MAFIA BOSS WAS SIGNING A MILLION-DOLLAR CONTRACT WHEN HIS MAID'S THREE-YEAR-OLD DAUGHTER WALKED IN AND CALLED HIS FIANCÉE A THIEF—BUT WHAT HE FOUND IN HIS SECRET DRAWER MADE HIS BLOOD RUN COLD.

At seven the next morning, Isabella Costa found a note beneath her bedroom door. There was no signature, only four words written in black ink.

THE CHILD SAW YOU.

She read the sentence three times before she could make herself breathe normally. Through the east-wing windows, the grounds were bright with weak autumn sunshine. Two gardeners moved beneath the poplars. A maid pushed a linen cart down the corridor, humming to herself. Nothing in the ordinary sounds of the household suggested danger.

Isabella knew better.

She locked the door, opened her jewelry case, and removed the gold necklace with the letter I. Beneath its velvet lining was a folded photograph of a young man standing on a Boston pier. His hair was dark and windblown, his smile crooked.

Her brother Matteo was twenty-four. He was also missing.

Three weeks earlier, he had left her a message that began, "If Dad says I'm traveling, don't believe him." The call disconnected before she could answer. Salvatore Costa told her Matteo had gone to Portugal to clear his head. Victor Serno assured her the boy was being difficult, as young men often were.

Then an envelope arrived containing Matteo's watch and a single bloodstained cuff.

The same evening Victor visited her in the garden. He said the Moretti seal needed to be copied. He said Matteo would come home alive if she obeyed.

Isabella had spent her whole life learning how to smile through fear. She had not known she would someday have to use that skill to save her brother.

A knock sounded.

"Isabella?" Dante called.

She put the photograph away. "One moment."

When she opened the door, Dante stood alone. He wore a charcoal jacket without a tie. There was a faint scratch on his wrist, the kind left by a rose thorn.

"Walk with me," he said.

"Where?"

"Outside. Somewhere nobody has paid to overhear us."

She stared at him. He knew. Perhaps he knew everything.

They descended the main staircase past the portrait of Lorenzo Moretti and went out through the conservatory. The air smelled of wet stone. Isabella pulled her coat tighter as they crossed toward the rose garden.

Dante stopped beside the sundial. "Tell me about Matteo."

It was not the question she expected. Her mouth opened, then closed.

"My brother is in Europe."

"Is that what you've been told, or what you know?"

"Why are you asking?"

"Because you haven't mentioned him in weeks, although the two of you used to speak every Sunday. Because your father's men have been making private visits to Victor. And because you took the family seal out of my desk."

Isabella looked away.

He waited. He did not threaten her. Somehow that made it worse.

"If I answer you," she whispered, "will you promise he doesn't die?"

"I won't promise what I can't control. I'll promise not to abandon him because the truth is inconvenient."

A tear slipped down her cheek, surprising them both. She wiped it away angrily. For eleven months Dante had never seen her cry; now the first tears came not for their engagement but for a younger brother she had failed to protect.

"Victor said there was a legal problem with the harbor contracts," she began. "He needed an impression of the seal. I knew it was wrong. I did it anyway."

"What did you put it on?"

"Waxed tracing paper. He told me where to find the drawer."

"How?"

"He said Lorenzo showed him when he was dying."

Dante remembered his father in the final minutes of his life, his mouth moving soundlessly as Dante bent over him. Victor had been there, one hand on Lorenzo's shoulder, telling everyone to give the old man space.

"Did Victor give you anything in return?" Dante asked.

"A photograph of Matteo taken last Tuesday. He was holding a newspaper. His left hand was bruised."

"Do you still have it?"

She shook her head. "Victor took it back."

Dante looked toward the house. "Why didn't you tell me?"

"Because the last man who threatened Matteo said that telling you would kill him faster. And because my father taught me you were as dangerous as he was."

"He wasn't wrong about the second part."

"I know."

For a moment neither spoke. The truth of their engagement stood between them: a political alliance decorated with flowers, dinners, and the occasional quiet gesture that almost passed for affection.

"I didn't want to marry you," Isabella admitted. "Not at first. Then I thought perhaps we could be friends. You never lied to me about what your life was."

"I've kept plenty from you."

"Business secrets. Not cruelty for pleasure. I learned there was a difference."

Dante bent to remove a broken branch from the yellow rosebush. "Tell me everything Victor said. Leave nothing out, especially the things you think don't matter."

