It did not come, but he was not troubled. Let her pass a white night re-examining her life and what was meaningful, let her weigh in the scales of human worth a horny-handed Tarpin and his shrouded boat against ethereal Beard of planetary renown. The following five nights she stayed home, as far as he could tell, while he was committed to his lecture and other meetings and dinners, and when he came in, usually after midnight, he hoped his confident footfalls gave the impression to the darkened house of a man returning from a tryst.

On the sixth night, he was free to stay in, and she chose to go out, having spent longer than usual under shower and hairdryer. From his place, a small, deeply recessed window on a first-floor half-landing, he watched her go along the garden path and pause by a tall drift of vermilion hollyhocks, pause as though reluctant to leave, and put her hand out to examine a flower. She picked it, squeezing it between newly painted nails of thumb and forefinger, held it a moment to consider, then let it drop to her feet. The summer dress, beige silk, armless, with a single pleat in the small of her back, was new, a signal he was uncertain how to read. She continued to the front gate and he thought there was heaviness in her step, or at least some slackening of her customary eagerness, and she parted from the kerb in the Peugeot at near-normal acceleration.

But he was less happy that night waiting in, confused again about his judgement, beginning to think he was right after all, his radio prank had sunk him. To help think matters through he poured a scotch and watched football. In place of dinner he ate a litre tub of strawberry ice cream and prised apart a half-kilo of pistachios. He was restless, bothered by unfocused sexual need, and coming to the conclusion that he might as well be having or resuming a real affair. He passed some time turning the pages of his address book, stared at the phone a good while, but did not pick it up.

He drank half the bottle and before eleven fell asleep fully dressed on the bed with the overhead light on, and for several seconds did not know where he was when, some hours later, he was woken by the sound of a voice downstairs. The bedside clock showed two thirty. It was Patrice talking to Tarpin, and Beard, still fortified by drink, was in the mood to have a word. He stood groggily in the centre of the bedroom, swaying a little as he tucked in his shirt. Quietly, he opened his door. All the house lights were on, and that was fine, he was already going down the stairs with no thought for the consequences. Patrice was still talking, and as he crossed the hall towards the open sitting-room door he thought that he heard her laughing or singing and that he was about to break up a little celebration.

But she was alone and crying, sitting hunched forward on the sofa with her shoes lying on their sides on the long glass coffee table. It was an unfamiliar bottled, keening sound. If she had ever cried like this for him, it had been in his absence. He paused in the doorway and she did not see him at first. She was a sad sight. A handkerchief or tissue was twisted in her hand, her delicate shoulders were bowed and shaking, and Beard was filled with pity. He sensed that a reconciliation was at hand and that all she needed was a gentle touch, kind words, no questions, and she would fold into him and he would take her upstairs, though even in his sudden warmth of feeling, he knew he could not carry her, not even in both arms.

As he began to cross the room a floorboard creaked and she looked up. Their eyes met, but only for a second because her hands flew up to her face and covered it as she twisted away. He said her name, and she shook her head. Awkwardly, with her back to him, she got up from the sofa and, walking almost sideways, she stumbled on the polar-bear skin that tended to slide too easily on the polished wooden floor. He had come close to breaking an ankle once and had despised the rug ever since. He also disliked its leering, wide-open mouth and bared teeth yellowed by exposure to the light. They had never done anything to secure it to the floor, and there was no question of throwing it out because it was a wedding present from her father. She steadied herself, remembered to pick up her shoes and, with a free hand covering her eyes, hurried past him, flinching as he reached out to touch her arm, and beginning to cry again, more freely this time, as she ran up the stairs.

He turned off the lights in the room and lay on the sofa. Pointless to go after her when she did not want him, and it did not matter now, because he had seen. Too late for her hand to conceal the bruise below her right eye that spread across the top of her cheek, black fading to inflamed red at its edges, swelling under her lower lid, forcing the eye shut. He sighed aloud in resignation. It was inevitable, his duty was clear, he would have to get in his car now and drive to Cricklewood, lean on the doorbell until he had brought Tarpin from his bed, and have it out with him, right there beneath the coach lamp, and surprise his loathed opponent with an astonishing turn of speed and purpose. With eyes narrowing, he thought it through again, lingering on the detail of his right fist bursting through the cartilage of Tarpin’s nose, and then, with minor revisions, he reconsidered the scene through closed eyes, and did not stir until the following morning when he was woken by the sound of the front door closing as she left for work.

He held an honorary university post in Geneva and did no teaching there, lent his name, his title, Professor Beard, Nobel laureate, to letterheads, to institutes, signed up to international ‘initiatives’, sat on a Royal Commission on science funding, spoke on the radio in layman’s terms about Einstein or photons or quantum mechanics, helped out with grant applications, was a consultant editor on three scholarly journals, wrote peer reviews and references, took an interest in the gossip, the politics of science, the positioning, the special pleading, the terrifying nationalism, the tweaking of colossal sums out of ignorant ministers and bureaucrats for one more particle accelerator or rented instrument space on a new satellite, appeared at giant conventions in the US – eleven thousand physicists in one place! – listened to post-docs explain their research, gave with minimal variation the same series of lectures on the calculations underpinning the Beard-Einstein Conflation that had brought him his prize, awarded prizes and medals himself, accepted honorary degrees, and gave after-dinner speeches and eulogies for retiring or about-to-be-cremated colleagues. In an inward, specialised world he was, courtesy of Stockholm, a celebrity, and he coasted from year to year, vaguely weary of himself, bereft of alternatives. All the excitement and unpredictability was in the private life. Perhaps that was enough, perhaps he had achieved all he could during one brilliant summer in his youth. One thing was certain: two decades had passed since he last sat down in silence and solitude for hours on end, pencil and pad in hand, to do some thinking, to have an original hypothesis, play with it, pursue it, tease it into life. The occasion never arose – no, that was a weak excuse. He lacked the will, the material, he lacked the spark. He had no new ideas.

But there was a new government research establishment on the outskirts of Reading, hard against the roar of the motorway’s eastbound section and downwind of a beer factory. The Centre was supposed to resemble the National Renewable Energy Laboratory in Golden, Colorado, near Denver, sharing its aims, but not its acreage or funding. Michael Beard was the new Centre’s first head, though a senior civil servant called Jock Braby did the real work. The administrative buildings, some of whose dividing walls contained asbestos, were not new, and nor were the laboratories, whose purpose had once been to test noxious materials for the building trade. All that was new was a three-metre-high barbed-wire and concrete post fence, with regularly spaced keep-out signs, thrown up around the perimeter of the National Centre for Renewable Energy without Beard’s or Braby’s consent. It represented, they soon found out, seventeen per cent of the first year’s budget. A sodden, twenty-acre field had been bought from a local farmer, and work to begin on drainage was in the planning stage.