Best classics for 12yo DD

[iismum]

I want to introduce DD to some of the classics (Austen, Dickens, etc). I've got a tendency to introduce her books she's not really ready for which then don't interest her - e.g. we read David Copperfield a couple of years ago. Any thoughts about what might appeal at that age?

I'm in total awe of Ransome for making an adventure story based on bird watching (Great Northern).

Just point her a Project Gutenberg and let her download the classics she fancies.