The Da Vinci Code author Dan Brown is terrified of the media circus stirred up by his controversial book - insisting he is amazed how "real celebrities" cope with the attention. Brown, 41, admits he is just a geek and prefers living as a recluse than facing the public. He says, "I'm just a guy who wrote a book and it still can turn into a circus at times when I go out in public. "I have no idea how real celebrities handle their fame."