My family just finished reading Witch of Blackbird Pond, by Elizabeth George Speare, today.  I read this when I was younger and then I read it again a few years ago when my teens were younger. I have forgotten how much I really liked this book.
I think the funnest part about it this time around was that my whole family got involved. I started reading it to my 10 yo, with my 7 and 4 yo listening in for a few minutes here and there, but then gradually I noticed that everytime I sat down my teens joined us, and  even requested that we let them know when we were reading. Then about half way through the book my husband started joining us. It was so much fun! We got so involved with it that they begged me to read until my voice was hoarse.
The next book  we are going to read is Johnny Tremain, by Esther Forbes, which was one of my husband's favorite books as a boy.