I tend to agree with Val on The Bell Jar--of course it seems likely that if you tell not to read it she might be even more inclined to read it. The suicidal stuff--esp. written by someone who ultimately followed through with it--would concern me more than sex and even violence.
I loved reading Les Miserables and suggested it to dd9 for our next bedtime read-aloud but she didn't go for it. Sorry I don't have any other suggestions--this is already a challenge and I can't even imagine how much more difficult it will be in a few years!
