Good and evil, right and wrong was something that someone made up to keep people meek. Fear of God, fear of the law keeping them happy little sheep in mundane lives.
Gale Francombe was dead. She had taken her place, she liked being Gale. She liked the money and the power. Ben meant nothing to her, never had. She wasn't sure he cared about anyone other than himself, they were similar that way.
They were just entwined together over a terrible deed. One of them would have to die. He'd said often enough. Sooner or later one would have to kill the other. She had already decided that it wouldn't be her that died. She could kill Ben, hell she was sure she could do it herself and get away with it. But what she had planned was more fun, more thrilling.