Do we need an extension on the book? Conversation is going nowhere right now, and, personally, I'd like to see more than just two of us participating. If you guys need more time, speak up. Mer said when she chose the book that the schedule was not set in stone. We're all busy; I don't think anyone will begrudge some extra time in the interest of keeping up a decent conversation.
Similarly, participate where you can. You don't have to reply to the most recent post. If you still haven't made it past chapter five, it's okay to reply to the first post again. There are no rules about where and when and how many times one can reply. This is supposed to be a discussion. If other things occur to you, or you want to weigh in on something that you haven't addressed yet, go for it.
Not that I'm trying to force anyone to comment. But this isn't going to work if no one says anything.
ETA: I should apologise. I have no idea how this post sounds; for some reason, I can't get any sense of its tone. So if I'm coming across as confrontational or impatient or anything else unpleasant, I sincerely apologise. I don't mean it that way at all.