In Salman Rushdie 's new novel 'The Ground Beneath Her Feet', singer Vina Aspara is caught up in an earthquake on Valentine's Day 1989, and never seen again. On that day Rushdie's own life was in upheaval as Ayatollah Khomeini pronounced the fatwa upon him. Rushdie talks to Francine Stock about the novel. There is also an interview with U2 singer Bono, who has based a song around lyrics from the book, and performs it with guitarist the Edge.