The new book picks up a short time after the end of the first book. The new book focuses more on Hippolyta and George, though Montrose and Atticus have a thread as well. They're still being used as pawns in the games of the various sorcerors, though as always they're adept at finding the gaps to maneuver in so that they're not completely powerless (the way they are in society as a whole).

The main threads cover Hippolyta, her son Horace, and Letitia, running an errand for the ghost Witham, Atticus and Montrose taking a trip to the plantation where their ancestor, the slave that would become known as Nat Turner, started his journey to freedom (and where they meet an old friend unexpectedly), Ruby and what became of her after the climax of the last book, and Hippolyta's husband George dealing with a cancer diagnosis.

I wonder if a third book is planned -- given how this one wrapped up, it certainly seems like some of the groundwork's been laid for that.