He let himself into the house and sat down with his back against the door, where the tiles were cool on his legs and he tried to hear, as he had earlier imagined, every single thing that his wife was not doing in their home on this Sunday night. He could hardly keep track of it all, she was so busy being absent. She was not pouring water into a glass or a pitcher. She was not kicking his shoes out of the hall. She was not switching the laundry into the dryer. She was not opening the screen door and going outside barefoot and calling for him to come look at the sunset. She was not putting lotion on her elbows or flattening the newspaper or picking up the ringing telephone, which would go on calling out the absence of Petra in nine-ring sequences dozens of times every day.