On February 7, 1649 –one week after the execution by decapitation of Charles I, his royal physician, William Harvey (1578-1657), discoverer of the circulation of the blood, writes to his cousin, Edward Francis, a lawyer, once his friend but now firmly in the camp of Cromwell. Harvey muses on how his responsibilities as physician to the king must place him in the royalist camp. But as a doctor he will tend to anybody – Every Body—because all bodies are governed by the same natural laws. He wonders what his place will be in the new political order. And he wonders if his cousin noticed him when he stood by the king in battle – and if they will ever meet again in friendship.