We had such fun with this in my class. I ran off copies (it's not in our textbook) a page at a time, so they couldn't see the ending. We read a little, then they journaled their predictions for the next part, then the next day we read some of their journaling aloud and read a little more. They were so shocked by the ending! Then we went back and tried to pick out examples of foreshadowing when we were done, and made a plot diagram. Here's a link with some basic "are you paying attention" questions I had kids answer while we read it, too.
hope it helps![/url]