I thoroughly enjoyed this book, but I know it is one that has polarized readers. People either love it or struggle through it. Being a huge fantasy fan, and also a die-hard fan of the Regency era in England, I loved this book (but even I admit that it was slow-going at times). I thought it was creative and fun and quirky. But many people I know disliked it. Not only for its bulk, but for the many sidenotes and tangents, I think this book might be difficult for a book group, but perfect for a read on your own, especially if you like the period. If you want a book that focuses on magic during the Napoleonic era, you might first try Naomi Novik's trilogy- if this is well-received by your club, then try JS&MN.