Irina had no favorites among her children, except possibly one son who had been ill with rheumatic fever as a child and required long nursing. To him she now confided that she longed for her own childhood sometimes, in order to avoid having to judge herself. She was homesick for a time when nothing had crystallized and mistakes were allowed. Now, in old age, she had no excuse for errors. Every thought had a long meaning; every motive had angles and corners, and could be measured. And yet whatever she saw and thought and attempted was still fluid and vague. The shape of a table against afternoon light still held a mystery, awaited a final explanation. You looked for clarity, she wrote, and the answer you had was paleness, the flat white cast that a snowy sky throws across a room.