Well, someone out there must be close to God because your prayers were answered. I found the missing library book at the bottom of the Little People box earlier today. I can't think why I didn't look there before as I thought I had emptied every single bin in the living room in my earlier searches.
I'm so thankful I'll get all but $7 back!
(I thought I was going to have to end this post with another missing library book, but I found it tonight between our bed and the co-sleeper.)