"Very curious," I agreed. "But, then, so is everything else if you look at it like that." "No, no," said Miss Penny. "Nothing's so curious as our business. But I shall never get to the end of my story if I get started on first principles." Miss Penny continued her narrative. I was still thinking of literature. Do you believe in it? Seriously? Ah! Luckily the question was quite meaningless. The story came to me rather vaguely, but it seemed that the young man was getting better; in a few more days, the doctor had said, he would be well--well enough to go back to jail. No, no. The question was meaningless. I would think about it no more. I concentrated my attention again. "Sister Agatha," I heard Miss Penny saying, "prayed, exhorted, indoctrinated. Whenever she had half a minute to spare from her other duties she would come running into the young man's room. 'I wonder if you fully realise the importance of prayer?' she would ask, and, before he had time to answer, she would give him a breathless account of the uses and virtues of regular and patient supplication. Or else, it was: 'May I tell you about St. Theresa?' or 'St. Stephen, the first martyr--you know about him, don't you?' Kuno simply wouldn't listen at first. It seemed so fantastically irrelevant, such an absurd interruption to his thoughts, his serious, despairing thoughts about the future. Prison was real, imminent and this woman buzzed about him with her ridiculous fairy-tales. Then, suddenly, one day he began to listen, he showed signs of contrition and conversion. Sister Agatha announced her triumph to the other nuns, and there was rejoicing over the one lost sheep. Melpomene had never felt so happy in her life, and Kuno, looking at her radiant face, must have wondered how he could have been such a fool as not to see from the first what was now so obvious. The woman had lost her head about him. And he had only four days now--four days in which to tap the tumultuous love power, to canalise it, to set it working for his escape. Why hadn't he started a week ago? He could have made certain of it then. But now? There was no knowing. Four days was a horribly short time." "How did he do it?" I asked, for Miss Penny had paused. "That's for you to say," she replied, and shook her ear-rings at me. "I don't know. Nobody knows, I imagine, except the two parties concerned and perhaps Sister Agatha's confessor. But one can reconstruct the crime, as they say. How would you have done it? You're a man, you ought to be familiar with the processes of amorous engineering."