On page 38 of Atonement, McEwan drops a master class in fiction-writing:

“As [Briony] stood in the nursery waiting for her cousins’ return she sensed she could write a scene like the one by the fountain and she could include a hidden observer like herself. She could imagine herself hurrying down now to her bedroom, to a clean block of lined paper and her marbled, Bakelite fountain pen. She could see the simple sentences, the accumulating telepathic symbols, unfurling at nib’s end. She could write the scene three times over, from three points of view; her excitement was in the prospect of freedom, of being delivered from the cumbrous struggle between good and bad, heroes and villains. None of these three was bad, nor were they particularly good. She need not judge. There did not have to be a moral. She need only show separate minds, as alive as her own, struggling with the idea that other minds were equally alive. It wasn’t only wickedness and scheming that made people unhappy, it was confusion and misunderstanding; above all, it was the failure to grasp the simple truth that other people are as real as you. And only in a story could you enter these different minds and show how they had an equal value. That was the only moral a story need have.”