Chapter 23 is now uploaded for Saturday. Book Four is now uploaded and waiting for moderation on Bookapy. It'll be the same $5.99 as Book Three. I do have it uploaded in EPUB, MOBI, and PDF format, and from my checking, all three are good files. You'll probably have to adjust your EBook reader, I went with Black for the text color through the whole thing.
Sigil told me it was a clean EPUB, although when I ran Flight Crew, it came up with this huge list of things that made absolutely no sense. The HTML was actually pretty clean, all things considered. I did MOBI instead of AZW3 for older Kindle readers. The PDF file was a little over 1,100 pages long, and the HTML TOC didn't seem to work on it, but that's because Calibre converted the HTML TOC from the EPUB, so it probably WON'T work. ETA: And Laz said my file was scrooged, so he fixed it. Dammit, I thought I had the EPUB correct.
As before, I know I'll end up getting more errors found, so this fall, I'll go through it, edit it, and reupload corrections. Oh, and one last thing. Before you get to the end of Chapter 30 - close your doors and windows, so your screaming at me for the cliffhanger won't disturb TOO many people.