
Perhaps my favorite aspect of this series is that, though we'd expect it to be plot-driven, the characterization is just as strong. The foursome keep learning more about themselves and each other, exploring strengths, weaknesses, and figuring out how to get along now that they spend at least as much time together as siblings do. For example, someone notices that one of Sticky's nervous habits is to polish his glasses. When the remark gets back to him, Sticky spends the rest of the book checking himself whenever he reaches for the polishing cloth. It creates sympathy for him, and respect for his willingness to overcome a habit. The book also strikes a good balance between explaining as little as possible yet providing enough backstory that readers can start here without having read the first two. There are many funny moments, and though all the kids are likable and distinct, Constance is always a howl.
Yet, I didn't love the book as much as I wanted to. Part of that, I think, is simply that the children's spectacular gifts are no longer as startling as they were in book one. That's just one of the conditions of being a sequel. But the real reason, I believe, is that once the plot got going, there was a lot of running around and not as much puzzling. It's the brain teasers and the fun of matching wits with the characters that make these books unique, and that was lacking a bit in this volume.
A heartwarming ending to this book prepares readers for the series to end at this point. If there are more Mysterious Benedict Society books, though, I'll gladly pick them up.