They're really fun. Actually, E might be getting to an age where she'd like them - I wonder if the library has any? (I'm reading them as ebooks.) I could see myself having been all over these books if I had discovered them at her age, although they are definitely the sort of books where you'd want, as a parent, to pre-vet first due to the Period Typical Everything. I can get you the titles of the ones that I think I would have been most enamored with as a kid, which are the more action-y ones.