On February 14, 1989, Valentine's Day, Salman Rushdie received a telephone call from a BBC journalist who told the author that he had been "sentenced to death" by the Ayatollah Khomeini. It was the first time Rushdie heard the word fatwa. His crime? To have written a novel called The Satanic Verses, which was accused of being "against Islam, the Prophet, and the Quran."

So begins the extraordinary story of how a writer was forced underground, moving from house to house, with the constant presence of an armed police protection team. Rushdie was asked to choose an alias that the police could call him by. He thought of writers he loved and various combinations of their names. Then it came to him: Conrad and Chekhov--Joseph Anton.

How do a writer and his family live with the threat of murder for more than nine years? How does he go on working? How does he fall in and out of love? How does despair shape his thoughts and actions, and how does he...