Tristan, I just read your blog post about your book club! We used to have one, but it morphed into science but now everyone is asking for book club back!
In looking over your list of books you’ve done (didn’t realize you were the blog post mom until I read the list of books), I do question whether “Benedict Society” would be a good fit overall with your group. It is similar in some ways to “twenty one balloons”, but as an earlier poster said, no parents, and frankly just not the sweet gentle read that most of your books are.
(Not that all are reading has to be Pollyanna stories, but you have a big mix of ages, so that’s mainly where I’m coming from.)
You might want to pick up a copy and just read a few chapters yourself and see what you think. It is a thought-provoking story, but some families will have issues with it, so I don’t recommend it wholeheartedly. My daughter does not like that kind of thing, so has not taken an interest in it.