Resistant to magic

I didn't have much left in me in the way of magic. I wouldn't until I got a chance to rest and recuperate from what Nicodemus had done to me. I might have been able to manage a spell that would hold a normal person, but not a hungry vampire. And that was what Susan was. She'd gained strength in more senses than the merely physical, and that never happened without granting a certain amount of magical defense, even if in nothing but the naked will to fight. Snakeboy's serpent-cloud had been one of the nastier spells I'd seen, and it had only slowed Susan down.


Death Masks, Page 220