I read once that the earliest edition(s?) didn’t have Rogue as a separate class, that everyone would be searching for traps and such. And when Rogue was added with the explicit ability to detect traps, it caused a crises because suddenly that implied that no one else had that ability.
That’s kind of important to the story though.
spoiler
V starts off thinking she’s dying and her mind is changing and she doesn’t know how long she’s got, and by the end she’s learned that everyone is dying and everyone is changing all the time and no one knows how long they’ve got. The only real choice is whether you use the time you’ve got to live, or don’t.