Isabella told him about the envelope, the cuff, the tracing paper, and a telephone call from a warehouse number she had memorized. Victor had instructed her to deliver the copied impression to a courier at a hotel in Newark, but he changed the plan after learning the original seal had been moved. She had been supposed to search the drawer for a second object: a narrow silver key with a triangular notch.

"I didn't find it," she said. "Victor got angry."

Dante had never kept a silver key in the drawer. Someone had mistaken the hiding place, or someone had wanted Isabella to take the blame for a theft they planned to commit themselves.

"Did he say what it opened?"

"A place your brother used to visit. That's all."

At Marco's name, Dante felt the familiar pressure beneath his ribs. "What else?"

She swallowed. "He said Marco was a foolish man who thought one good deed could erase a family name."

Dante heard his brother's laugh again, young and alive among the roses. "Victor said that?"

"Yes."

"When?"

"Yesterday. He was angry after I told him I couldn't get the key."

They returned to the house by separate doors. Dante made no promises about their engagement. Isabella did not ask for them. But before they parted, he said, "The child is not to blame for your fear. I expect you to remember that."

"I know," Isabella whispered. "I'd never hurt Sophia."

"Then help me keep her safe."

Dante spent the next hour in his father's old dressing room, a space left almost unchanged since Lorenzo's death. Hunting jackets hung in cedar-lined closets. A dusty row of leather boots stood beneath the window. On a shelf were three silver cigarette cases, none of which matched Isabella's description of the key.

Under a box of cufflinks, however, Dante found an envelope addressed to Marco in Victor's handwriting. Inside was a receipt for repairs to a storage building near Pier Nine, dated two months before Marco's murder. Across the bottom Marco had written: Ask why the workers aren't getting paid.

It was not proof of anything. It was a reason to keep looking.

At lunchtime, Elena found a stranger in the staff corridor. He wore an electrician's uniform and carried an open tool bag, but his shoes were polished black leather, unsuited to work in a wet basement.

"Can I help you?" she asked.

"Checking the alarms, ma'am."

"Carlo hasn't mentioned maintenance."

The man smiled. "Last-minute request."

Elena felt Sophia's small hand close around her skirt. The child had wandered back from the pantry carrying Mr. Whiskers.

"Are you the funny walking man?" Sophia asked.

The stranger's smile faltered. "No, sweetheart."

"My mama says we don't talk to strangers," Sophia announced, then stepped behind Elena.

Elena moved sideways, blocking the corridor. "I'll call security."

The man made no effort to stop her, but as she reached for the wall phone, he turned and walked toward the servants' exit. By the time Carlo arrived, the door was standing open and the man was gone.

Carlo inspected the tool bag the visitor had abandoned. Beneath a voltage tester lay a cheap phone, a folded floor plan of the mansion, and a photograph of Sophia leaving daycare.

Elena stared at the photograph until the edges blurred. "Why would anyone take a picture of my daughter?"

Carlo put the image face down. "I don't know."

"Don't lie to me. Not when it's about her."

For the first time since meeting him, Elena saw shame on the security chief's face. He said, "I should have caught him before he reached this hallway."

Dante arrived minutes later. He listened to the account and then took the floor plan. A red circle marked the staff wing, not his office. The line beside it read TWO PERSONS, NO ESCORT.

"Move them," he told Carlo.

Elena drew Sophia closer. "Where?"

"To the old guest cottage. Two guards, both men I choose personally. You'll have a key, a telephone, and a car. You can leave if you want."

"With Sophia?"

"Of course."

Elena looked at him for a long moment. "Most employers would fire me for this."

"Most employers haven't allowed a man with a floor plan to walk through their kitchen."

He glanced at Sophia, who was making her stuffed cat wave hello to a frightened maid. "I owe you both better than that."

That evening, Dante received a message from an unknown number. It contained a picture of Matteo Costa seated in a bare room, holding up a newspaper from the previous day. Beneath the image was a sentence.

IF YOU WANT THE BOY ALIVE, SIGN THE PIER NINE TRANSFER BEFORE FRIDAY.

Dante passed the phone to Isabella without speaking. She covered her mouth with both hands.

A second message appeared while they watched.

AND KEEP THE LITTLE GIRL QUIET.

At last Dante understood what Sophia's accusation had cost. A secret someone believed was safe had become exposed. The men behind it were no longer merely stealing documents. They were prepared to use a child to retrieve their advantage.

He called Carlo and gave him one order: "Bring me every record Marco left behind. I don't care how ugly the truth is."