I'm not sure if I recommend Tom Sawyer or not.
I love the book and am excited to be reading it. But I'm too excited and I laugh at turns of phrases that Madge is ignoring and then she becomes more awake and alert and I have to explain things. But if I read in a boring tone of voice, she doesn't want the book at all and it's a much better read-aloud than Treasure Island was.
Reread it if you have the time. It's worth it.