Paper Towns by John Green

Quentin Jacobsen is an honor student, a band geek (although he doesn’t actually play an instrument), and an all-around good guy. In fact, he is his parents’ “greatest accomplishment,” and that’s saying something, as they are both highly skilled psychologists. But there is something that Q’s parents don’t know—Q is practically obsessed with his neighbor and friend-from-afar, the awesomely awesome Margo Roth Spiegelman. Margo makes a dramatic reappearance into Q’s life for one exciting night, and then mysteriously disappears. It’s up to Q and his closest friends to decipher the clues and track her down before it’s too late. Along the way, Q learns that Margo is not the girl he thought she was and he learns a few things about himself, as well.

Witty, authentic dialog. Appropriate for high school.