On January 23, 2002, Wall Street Journal reporter Daniel Pearl is to fly from Karachi to Dubai with his pregnant wife, Mariane, also a reporter. On the day before, with great care, he has arranged an interview in a café with an Islamic fundamentalist cleric. When Danny doesn't return, Mariane initiates a search. Pakistani police, American embassy personnel, and the FBI examine witnesses, phone records, e-mails, and hard drives. Who has him? Where is he? There's also the why: because of U.S. abuse of prisoners at Guantanamo, because of a history of Journal cooperation with the CIA, because Pearl is a Jew? Through it all, Mariane is clearheaded, direct, and determined.—