Hercules Poirot stood alone the lovers he had saved from the gallows had departed. He had tears in the corners of his eyes and said: I, Hercules Poirot, the most famous detective in the world I cannot understand the nature of love. I concur. My wife and I have been together for twenty years. I love her dearly; she does not care about my writing; it might upset people. Her female logic makes me knotted in despair, but what can I do? We have grown old together, and my nightmare is to live longer than her. She is the practical one. I see conspiracy theory everywhere. When Hercules Poirot could not solve the problem, I give up too and go on loving her.