We just began C. S. Lewis's Space Trilogy, which I have never read, so this is fun reading something entirely new! If you read something that's just beyond their range when they're young, it helps them develop great vocabulary skills, if you explain the new words as you go along.
IMHO, of the Space trilogy, the first 2 are sort of nice, but the 3rd is very damn good.
I haven't read it in awhile, but it made a big impression on me. It's sitting in my bookcase, maybe I'll get it out and give it a reread and see if I still think so well of it after all these years.
JenB, have you read these books?
Just finished chapter 2 of Wrinkle. Matthew is really loving it, it's a tad above Joshua's head but like you say, it develops the vocabulary...causing them to use the word "gasped" in a sentence! LOL He's got the idea of the story and gets credit for it for the Pizza Hut Book Club if he sits quietly and listens.