"From the Mixed-up Files of Mrs. Basil E. Frankweiler" by E. L. Konigsburg

I loved this book as a kid.  I love this book as an adult.  It's purely delightful, and I'm so glad I revisited it.  I read it aloud to my kids this month -- my 11-yr-old had read it already, but the girls hadn't yet, so it was new to them.  We had such a great time with it -- lots of laughter and excitement.  

Mixed-up Files is about two kids on a crazy adventure of their own making.  Almost-twelve Claudia is tired of being taken for granted.  She'...