When some on is sired and they have a demon in them is it always the same type of demon or are there different demons which enter peoples bodies when being sired?? Because kecestose was so old he was turning in to his demon and the master had "lost the burden of human features" and in pilea when angle turns in to his true demon form it is very different again. This may also answer why some vampires appear better than others. And have different powers i.e. Dracula.