Have any adults hereabouts read the books?

I have. I started buying them when my wife became pregnant so we would have them to give to my daughter -- they'll be somewhat out of date by the time she gets to read them, but I remember getting started on the Hardy Boys and Nancy Drew, even though they were somewhat old-fashioned. The Harry Potter books are great kids' books -- tons of imagination, excitement and empowerment, with healthy doses of challenging authority -- giving respect only to those authority figures who earn it. Ignore those nose-in-the-air types who claim that they are no good for kids or somehow worse than the stuff they read growing up. I think anything that inspires a love of reading is great!