I really cannot understand the point of what you're saying....

I really cannot understand the point of what you're saying. Really,' said Clotilde, looking at her. 'What a very extraordinary person you are. What sort of a woman are you? Why are you talking like this? Who are you?' Miss Marple pulled down the mass of pink wool that encircled her head, a pink wool scarf of the same kind that she had once worn in the West Indies. 'One of my names,' she said, 'is Nemesis.' 'Nemesis? And what does that mean?' 'I think you know,' said Miss Marple. 'You are a very well educated woman. Nemesis is long delayed sometimes, but it comes in the end.