After Mary weds Prince Philip of Spain, she begins to work in earnest to establish Catholicism as the only faith in England-and to execute Protestants. When Brandon sees several people burned at the stake in London for their faith, the experience changes him: Even though he has been only a nominal member of the Church of England, he finds himself compelled to stop those responsible for these outrages-and to do so before his uncle Quentin, a pastor, is himself burned at the stake. Unfortunately, the only way to save Quentin and so many others is to make Princess Elizabeth (who is herself in danger of dying at Mary's hand) queen. And that, of course, would be treason. Punishable by death.