A whirlwind romance from the New York Times bestselling authors of Nick & Norah’s Infinite Playlist!   “I’ve left some clues for you. If you want them, turn the page. If you don’t, put the book back on the shelf, please.”  16-year-old Lily has left a red notebook full of challenges on her favorite bookstore shelf, waiting for just the right guy to come along and accept its dares. Dash, in a bad mood during the holidays, happens to be the first guy to pick up the notebook and