We discover more about about the world of die and sinister plans unfolding around our protagonists. A lot of poignant moments and big emotions and luscious art. Solid stuff, and it's looks like we're all in place for the final arc.
The back matter is a series of interviews with game designers about the recent changes in TTRPGs which is bit tangential but an interesting read (I actually finished the rest of the book about a week ago).