Wandering around the library, Spectre find a box with a strangely familiar marking on it
When he opens the box, everyone disappears and is transported to a futuristic city. Everyone but Spectre. They find that the city is populated by a very homogeneous group of people, with one fashion, one building style, repeating patterns seemingly endlessly. Its spooky. There is increasing pressure for our adventurers to conform to the norm here, and more disturbingly an increasing willingness to do exactly that. Eventually our heroes are herded into a reeducation center, and just when it looks like this is the end, they all find themselves back in the library.
Everyone except Spectre.