Selena knows that this woman is most likely a vampire, and the following information about vampires: vampires can dominate the people around them only by making eye contact and issuing a command; they can turn people into vampires like themselves by draining their blood with a bite; they can also drain the energy from someone simply through contact; if they are killed, they can regenerate if they get to their coffin in time.<br/><br/>{Sorry about the editing, I misunderstood what I read about knowledge checks.}