I woke to see Sadie’s bare olive-brown back walking out of the door. It shone in the moonlight. I thought she was on her way to the bathroom. When I woke again, sometime later, the bed was still empty. I then remembered that her stepbrother, Jack, had come for the weekend for a conference and, of course, he stayed with us. His flight had been delayed so it was late when he arrived. Time for him to take a shower, a quick d...