On February 14, 1989, Salman Rushdie received a call from a journalist informing him that he had been "sentenced to death" by the Ayatollah Khomeini. It was the first time Rushdie heard the word fatwa. His crime? Writing a novel, 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 for more than nine years, moving from house to house, with...