So it was that Eileen found herself practically a prisoner in her own home. She received the visitors invited by her father at first with a mechanical courtesy, but later on with an assumption of cheerfulness that deceived her father and even to more extent the doctor. She had begun to realise that she would never shake off the vigilance which surrounded her until she had convinced folk that she had regained her normal spirits. Her capabilities as an actress, which had won for her leading parts in many amateur plays, had never been taxed so hardly. But then she had invariably been cast for comedy. Now she felt she was playing tragedy. For night and day she never forgot. Always there was one thought hammering at her brain. She withdrew into the room as a neat little motor-brougham halted at the door. In a little while Mrs. Porter-Strangeways was announced. Reluctantly Eileen condescended to welcome the portly, middle-aged dame who was tacitly recognised as being the leader of American society in London. The girl smiled brightly as the woman rose to greet her with both arms outstretched. "It is so good of you, dear Mrs. Porter-Strangeways," she exclaimed. "I have only my friends to look forward to now." Mrs. Porter-Strangeways indicated her companion by some subtle means of her own. "You poor girl!" she exclaimed, throwing just the right reflection of sympathy into her not unmusical voice. "I called before, but you were unfit to see any one then. I took the liberty of bringing a friend to see you--the Princess Petrovska." The name conveyed nothing to Eileen. She knew not how the woman she faced was concerned in the tangle in which she herself was involved. She saw only a slim, beautifully dressed woman, whose age might have been somewhere between thirty and forty, and who still laid claim to a gipsy-like beauty. The dark eyes of the Princess dwelt upon the girl with a sort of well-bred curiosity. Mrs. Porter-Strangeways imparted information in a swift whisper. "A Russian title, I believe. Met her in Rome two years ago. She is a delightful woman--so bright and happy, though I believe, poor dear, she had a terrible time before her husband died. She called on me yesterday and asked me to bring her to see you. She's so interested in you. You don't mind?" The quick thought that she was being made a show of caused a spasm to flicker across Eileen's face. Almost instantly she regained her composure, and for half an hour Mrs. Porter-Strangeways prattled on. The other took little part in the conversation. Eileen could feel that the Princess was watching her closely under her cast-down eyelashes. The woman repelled and yet fascinated her. When the time came for leave-taking she found herself giving a pressing invitation to the other to call again. With a smile of satisfaction the Princess promised. They had not been gone a quarter of an hour when the Princess was announced alone. Eileen, a little astonished, received her questioningly.