Seven o’clock released him from his self-imposed task. At half-past seven he dined with his family, and having dined was free to cultivate such social amenities as he did not utterly despise. He formed the habit of seeking out Sheila; he persuaded her to go for walks with him: strenuous almost racing walks, conscientious and concentrated exercise, essential to the maintenance of physical and therefore mental fitness. She, glad of an antidote for the daily dose of omniscience forced down her throat by Hypatia, welcomed this new friendship. She was a willing and intelligent listener; the quickness of her mind delighted him, and his appreciation evoked an answering delight in her. The variety and colour of her thinking, a habit she had of investing with emotion even the dry bones of argument, provided a foil for Edward’s exact logic. She took imaginative leaps in metaphysical speculation, while he plodded laboriously on from point to point, never retracing a step. They sharpened their wits against each other and felt marvellously stimulated by the process. And still it was of the book, and of cognate subjects, that he talked, in an unending torrent of discourse. He involved himself in sentences so prodigious that Sheila sometimes got lost in a labyrinth of phrases and subordinate clauses. More than once she felt rising in her a secret impatience; she even got to the point of contemplating the discontinuance of an intercourse that became daily more overpowering. Yet looking back, as the days passed, upon that vista of intimate, flushed, excited talk, she could not find heart to cut adrift from him; moreover, he had made her feel, not without a sense of her presumption, that she had somehow become necessary to his literary scheme. These enormously distended monologues of his helped him to clarify his thought, and her occasional interpolated criticism freshened his dialectic processes. She felt a certain responsibility for him.

Mrs. Fairfield observed this ripening intimacy with a curious admixture of benevolence and displeasure. One evening she came upon her son and Sheila sauntering in the garden together a few minutes before seven, and smiled at her guest with an inimical glint in her eye.

‘Sheila dear,’ she said bitter-sweetly, ‘you mustn’t take my son from his work.’

Sheila, flushing with resentment, could make no reply.

‘Mother,’ said Edward, neither hotly nor coldly, ‘you interrupt the thread of my argument.’

Mrs. Fairfield flashed a point of jealous fire at Sheila, who turned on her heel, biting her lips in vexation. She was astounded and ashamed by this momentary and involuntary revelation of a woman’s soul.

Edward followed her without an instant’s hesitation.

‘See you at dinner, mother,’ he said casually, over his shoulder.... ‘The matter is not quite so simple as that,’ he went on, speaking to the girl at his side. ‘The vitalist hypothesis has implications that lie deeper than that altogether, and that run, in my opinion, altogether counter to the ascertained facts of experience. Chemical analysis....’

Sheila let him ramble on, grateful that he took no notice of her evident embarrassment. She wished he had left her. She wanted to escape from the intolerable sense of having been delivered an insulting ultimatum, a warning, by Edward’s detestable mother. Yes, Edward’s detestable mother: that was how she thought of the woman in whose mien she had read ‘Hands off my property!’ Her instinct was to run away from the house and never return; but slowly, as Edward’s sentences gathered length and momentum, she came to regard such an action as merely melodramatic.

She cut one of his clauses in half by asking abruptly: ‘What did your mother mean by that?’