"Vampires where I'm from are very much living, breathing, warm-blooded beings. Unlike other types I've heard of outside of my own world. We're perfectly capable of reproducing and having families, and plenty of vampires do. The whole part about different levels. . . that comes from how much human blood has been bred into the vampire. So the top level, purebloods, they have not a single drop, while the common level and ex-humans have a fair lot of it."