"That box can go," he said, without looking inside.

"How do you know, if you haven't even checked what's in it?"

His mouth tightened. "Because it's the one with the fax machine in it. Nobody has used a fax machine in this house since Jonathan was in primary school."

She let it go. He was probably right, and arguing with him about a fax machine was not how she wanted to spend the morning.

It wasn't a big room. Boxes along the walls, taped shut, dated in marker. Grey light through curtainless windows. It had been Jonathan's once, then the room where things went when nobody knew what else to do with them. Now they were clearing it for the move. Neither of them had said out loud why their son had not called in eleven months, and every time she tried to raise it, her husband found something urgent to do with his hands — a shelf to unscrew, a lamp cord to coil.

She pulled a box toward her, knees cracking as she knelt on the bare floorboards.

Baby things — Jonathan, in her own handwriting, twenty-some years faded, the ink gone the colour of weak tea.

A faint smell of Zwitsal shampoo rose from the box. She couldn't believe it was still there after all these years, folded in with the cotton.

Under the folded rompers, wedged against the side, sat a smaller box. She knew it immediately.

Plain cardboard. No bigger than a shoebox lid. One word in her husband's handwriting, pressed so hard into the cardboard it had nearly torn through — the hand of someone trying not to write it at all.

Confidential.

For a moment she simply looked at it, her hand resting flat on the lid.

She had taken it from the garage years ago, from the larger box where he kept old case files, tax returns and papers he never threw away. She had placed it beneath Jonathan's baby clothes after giving up on finding the right moment herself. She had expected him to find it sooner.

The lid was loose. Someone had opened it and closed it again, not quite squarely.

"You can leave that one," her husband said.

He stood in the doorway with two cups of cappuccino, steam curling off them into the cold room. He had not come far enough into the room to read the label, but he had seen where she found it, and something in the set of his shoulders told her that was enough.

"It was in with Jonathan's things," she said.

Something in his face changed. Not surprise. Recognition.

"I thought he took that."

She looked at him. "Jonathan found it?"

He set the cups down on the windowsill, one at a time, carefully, as if precision might buy him a moment.

"Two years ago."

"And you never told me."

"He came to me with it. Asked what it was."

The form was still inside, and she lifted it out. Thin paper, faint print, two signature blocks near the bottom. His name in one. Hers in the other.

She remembered the clinic room, the pen attached to a plastic chain, the buzz of a fluorescent light overhead, and the doctor explaining that biology was not the only route to fatherhood.

Her husband had signed first.

"What did you tell him?" she asked.

He did not answer. He looked at the two cups on the sill instead.

"What did you tell him?"

"That it was insurance paperwork."

She gripped the form until the edge of it dented her palm.

"You lied to him."

"I panicked."

"You lied."

"He's my son."

"So you told him the truth didn't concern him?"

"I told him what I could manage to tell him at the time."

"That isn't the same thing."

"No." His voice had gone flat, all the warmth wrung out of it. "It isn't."

He crossed the room and took the box from her, his fingers closing over hers for a second before she let go.

"I spent twenty years being his father in every way that matters," he said. "I wasn't going to let one form turn me into a footnote in his own story."

"It wouldn't have."

"You don't know that."

"Neither did you."

He kept both hands around the box, the way a man holds something he's afraid of dropping and afraid of keeping.

"The calls changed after that," he said. "Shorter. Less often. Then eleven months ago, nothing."

"And all this time you said you didn't understand why."

"I didn't."

"You had a fairly good clue."

"I thought it was the form." He looked down at it, at his own handwriting on the lid. "I thought it was what he found."

She said nothing. Somewhere below them a car door slammed, someone calling out about parking.

His eyes moved from the box to her face, slow. Not a glance. A look he made himself hold.

"You knew where I kept this."

He stopped.

"You knew exactly which box it was in."

She looked toward the stripped mattress, at the pale rectangle on the wall where a poster had hung for fifteen years and left its shadow.

He took one step closer, close enough that she could smell the coffee on his breath. "Jonathan would never have gone through my case files."

"No."

"And I never put anything of mine in with his baby things."

"No."

The word came out too quickly, and she heard it land wrong even as she said it.

He stared at her.

She could have said Jonathan must have found it somewhere else. That he might have moved it himself. That twenty years was a long time and neither of them remembered every box they had packed. The excuses lined up in her mind, obedient, ready.

Instead she looked at the form with both their names on it.

"I moved it."

He did not speak.

"I took it out of the garage and put it in here."

"When?"

"Years before he found it."

"You planted it."

"I made sure he could find it."

"You didn't tell him."

"No."

"You didn't tell me."

"You had already made your position clear."

"So you left it under his baby clothes and waited for him to stumble over it."

"He had a right to know."

"Then you should have told him."

"You would have stopped me."

"Yes."

"At least you're honest about that now."

He put the box down beside the coffee, harder than he meant to. His hand knocked lightly against one of the cups, and a thin line of foam ran down the side onto the windowsill. Neither of them reached to wipe it.

"You gave him a landmine and called it honesty."

"I gave him the truth."

"No. You gave him a form. You made him read it alone."

"He was an adult."

"He was our son."

"He still is."

Her husband looked at her for a long time, long enough that she had to stop herself from filling the silence.

"You were never supposed to find out it was me," she said.

She wished she could take it back the moment it left her mouth.

He nodded once, a small, contained motion, like something closing.

"Eleven months," he said. "I've spent eleven months believing he left because I lied to him."

"You did lie to him."

"Yes." He looked at her. "But you made sure he would ask."

Neither of them raised their voice. They never did. Outside, the sound of the movers' van pulling up drifted through the bare window, tires on gravel, a door sliding open.

He picked up his coat from the end of the stripped mattress and put it on, buttoning it slowly, deliberately, as though the buttons required all of his attention.

"Where are you going?"

He didn't answer.

"The movers come at nine," she said.

"Then you'd better finish."

"You're just leaving?"

He glanced once at the small box, then at the fax machine carton by the door, its flaps still folded shut the way they'd been for years.

"Tell them the rest can go on the curb," he said. "I'm not paying to store any of it."

He left the box beside the two untouched cups, the foam still sliding, slow, toward the edge of the sill, and went down the stairs without looking back.

She stood alone in the stripped room, the smell of Zwitsal shampoo and cold coffee mixing in the grey light.