Please recommend a "REAL" book!?

I really don't want a teen book like impulse or crank or gossip girl. I'm kind of passed that stage. My Grandma and I have an awesome tradition of sharing books. We like Tuesday's with Morrie, Walk Two Moons, The Wanderer, The Lion the Witch and the Wardrobe, Tuck Everlasting, The Notebook, A series of unfortunate events, Of Mice and Men.... They've changed as I've grown up over the years. But I'm thinking of reading Heaven is For Real and For One More Day. Any other recommendations? Thanks :)