It was very good! I read it last month and keep meaning to write up a full review, but haven't gotten around to it yet. I do have one complaint – it's essentially two mysteries in one book (one in 1830, and one in 1838, I believe are the years), which means there are a lot of plot details, minor characters, red herrings, etc to keep track of. The mysteries themselves are very well-done, but they take up almost all of the page space, and therefore essentially crowd out any of the more plotless little character moments that are my favorite parts. Though there are a few nice things that happen nonetheless, including (spoiler white-text) Rose names her new baby after Hannibal, which made me very happy.