Tristan rose, sighed, and tossed the book down into his opened suitcase. Did he really have to deal with this now? But yes, he did. If it had been a few pennies, he would have let it go easily. He was tired and frustrated enough. But he wasn't going to be robbed of two full pounds. "Come now," he said, in the friendliest tone he could manage given the circumstances. "I counted the money, and there's two pound missing. You don't want the police involved, do you?" He had spent enough time in big cities to know that was often an efficient way to make a homeless person give you your stuff back.