One of her fundamentals is that you can't reverse death: "That's a given. Without it the plot would fall apart, though in Book Seven you'll see just how close you can get to the dead. You can be brought back from being petrified and from injuries that in the real world are mortal, depending on the degree of skill that a particular wizard possesses. You can't go to any wizard and say 'Will you cure my terminally ill relative?' It's a mirror image of the real world in that sense."

In Philosopher's Stone I had a game of chess between Harry and Ron which Ron won by using a particularly violent bishop. My editor made me take it out. He didn't want me to have a bad bishop. Well, he's back, I have a different editor now." [Hermione "sat down to watch their chess match, which culminated in an exciting checkmate of Ron's, involving a couple of recklessly brave pawns and a very violent bishop." (GoF23)]