The slap cracked across the marble foyer so sharply that the pianist in the ballroom stopped playing.

For one stunned second, nobody moved.

Nico Alfieri sat on the floor beside his overturned wheelchair, one palm pressed against the cold marble, the other gripping the edge of a console table to keep himself upright. He was thirty-four, eight months removed from the crash that had taken the use of his legs, and still dressed in the white shirt and black trousers he had worn through three exhausting hours of an engagement party thrown in his own home.

Thirty guests stood within sight of him.

Three men had spent half their lives calling him boss.

Two security guards were close enough to hear his breathing.

Not one stepped forward.

Above him stood Camille Ashcroft, the woman he was supposed to marry in seventeen days.

Her jeweled hand was already rising again.

“You embarrassed me,” she hissed.

Nico looked up at her.

The side of his face burned, but his voice remained quiet.

“Put your hand down.”

Camille laughed, the sound thin and brittle beneath the chandelier light.

“What are you going to do if I don’t?”

A medication tray struck the floor.

The crash of plastic and metal broke the paralysis.

Adeline Marsh crossed the foyer before anyone understood she had moved. A sealed syringe spun across the marble. A paper cup rolled beneath a chair. Her brown hair had come loose from its knot after another fourteen-hour day, and the faded blue of her scrubs looked painfully ordinary against the black tuxedos and evening gowns surrounding her.

She caught Camille's wrist before the second blow could land.

Her fingers did not tremble.

“You will not touch him again.”

Camille stared at her as though the woman holding her wrist had somehow stepped out of a painting.

“Take your hand off me.”

“No.”

“You work for him.”

“I care for him.”

“You work for this house because we allow you to.”

Adeline's jaw tightened.

“And right now, I'm the only person in this house acting like he's human.”

The room changed.

Nico looked at her.

Not because she had defended him. He had been defended before, usually by men carrying guns or lawyers carrying briefcases.

It was the word.

Human.

For eight months, people had called him patient, heir, boss, liability, victim, responsibility. They spoke around him as if his wheelchair had swallowed the rest of him.

Adeline had looked directly at him.

A man.

Camille tore her wrist free.

“You have no idea what you're interfering with.”

Adeline watched her walk away.

She did.

Three months earlier, Adeline's life had been measured in unpaid bills and hospital appointments.

Her apartment in Cicero was so small that the kitchen table served as a desk, dining table, medication station, and homework area. Two pieces of paper lay beside a cold cup of coffee that afternoon.

One was another rejection from a financial assistance program.

The other was an appointment card for her seven-year-old brother, Wes.

Two surgery dates had already been crossed out.

Wes had been born with a complicated heart defect. There was a treatment. There was a surgeon. There was a realistic chance that he could grow up and complain about homework, lose his keys, fall in love, and become every ordinary kind of difficult brother Adeline could imagine.

There was only one obstacle.

Money.

Wes sat beside the radiator folding a paper crane from a grocery advertisement.

“You're doing it wrong,” he said.

Adeline looked up.

“Doing what wrong?”

“Worrying.”

She almost smiled. “There's a correct way?”

“Yeah.” He folded one wing. “You're supposed to worry after dinner. Before dinner makes you mean.”

The laugh escaped her before she could stop it.

Then the phone rang.

The caller represented a private legal office. A wealthy family north of Chicago needed a live-in nurse for a thirty-four-year-old man recovering from a spinal injury.

When he named the salary, Adeline thought she had misheard him.

When he mentioned immediate dependent medical coverage, she stopped breathing.

Then came the question experience had taught her never to ignore.

“Why is the position open?”

A pause.

“The household has had difficulty retaining nurses.”

“How many?”

Another pause.

“Three since June.”

Adeline looked at Wes.

“When do I start?”

The Alfieri estate rose behind iron gates near the lake, hidden among trees and high stone walls. It was the sort of house that seemed less built than inherited from another century.

Edna Hollis, the sixty-three-year-old housekeeper, met Adeline at the service entrance.

“You'll learn the rules,” Edna said.

“Are they written down?”

“No.”

That should have been warning enough.

Nico's introduction was brief.

He sat beside a library window in a custom wheelchair, broad-shouldered despite months of rehabilitation. His dark hair was pushed back from a face made sharper by pain.

He studied Adeline.

“You're the fourth nurse.”

“So I've heard.”

“Don't try to make me like you.”

“I wasn't planning to.”

Something flickered in his eyes.

“I'll manage your medication, coordinate with physical therapy, monitor your symptoms, assist when necessary, and stay out of whatever isn't my business.”

“Good.”

Their arrangement began there.

Nico hated assistance.

He hated transfer boards, shower chairs, strangers reaching behind his wheelchair, and the pity that entered people's voices whenever they spoke to him.

Adeline gave him none.

“Again,” she said during morning exercises.

His hands tightened around the parallel bars.

“I'm done.”

“No.”

His eyes cut toward her.

“I said I'm done.”

“And I heard you.”

“Then why are you still standing there?”

“Because you're tired, not finished.”

He stared at her.

For a moment, something dangerous passed between them.

Then Nico pushed himself forward.

One movement.

Another.

His breath came hard through clenched teeth.

Adeline watched his shoulders, not his legs.

“Good.”

“Don't praise me.”

“Fine. That was terrible.”

He almost smiled.

It became their language.

He was difficult.

She was stubborn.

He pushed.

She refused to let him disappear inside himself.

And slowly, almost imperceptibly, the house changed around them.

Nico began eating downstairs instead of alone in his room. He started asking about Wes. He remembered that Adeline took her coffee black. Once, after a particularly brutal therapy session, she found a paper bag on the kitchen counter.

Inside was a new stethoscope.

“No,” she said.

“You need one.”

“I have one.”

“It squeaks.”

She looked at him.

“You listened to my stethoscope?”

“You leave it everywhere.”

A pause.

“Thank you.”

He nodded as though gratitude embarrassed him.

Neither of them mentioned that he had remembered the exact model she had once admired in a medical supply catalog.

But there were other things Adeline noticed.

At night, someone entered Nico's room after she had finished her shift.

At first she assumed it was security.

Then she noticed something strange about his medication.

A bottle prescribed for nerve pain was supposed to contain pale tablets.

Several pills inside were darker.

She checked the pharmacy records.

The prescription was legitimate.

The bottle was legitimate.

The contents were not.

Adeline didn't panic.

She photographed the pills, sealed two in a specimen bag, and placed them inside an old shoe in her closet.

Two nights later, she heard footsteps outside Nico's bedroom.