26 hours after starting the book, I just finished it. I did not read without stopping: I slept, made several meals, and took Sara for a walk. I played cards with Miles, read the newspaper, and changed at least one diaper that I can remember. Andrea even got to read a bit, too.
As Ron said in The Half-Blood Prince: "None of us could've guessed ..."
Here are my two favorite bits:
"There it was again: choose what to believe. He wanted the truth."
"'Of course it is happening inside your head [...], but why on earth should that mean it is not real?'"
I don't think those two lines give anything away. :-)