She was obeying an impulse, of course, as she always had done, from the beginning, throughout her life, following a whisper, a suggestion, that sprang into being from nowhere and mocked at her afterwards. She had married Harry on impulse, because of his laugh - its funny lazy quality had attracted her - and because she had thought that the expression in his blue eyes meant much more than it did - and now she realised that after all… but then those were things one did not admit, not even to oneself, and what was the use, the thing was done, and here she was with her two great children, and next month anyway she would be thirty.

No, it was not poor Harry who was to blame, nor even the senseless life they led, nor the foolish escapades, nor their friends, nor the stifling atmosphere of a too early summer falling upon the caked mud and dust of London, nor the silly chatter in the playhouse, the froth, the frivolity, the bawdy nonsense Rockingham whispered in her ear. It was herself who was at fault.

She had played too long a part unworthy of her. She had consented to be the Dona her world had demanded - a superficial, lovely creature, who walked, and talked, and laughed, accepting praise and admiration with a shrug of the shoulder as natural homage to her beauty, careless, insolent, deliberately indifferent, and all the while another Dona, a strange, phantom Dona, peered at her from a dark mirror and was ashamed.

This other self knew that life need not be bitter, nor worthless, nor bounded by a narrow casement, but could be limitless, infinite - that it meant suffering, and love, and danger, and sweetness, and more than this even, much more. Yes, the full force of her self-loathing had come upon her that Friday evening, so that even now, sitting in the coach, with the soft country air bathing her face, she could conjure up once more the hot street smell that came up from the London gutters, a smell of exhaustion and decay, that had merged in some inexplicable way with the heavy, sultry sky, with Harry's yawn as he dusted the skirt of his coat, with Rockingham's pointed smile - as though they all typified a weary, dying world from which she must free herself and escape, before the sky fell in upon her and she was trapped. She remembered the blind hawker at the corner, his eyes pricked for the tinkle of a coin, and the apprentice boy from the Haymarket who ambled along with his tray on his head, shouting his wares in a shrill, disconsolate voice, and how he had fallen over some garbage in the gutter and spilled the contents on the dusty cobbled stones. And oh, heaven - the crowded playhouse, the stench of perfume upon heated bodies, the silly laughter and the clatter, the party in the Royal box - the King himself present - the impatient crowd in the cheap seats stamping and shouting for the play to begin while they threw orange peel onto the stage. Then Harry, laughing at nothing in particular as was his custom, became fuddled with the wit of the play, or possibly he had drunk too much before they had set out. Anyway he had started snoring in his seat, and Rockingham, seizing his chance to make a diversion, pressed against her with his foot and whispered in her ear. Damn his impudence, his air of possession, of familiarity, all because she had permitted him to kiss her once, in an idle moment, because the night was fine. And they had proceeded to supper at the Swan, which she had grown to detest, her amusement at its novelty having ceased - for it was no longer a stimulant to be the only wife amongst a crowd of mistresses.

Once it had held a certain attraction, it had sharpened her sense of fun to sup with Harry in these places where no other husband took his wife, to sit cheek by jowl with the ladies of the town and to see Harry's friends first scandalised, then fascinated, and finally whipped into a fever, like curious schoolboys who tread forbidden ground. And yet even then, even at the beginning, she had felt a little prick of shame, a curious sense of degradation, as though she had dressed up for a masquerade and the clothes had not fitted her well.

While Harry's lovable and slightly stupid laugh, his expression of half-shocked dismay: "You've made yourself the talk of the town, you know, the fellows are gossiping about you in the taverns," had not served as a rebuke but as an irritant. She had wished that he would be angry, would shout at her, insult her even - but he only laughed, shrugging his shoulders, and fondled her in heavy, clumsy fashion, so that she knew her folly had not touched him, that inwardly he was really quite pleased that men were gossiping about his wife and admiring her, because it made him a person of importance in their eyes. The coach lurched over a deep rut in the road, and James stirred in his sleep. His little face puckered as though to cry, and Dona reached for the toy that had slipped from his grasp, and he cuddled it to his mouth, and so slept once more. He looked like Harry did when demanding a reassurance of her affection, and she wondered why it was that a quality so attractive and touching in James should seem to her, in Harry, more than a little absurd and a secret source of irritation.

Dressing that Friday night, placing the rubies in her ears to match the pendant round her throat, she had been reminded suddenly of James snatching the pendant, and stuffing it in his mouth, and she had smiled to herself, thinking of him, and Harry, standing beside her, dusting the lace at his wrists, had caught the smile and turned it into an invitation. "Damn it, Dona," he had said, "why do you look at me like that? Don't let's go to the play, hang Rockingham, hang the world, why the devil don't we stay at home?" Poor Harry, how vain, how typical, provoked by a smile that was not for him into instant adoration. She had said: "How ridiculous you are," turning from him, so that he should not touch her bare shoulder with his clumsy hands, and at once his mouth had set in that grumpy, obstinate line she knew so well, so that they set out to the play, as they had done to other plays and to other suppers, times without number, with moods ill-tuned and tempers frayed, putting an edge upon the evening before it had begun.

Then he had called to his spaniels, Duke and Duchess, and they had yapped up at him for sweetmeats, filling the room with their shrill barking, leaping and jumping at his hands.

"Hey, Duke, hey, Duchess," he had said, "go seek, go find," throwing a sweetmeat across the room and on to her bed, so that they clawed at the curtains, and tried to spring upon it, yapping horribly the while, and Dona, her fingers in her ears to thrust out the sound, swept from the room and downstairs to her waiting chair, white, and cold, and angry, to be met with the hot street smells and the breathless vapid sky.

Once more the coach shook and trembled in the deep ruts of the country road, and this time it was the nurse who stirred - poor wretched Prue, her foolish, honest face all heavy and mottled with fatigue, how she must grudge her mistress this sudden inexplicable journey - and Dona wondered whether she had left some young man forlorn in London who would prove false in all probability and marry somebody else and Prue's life would be blighted, all because of her, Dona, and her whims and fancies and savage ill-humour. What would poor Prue find to do at Navron House, but parade the children up and down the avenue and through the gardens, sighing for the streets of London hundreds of miles away. Were there gardens at Navron? She could not remember. It all seemed so long ago, that brief visit after she had married. There were trees surely, and a shining river, and great windows that opened from a long room, but more than this she had forgotten, because she had felt so ill during those days, with Henrietta on the way, and life one endless business of sofas, and sickness, and smelling bottles. Suddenly Dona felt hungry, the coach had just rumbled past an orchard and the apple trees were in blossom, and she knew she must eat now, at once, without more ado, on the side of the road in the sunshine, they must all eat - so she thrust her head out of the window and called up to her coachman: "We will halt here for a while, and eat. Come and help me spread the rugs beneath the hedge."