 from Marshfield to Provincetown to Nantucket to the coast, occasionally making lazy circles in the summer sky. Beneath her, busy specks of people and cars and boats passed and yet aloft, amidst the puffy cumulus clouds, Karen cared little for the world that she had left behind. She handled the plane brilliantly, as though she had always flown so competently, in fact, that John invited her to land the aircraft herself. Coached step by step by her instructor,