When Yann Martel won the Booker Prize, the glare of public attention was blinding. So what comes next in the career? “I could be a one-hit wonder and that’s it. I’ll be known as, ‘Remember that guy who wrote Life of Pi, about that boy in the lifeboat with his tiger?’ You know, William Golding, his entire career suffered from the enormous success of Lord of the Flies and everything else took a long, long time.”