Joan Aiken

I know some of you read Joan Aiken. If I was to read something of hers that was not a Wolves book, not about a pet raven, and not a Jane Austen homage/continuation, what would I start with? (To be clear, I have liked the Wolves books and had no particular objection to Arabella or her raven. But then I'm left with this sort of largeish mass of things, and I don't know how highly variable she gets.)