"Not all," replied Ricardo modestly, "and you will not mind, I am sure, if I follow the usual custom and wish you a good morning." "Not at all," said Hanaud. "I am all for good manners myself." He dipped his spoon into his egg. "But I am longing to hear the line of your reasoning." Mr. Ricardo did not need much pressing. "Joan Carew saw André Favart at Mrs. Starlingshield's party, and saw him with Carmen Valeri. For Carmen Valeri was there. I remember that you asked Joan for the names of the artists who sang, and Carmen Valeri was amongst them." Hanaud nodded his head. "Exactly." "No doubt Joan Carew noticed Carmen Valeri particularly, and so took unconsciously into her mind an impression of the man who was with her, André Favart--of his build, of his walk, of his type." Again Hanaud agreed. "She forgets the man altogether, but the picture remains latent in her mind--an undeveloped film." Hanaud looked up in surprise, and the surprise flattered Mr. Ricardo. Not for nothing had he tossed about in his bed for the greater part of the night. "Then came the tragic night at the Semiramis. She does not consciously recognise her assailant, but she dreams the scene again and again, and by a process of unconscious cerebration the figure of the man becomes familiar. Finally she makes her début, is entertained at supper afterwards, and meets once more Carmen Valeri." "Yes, for the first time since Mrs. Starlingshield's party," interjected Hanaud. "She dreams again, she remembers asleep more than she remembers when awake. The presence of Carmen Valeri at her supper-party has its effect. By a process of association, she recalls Favart, and the mask slips on the face of her assailant. Some days later she goes to the opera. She hears Carmen Valeri sing in _The Jewels of the Madonna_. No doubt the passion of her acting, which I am more prepared to acknowledge this morning than I was last night, affects Joan Carew powerfully, emotionally. She goes to bed with her head full of Carmen Valeri, and she dreams not of Carmen Valeri, but of the man who is unconsciously associated with Carmen Valeri in her thoughts. The mask vanishes altogether. She sees her assailant now, has his portrait limned in her mind, would know him if she met him in the street, though she does not know by what means she identified him." "Yes," said Hanaud. "It is curious the brain working while the body sleeps, the dream revealing what thought cannot recall." Mr. Ricardo was delighted. He was taken seriously. "But of course," he said, "I could not have worked the problem out but for you. You knew of André Favart and the kind of man he was." Hanaud laughed.