I would send this in a PM, but I'm not sure who the best recipient would be, so...
Currently, there are four quizzes in the General|The Unexplained|Vampires category. There are also four vampire quizzes under Humanities|Mythology & Folklore. Perchance, might these be merged into one category? I'd suggest Humanities|Mythology & Folklore|Vampires with a "pointer" to the category under General|The Unexplained, as the quizzes currently in General|The Unexplained|Vampires seem to consider the vampire as a folk motif rather than a potentially real entity.