possess even greater strength than most vampires. Because of their shared problem they are a tighter clan than others and they seem to have some secret agendas involving the underground..
Limitation: Being inhuman looking, they are generally first to go when the humans get wind of vampires. Other vampires distrust vampires so good at hiding. They are all around social pariahs.