Prologue

The first argument about Primrose Cottage began before either of them had a key.

Aoife Byrne was standing in the solicitor's office with a coat still damp from sea mist, a folder of unpaid invoices under one arm, and the kind of composure women learned when crying would only give men with leather chairs something to pity. Across the desk, Cillian Hayes looked as if he had been dragged from a building site and dropped among mahogany, wills, and polished brass against his better judgement. There was plaster dust on one sleeve of his black jacket. There was a bruise blooming along his knuckles. There was also, unforgivably, her grandfather's old ribbon of keys in his hand.

Aoife knew that ribbon. Blue once, now faded almost grey, frayed where her grandmother had worried it during phone calls and wakes and waiting rooms. One large iron key hung from it, old enough to belong in a museum or a ghost story, and three smaller keys clinked against it whenever Cillian shifted his grip. The sound went through Aoife like a spoon striking a cracked cup. Home, it said. Trouble, it answered.

'There has to be a mistake,' she said, because the respectable middle-class thing to do in a room like this was to begin with denial before graduating to legal threats. 'My grandfather left the cottage to me.'

Mr Donnelly, local solicitor, executor, keeper of half the town's sins in filing cabinets, folded his hands on the will as if he could physically hold it together. 'He left his share of the cottage to you, Aoife.'

Cillian gave one short laugh. It had no humour in it. 'His share.'

Aoife looked at him then. Properly. Not as Tommy Hayes's eldest grandson, not as the boy who had once lifted her over the flooded lane when they were twelve, not as the man whose family name had sat beside hers in every whispered version of the old feud. He was taller than memory had any right to make him, shoulders built by labour rather than gym vanity, eyes the colour of rain caught in slate. He looked tired. Worse, he looked hurt. That annoyed her. She did not want to recognise pain in him. Recognition was the thin end of forgiveness, and she had no budget for that today.

Mr Donnelly continued, 'The land registry, the old deed, and your grandfather's will are all consistent. Primrose Cottage was never solely in the Byrne family. Half of it passed through the Hayes line after the original division in nineteen sixty-eight. Thomas Hayes's interest now passes to Cillian.'

'Thomas Hayes hated that cottage,' Aoife said. 'He used to call it a damp apology with windows.'

'That was on a generous day,' Cillian muttered.

She ignored him. 'My grandmother lived there. My mother grew up there. I spent every summer there until...' She stopped before until became a trapdoor. Until the funeral. Until the shouting on the pier. Until Cillian's father said something unforgivable and her mother said something worse. Until two families learned to cross the street instead of speaking.

Mr Donnelly slid two photocopied documents across the desk. 'The will includes a condition.'

Aoife felt the room lower itself around her. 'Of course it does.'

'The cottage may not be sold, transferred, leased long-term, or substantially altered for ninety days from the date both heirs receive keys. During that period, both heirs must occupy the property for no fewer than forty-five nights.'

Cillian straightened. 'Occupy it.'

'Yes.'

'Together?'

Mr Donnelly's mouth twitched in professional sympathy. 'The will does not require you to share a bed, Mr Hayes.'

'Kind of it,' Aoife said.

Cillian glanced at her, and for one stupid second the old rhythm sparked: her dry line, his almost-smile, the two of them trying not to laugh in church. Then the present came back in its wet shoes and stood between them.

'I have a flat in Dublin,' Aoife said. 'A job. A manager who considers annual leave a personal betrayal. I cannot move into a half-rotten cottage because my grandfather decided to become whimsical after death.'

'I have contracts,' Cillian said. 'Men waiting on wages. A yard full of timber and one excavator that only starts when praised like a rescue dog. I'm not playing inheritance sleepover either.'

Mr Donnelly lifted the old key between finger and thumb. 'If either of you fails the condition, your share passes into a preservation trust chaired by your aunt Maura and Mr Hayes's uncle Brendan.'

Aoife and Cillian spoke at once. 'Absolutely not.'

That was the first agreement. It landed with all the grace of a dropped brick.

Aunt Maura loved history as long as history obeyed her. Brendan Hayes loved power in the way some men loved whiskey: loudly, daily, and with a belief that everyone else should admire the damage. If those two got control of Primrose Cottage, the place would become a visitor centre, a battlefield, or, knowing the town, both by Easter.

'There is more,' Mr Donnelly said, which was solicitor for please do not throw anything expensive.

