We read Maniac Magee in one of my 4th grade classes. It's a little too hard for them, but I loved it and burned through it in one afternoon. It's about an incredible little boy who is blind to the racial tensions controlling many events in his life. I highly recommend it.
I picked this one up at a book swap because the previous owner raved about it. It's a well-written story that takes hero-villain cliches over the top, but it just wasn't quite to my liking.
I got to read this one afternoon while my students were taking a test and really enjoyed it. It's only the second Holmes story I've read, and I think I'll have to go look for the whole set now.