Oh, I don't think you've messed her up! Nothing wrong with going higher with guidance, as long as she hasn't developed some type of automatic resistance to anything that looks like a kids' book. Even if she is having a phase like that, though, I'd say it's important not to "give up," you know? Just as we wouldn't give up on a kid who was resisting all fiction, or resisting everything but Harry Potter over and over (BTDT), or even resisting reading at all. Strew the path, strew the path, with delicious-looking books.