I figured out the Mystery of the Missing Pages in my kindle version of Speaks the Nightbird!
I finished the book yesterday, and then grabbed my kindle to just skim through and see if I could find differences. Got to page 483 (the end of page count) without noticing anything left out but it still was nowhere near the end of the story and then I noticed that it said 50% completed.
Aha!!!!
I kept flipping through, and the page count stayed at 483 out of 483, but my percentage changed. So that's why, when I jumped to the end previously to check if the last few lines were the same, it still said 483 out of 483. The page numbers just stop at 483.
Just a glitch, I guess!! But I am happy my kindle version of the book is complete.
Really great book, too!