If you'd like to be a supportive fan, you're invited to this, which is a time to buy Book 9 on Kindle. We're trying to do it all at once because it might affect how the book is ranked on Amazon. If you see it up on Kindle and can't possibly wait that long, I understand. Or just read the preview. It'll probably be pretty long.
The print version should be out shortly after that. I'm not sure exactly when, but I'll post here when I see it up.