thank you so much for this gift of a close view of C.S.Lewis!
Read the Screwtape Letters as a teen, read the Great Divorce first when I was about 17, then as I was in the midst of my Christian conversion in my 30s, read Out of the Silent Planet, I believe it was, for a SF class, read parts of Mere Christianity in my twenties. Somewhere along the way, I read the Lion, the Witch and the Wardrobe, but I just couldn't get into the Narnia books. Wrong time in my life, perhaps.
But I really liked the Great Divorce - reread it not long ago. I need to reread the Screwtape letters with my older eye.