DD (14) is a big reader and feels she has outgrown young adult books. (Though I'm sure she'll revisit them later on.) I'm familiar enough with novels to able to recommend her books that are 'grown up' and challenging but where the content is still age appropriate, but she also loves graphic novels and there I'm lost, beyond looking for adaptations of books I know, as I don't read them. Can anyone recommend some that are not inappropriate but also not specifically written for that age group, please?