(900 words) My wife, Coral, had become rather ‘tubby,’ to put it kindly, fat to put it less-so, since the birth of our first child, Crispin, so I was pleased that after the Christmas festivities were over she began to take herself in hand. She’d leave little Crispin asleep with me or the babysitter to take an occasional walk, spurred on by the GetFit watch her mother had given her for Christmas. Well, I was tied up with a novel, the fourth in my series of Sargent Fosdick mysteries, and mighty pleased that Joe Public was finally shelling out his – or her – hard-earned to the relief of my long-suffering literary agent, Rupert. Anyway, for whatever reason I was finding it pretty hard going, trying to think of original twists and turns to the basically mundane ‘whodunnit’ plot, so was only vaguely aware of Coral’s increasing slavishness to the watch, just that the walks became daily, then daily jogs.