August was a miserable month for Katherine in the hot attic, hard at work on her own pictures, and too often finishing the various orders for black and white which Knowles had after all managed to put in Ted's way. She could have stood the hard work if she had not been more than ever worried on Ted's account. With her feminine instinct sharpened by affection, she foresaw trouble at hand--complications which it would never have entered into the boy's head to consider. For reasons of her own Audrey was still keeping her engagement a secret. She was less regular, too, in making appointments, fixing days for Ted to go over and see her; and more often than not he missed her if he happened to call at Chelsea Gardens of his own accord. At the same time she came to Devon Street as often as, or oftener than, ever, and there her manner to Ted had all its old charm, with something added; it was more deeply, more seriously affectionate than before. And yet it was just in these tender passages that Katherine detected the change of key. That tenderness was not remorse, as she might have supposed. It had nothing to do with the past, being purely an emotion of the passing moment. Audrey was playing a new part. Her mind was swayed by a fresh current of ideas; it had suffered the invasion of a foreign personality. The evidence for this was purely psychological, but it all pointed one way. A sudden display of new interests, a startling phrase, a word hitherto unknown in Audrey's vocabulary, her way of handling a book, the alternate excitement and preoccupation of her manner, they were all unmistakable. Katherine had noticed the same signs in the days of Audrey's first absorption in Ted. She had caught his tricks, his idioms, his way of thinking. She had even begun to see, like Ted, the humour of things, and to make reckless speeches, not quite like Ted, that shocked cousin Bella's sense of propriety. Katherine had smiled at her innocent plagiarism, and wondered at the transforming power of love. And now--Audrey was actually undergoing another metempsychosis. Under whose influence? Here again Katherine's instinct was correct. It was Wyndham's presence that in three weeks had brought about the change. Yes; in that impressive affection, in the pleading tremor of her voice, in her smiles and caresses, Audrey was acting a part before one invisible spectator. She played as if Wyndham were standing by and looking on. Her love for Ted had been a reality; therefore it served as a standard to measure all emotions by--it made this new passion of the imagination a thing of flesh and blood. No wonder that she would not announce her engagement. At the best of times her fluent nature shrank from everything that was fixed and irrevocable--above all from the act of will that trammelled her wandering fancy, the finality that limited her outlook upon life. And now it was impossible. The three weeks in which she had known