I spent all day walking around the park, looking for something that might tell me something, but the problem was that I didn't know what I was looking for. I went up to people and asked if they knew anything that I should know, because sometimes Dad would design Reconnaissance Expeditions so I would have to talk to people. But everyone I went up to was just like, What the? I looked for clues around the reservoir. I read every poster on every lamppost and tree. I inspected the descriptions of the animals at the zoo. I even made kite-flyers reel in their kites so I could examine them, although I knew it was improbable. But that's how tricky Dad could be. There was nothing, which would have been unfortunate, unless nothing was a clue. Was nothing a clue?
Jonathan Safran Foer, Extremely Loud and Incredibly Close