Quentin Jacobsen has spent a lifetime loving the magnificently adventurous Margo Roth Spiegelman from afar. So when she cracks open a window and climbs back into his life - dressed like a ninja and summoning him for an ingenious campaign of revenge - he follows.

After their all-nighter ends and a new day breaks, Q arrives at school to discover that Margo, always an enigma, has now become a mystery. But Q soon learns that there are clues - and they're for him. Urged down a disconnected path, the closer he gets, the less Q sees of the girl he thought he knew.

Printz medalist John Green returns with the brilliant wit and searing emotional honesty that have inspired a new generation of listeners.

John Green (whose full name anagrams to rejig, ole henchman) is the Printz Award-winning author of Looking for Alaska. John has also written for National Public Radio¹s All Things Considered and for The New York Times. He lives in New York City with his wife. Before he got married, he was dumped fifty-three times. But never by a Katherine. You can visit John on the Web at www.sparksflyup.com.