Mr. Penumbra's 24-Hour Bookstore - Robin Sloan Absolutely exceptional! If we as humans didn't have to sleep, I would have devoured this in one sitting yesterday. Such a beautiful story that leaves me wanting to hear more of their adventures, but if there aren't anymore, this story is one that I would love to re-read over and over again. If you really are a book-lover, you will LOVE this book.