One day before Christmas Eve, my father lifted his wineglass and told the entire table that the best gift would be if I disappeared from this family. The room did not gasp or pull away from the table while eighteen relatives sat around the long mahogany surface in the Philadelphia house I had been quietly keeping alive for nearly a decade.

The only sound for one strange second was the soft settling of silverware against china, which felt like the whole room had been waiting for someone important to finally say the quiet part out loud. Then my brother Spencer laughed with the sound of a man who thought a verdict had just been delivered correctly after a fair trial.

I looked at my father, Dr. Winston Thorne, who was the chief of surgery at Philadelphia Presbyterian and a patron saint of polished charm. He did not look angry or out of control, but instead he looked satisfied as if he had just offered a toast to wisdom and the world had honored it by staying still.