I ordered the book and I'm absolutely loving the ride so far. But in working on the puzzle for note 32, the cipher seems to stop working on the third line (BCGIX...). Would Backwards Tabletop mind checking and either telling me I'm crazy or let me know what it should be instead?
I just double checked it, and it's correct! But I can see why you're confused, which means you are absolutely on the right track.
Minor hints below.
You have probably stumbled upon a confusing series of vowels? Keep going. My guess is that when you are 8 or so letters into the line you will realize why it looks strange.