Perhaps the mirror would have given Nissa away as something not quite human, but the vampires of her world possessed reflections. She found it odd that vampires like Angel and those of his world did not. How did they blend in with humans? Though, she supposed they didn't have to, being that their affinity to the sun prevented them from mingling with their meals during the day. The sun didn't harm Nissa. It didn't make her glisten or stand out in anyway, either. She was the perfect imitation of a normal seventeen-year-old girl in all the right ways. If one was a witch or a god or a seer, maybe then they'd see she wasn't right, but to the naked eye...Nissa was just a girl. And human or vampire, she was a harmless girl. She didn't eat people.
Well, that wasn't true. She didn't hunt. In her world, there was a circle of humans who allowed themselves to be fed off of. Doners, if you will. Nissa never drank too much or drank to kill and if there weren't willing humans, she'd go elsewhere for blood. Here, it was butchers shops. Pig's blood wasn't her favorite, but it would do. She could fight the bloodlust for humans. She had been doing so for a long time. She wasn't a monster, wasn't a killer. Just the victim of circumstance.
Her eyes went to the mirror again and she was alarmed to see that the reflection of a blonde girl leaning against it, didn't match the face it was supposed to be reflecting. Curious, Nissa left her seat and made her way over to the girl.
"And of what line are you?" She asked, assuming that the girl was a witch and not a reaper. Witches, after all, were capable of casting such powerful illusions.