If I were to write this novel, the main theme, or motif, would be buried, at first, and only slowly take over. The motif of Paul's wife-the third. At first Ella does not think about her. Then she has to make a conscious effort not to think about her. This is when she knows her attitude towards this unknown woman is despicable: she feels triumph over her, pleasure that she has taken Paul from her. When Ella first becomes conscious of this emotion she is so appalled and ashamed that she buries it, fast. Yet the shadow of the third grows again, and it becomes impossible for Ella not to think. She thinks a great deal about the invisible woman to whom Paul returns (and to whom he will always return), and it is now not out of triumph, but envy. She envies her. She slowly, involuntarily, builds up a picture in her mind of a serene, calm, unjealous, unenvious, undemanding woman, full of resources of happiness inside herself, self-sufficient, yet always ready to give happiness when it is asked for. It occurs to Ella (but much later, about three years on) that this is a remarkable image to have developed, since it does not correspond to anything at all Paul says about his wife. So where does the picture come from? Slowly Ella understands that this is what she would like to be herself, this imagined woman is her own shadow, everything she is not. Because by now she knows, and is frightened of, her utter dependence on Paul. Every fibre of herself is woven with him, and she cannot imagine living without him. The mere idea of being without him causes a black cold fear to enclose her, so she does not think of it. And she is clinging, so she comes to realise, to this image of the other woman, the third, as a sort of safety or protection for herself.