Sierra explains that Curtis’s comment inspired her to try a game like one she plays online called What’s the Connection?: “I put up a list of authors and you have to figure out how they’re linked by the titles of their books” (215). Using this rule, she determines that half the holographic statues are authors with Look in their titles, and the other half are authors with Up in their titles. Sierra looks up at the video screens on the underside of the rotunda ceiling—the Wonder Dome—and notices call numbers as the video images cycled through the Dewey Decimal categories. The team begins scanning the images overhead. They already have the 200s number from the Bibliomania game, but they see one in the 600s they need right away. The team thanks Sierra; Kyle tells her, “You saved the day” (217), and she blushes. The team watches until 12:30am and sees numbers in all Dewey categories but one: the 300s.

Charles instructs Andrew to get Sierra’s library card so that he can access Kyle’s meeting room. It is almost two in the morning, and Sierra is awake reading Charlie and the Great Glass Elevator. Andrew approaches and makes small talk, then asks to see the book; sure enough, as Charles told him, Sierra’s library card is stuck in the pages as a bookmark.