I am reading Anne Rice’s Called Out of Darkness, and at one point she mentions her vampire novels. I was totally floored when she says they should not have been commercial successes because each was so different from the other. Different? Bloody hell, she wrote the same damned book five times, how could she say they are different? But I understand. As a writer there is no reason for you to think while you are writing, ah, well, this is exactly like the last book I wrote, only with different people. No, you write it and think, because it has…