It’s not their fault: there’s a villain on the loose! And that villain has a dastardly plot! And it could only happen at the library! When the teens get scattered into the library books, first they have to figure out what happened, then they have to find each other, then they have to find the real Jump City.
It’s all in a day’s work for our heroes. Not their normal day’s work, which involves a lot of punching and posing. This is more like a reader’s day’s work! You know: the fun kind!