Did a second revision pass-through of the entire book, mostly. That mostly involved formatting stuff, but there was a plot hole or two that needed to be rectified. And, yes, that ate the entire day.
In other news: we have a cartographer for the RPG worldbook! I went with Robert Altbauer of Fantasy Map again: he did the Cin City map in plenty of time and with no fuss, and it’s been popular with my Kickstarter backers. So having him do this one, too sounded sensible.
Long day. More productive than I was giving it credit for, but still very much a long day.