"I know the one." And this gives Susan somewhat of a deadline. She can bring herself to read the book if she's to pass it on to someone else. "I'm nearly finished with it-" A lie, but a harmless one; she's a fast reader. She can't go finish it now though; she has plans rapidly approaching, and if all goes well, she'll be too busy to pick it up tonight. "I can pass it along to you after the talent show?"