He opened a small envelope and tipped a second key onto the desk. This one was brass, newer, threaded on a green ribbon. Aoife recognised the handwriting on the label before she could stop herself. Her grandfather's blocky capitals: FOR THE ROOM UNDER THE STAIRS. TO BE OPENED ONLY WHEN THEY ARE BOTH THERE.

Cillian went very still.

Aoife hated that too, because she had gone still first.

'What room under the stairs?' he asked.

'There isn't one,' she said. 'There is a cupboard with a broken Hoover, three tins of paint, and a smell my grandmother blamed on the sea.'

'Then why does it have a key?'

Mr Donnelly leaned back. 'That, I suspect, is the point of the condition.'

Outside, the town carried on with its shameless curiosity. A bus sighed at the stop. A gull screamed as if personally wronged. Someone knocked on the frosted glass, then thought better of it. Glenbarrow was very good at pretending not to look while measuring every breath you took. By teatime, the whole place would know Aoife Byrne and Cillian Hayes had inherited the same cottage. By supper, someone would have decided they were sleeping together. By breakfast, Aunt Maura would have a petition.

Aoife picked up the photocopy with fingers that did not quite feel like hers. She saw the legal words, the dates, the signatures. She saw her grandfather's name, Patrick Byrne, neat and stubborn at the bottom of a page. She saw the name Thomas Hayes beside his on an older deed, ink faded but not gone. Two men who had not spoken for twenty-eight years had apparently owned the same house all along.

'Why?' she asked, quieter now.

Mr Donnelly's expression softened, and that frightened her more than the paperwork. 'Patrick said you would ask that. He also said the cottage would tell you before anyone else did.'

Cillian looked down at the keys. 'Houses don't talk.'

Aoife remembered the cottage in winter, shutters rattling like teeth, the kettle singing on the range, her grandmother pressing warm bread into her hands. She remembered wallpaper peeling in the back bedroom, one rose pattern beneath another, each generation papering over what it could not bear to explain. She remembered Cillian at fifteen on the pier with blood on his lip, saying, They lied to us, Aoife, and her being too angry to ask who.

'No,' she said. 'They keep things until you're desperate enough to listen.'

Mr Donnelly placed the iron key between them. Neither reached for it. Pride was a stupid little god, but both families had worshipped faithfully.

'The ninety days begin today,' he said.

Cillian's jaw worked. 'And if the roof collapses in the meantime?'

'Then you will have inherited a metaphor,' Mr Donnelly said.

Aoife almost smiled. Almost. Then she saw Cillian looking at her as though he remembered every summer she wished he would forget, and her face closed again.

She took the blue ribbon first. The iron key was cold, heavier than it looked. Cillian's fingers brushed hers when he reached for the green ribbon, and the touch was nothing. It was skin, accident, electricity invented by grief and bad lighting. Still, Aoife felt it all the way up her arm.

'Forty-five nights,' she said.

'Ninety days,' he replied.

'We make a schedule. We keep to our halves. We fix whatever has to be fixed for a valuation, then we decide what is legally possible.'

'You mean we sell.'

'I mean we survive the will without giving Maura and Brendan a stage.'

Cillian's mouth tightened. 'Fine.'

'Fine.'

They stood together, two adults pretending not to be children at the edge of the same forbidden lane. Mr Donnelly watched them with the exhausted patience of a man who had seen love, property, and death make fools of better people.

When Aoife stepped out into the street, the sea wind came hard off the harbour and pushed her hair across her mouth. Cillian followed, holding the second key as if it might bite. Across the road, the pub door opened a careful inch. Mrs Kelleher from the bakery suddenly found the solicitor's window fascinating. The town had begun its work.

Primrose Cottage waited on the headland above the pier, damp-walled and stubborn, its windows dark in the afternoon rain. Aoife could not see it from the street, but she felt the pull of it all the same: a house with two heirs, one locked room, and a past that had clearly run out of patience.

Cillian looked toward the hill. 'I'll meet you there at six.'

'Bring a torch,' she said. 'The wiring hates everyone.'

'I remember.'

Of course he did. That was the worst of him. He remembered where the fuse box was, how her grandmother took tea, which board in the hall sang under bare feet. He remembered the cottage not as an asset, not as a legal complication, but as a place that had once held them both before the adults broke it into sides.

Aoife wrapped the old blue ribbon twice around her palm. The key pressed into her lifeline, leaving a red crescent in the skin.

At six o'clock, the cottage would open. At six o'clock, the room under the stairs would become a question neither family could bury. At six o'clock, Aoife Byrne would walk back into the only house she had ever loved and find Cillian Hayes already there, because some arguments were not inherited so much as unfinished.