The envelope contained only one sentence.
Stop before you become another person they silence.
There was no signature.
No explanation.
I read it twice before taking it downstairs.
Vincent was waiting in the foyer with his security chief.
“What happened?”
I handed him the envelope.
He read it.
His expression changed.
“Who found this?”
“I did.”
“Where?”
“Outside Lucas's bedroom.”
The security chief immediately called his team.
Vincent looked at me.
“From now on, you don't walk anywhere alone.”
“I wasn't planning to.”
His eyes remained on the paper.
“Someone entered a secured corridor.”
“Yes.”
“And left this for you.”
“Yes.”
He folded the envelope carefully.
“Then whoever is doing this wants us frightened.”
“Maybe.”
“Are you?”
I looked at the staircase.
“Yes.”
He seemed surprised by the answer.
“I don't think pretending otherwise helps.”
He nodded.
Neither of us mentioned the possibility that the person who had warned me might also be the person trying to manipulate us.
We left for Manhattan shortly afterward.
The boys were transferred to a private medical facility under security while Vincent and I went to the bank.
Margaret Sloan met us there.
She was in her sixties, composed, sharply dressed, and carried herself like someone who had spent years refusing to be intimidated by powerful men.
When she saw Vincent, she did not offer comfort.
She simply handed him a small envelope.
“Isabella left this with me.”
Vincent stared at it.
“You knew she was afraid.”
“Yes.”
“You knew she suspected Harrison.”
“Yes.”
“You knew she thought someone was harming the boys.”
Margaret's expression softened.
“She was convinced.”
“And you didn't tell me.”
“She specifically asked me not to.”
“Why?”
“Because she believed someone close to you was watching your movements.”
Vincent looked away.
“Did she name anyone?”
“No.”
“Did she trust me?”
Margaret took a breath.
“She loved you.”
“That wasn't my question.”
“I know.”
She looked directly at him.
“She also believed you were so focused on your businesses that you could be manipulated without realizing it.”
The words landed hard.
Vincent accepted them without argument.
Margaret unlocked the safe-deposit box.
Inside were three objects.
A flash drive.
A photograph.
And a handwritten letter.
Vincent picked up the letter first.
His hands were steady.
Only his breathing betrayed him.
He unfolded it.
Isabella had written that she believed someone was deliberately making the boys ill.
She described irregularities in their medical records.
She mentioned Harrison's access to prescriptions, household medical information, and the boys' test results.
Then she described a financial connection.
A company associated with Harrison had received almost eight hundred thousand dollars through one of Vincent's business subsidiaries.
Vincent stopped reading.
“I don't know this company.”
I took the paper from him.
“You should.”
He looked at me.
“Why?”
“Because it belonged to you.”
He read the next page.
The company had been acquired by Moretti Holdings three years earlier and sold eighteen months later.
During the period when Vincent owned it, payments had been made to Harrison's consulting firm.
Vincent's eyes hardened.
“Who authorized them?”
“The flash drive should tell us.”
We connected it to a secure computer.
A list of transactions appeared.
One name repeated.
Richard Cole.
Vincent's chief financial officer.
His closest financial adviser.
Twelve years working beside him.
A man who had attended Isabella's funeral.
A man who knew which companies Vincent owned.
A man who knew how money moved between them.
A man who had access to information about the estate.
Vincent stared at the screen.
“No.”
I said nothing.
“He wouldn't.”
“Why not?”
“Because Richard is family.”
“Not legally.”
“That's not what I mean.”
He closed his eyes.
“Richard helped me build this.”
“That doesn't mean he couldn't betray you.”
Vincent looked at the photograph from the box.
“I've trusted him with everything.”
“That may be why Isabella was afraid.”
We returned to Connecticut that evening.
Richard was already inside Vincent's office.
He stood near the window with his coat still on.
“Where have you been?”
Vincent closed the door behind us.
“Investigating.”
Richard smiled.
“About the boys?”
“Yes.”
“I heard there was some problem with the ventilation.”
Vincent stared at him.
“Of course you heard.”
Richard's smile disappeared.
“What does that mean?”
Vincent placed a photograph of the metal canister on the desk.
“Recognize it?”
Richard looked down.
“No.”
“Look again.”
“I've never seen it.”
“Try another answer.”
Richard's face tightened.
“I don't understand.”
“Who installed the auxiliary ventilation?”
“I don't know.”
“Who approved the payments to Harrison's consulting company?”
Richard sighed.
“Vincent, I handle thousands of transactions.”
“Then this one should be easy to remember.”
Richard looked at me.
“Who is she?”
“My nanny.”
His expression changed.
“You're questioning me because of a nanny?”
“No.”
Vincent leaned forward.
“I'm questioning you because my sons are sick.”
Richard stepped backward.
“You're making a mistake.”
“Maybe.”
Vincent picked up the flash drive.
“But I'm making it carefully.”
Richard suddenly lunged.
Security moved instantly.
Two guards caught him before he reached the desk.
“Search him.”
A guard removed a small USB device from Richard's pocket.
Richard stopped struggling.
For the first time, genuine fear crossed his face.
Vincent looked at him.
“What is that?”
Richard said nothing.
The security chief connected the device to a protected computer.
Files began appearing.
Medical records.
Financial statements.
Photographs.
Household schedules.
Notes about the boys.
Medication histories.
Appointments.
The amount of information was overwhelming.
Someone had been watching the family for years.
Then a folder appeared.
ISABELLA.
Vincent stopped breathing for a moment.
He opened it.
Dozens of files appeared.
Audio recordings.
Photographs.
Video clips.
One was dated three days before Isabella's accident.
Vincent clicked it.
The screen showed Isabella sitting in a dim room.
She looked exhausted.
She looked frightened.
She looked directly into the camera.
“If you're watching this, something has happened to me.”
Vincent's hand moved toward the screen.
Isabella continued.
“I need you to understand what I couldn't make you believe.”
She paused.
“Harrison isn't simply treating the boys.”
Vincent's face went rigid.
“He's studying them.”
The room became silent.
Isabella explained that the children's symptoms followed exposure to something in the house.
She had found evidence connected to the ventilation system.
She had confronted Harrison.
He told her she was imagining things.
Then she looked toward the camera.
“Richard is helping him.”
Richard stopped struggling.
Vincent slowly turned toward him.
The video continued.
“If something happens to me, don't trust either of them.”
Isabella's voice became quieter.
“And don't let them take the boys away from the house.”
The screen went black.
No one moved.
Vincent stared at Richard.
“Why?”
Richard's face collapsed.
“I didn't know it would go this far.”
“You poisoned my sons.”
“No.”
“You installed the system.”
“I followed instructions.”
“Whose?”
Richard looked toward the floor.
Vincent stepped closer.
“Whose instructions?”
Richard said nothing.
Vincent's voice became lower.
“Who told you?”
“Harrison.”
The word barely escaped him.
But it was enough.
The security chief immediately called the police.
Richard began crying.
“I never touched the boys.”
“You helped someone who did.”
“I thought Harrison was treating them.”
“You knew about the system.”
“I knew there was equipment.”
“You knew.”
Richard covered his face.
“I was told it was part of a medical study.”
Vincent stared at him.
“A medical study?”
“He said the boys were valuable subjects.”
The sentence made Vincent recoil.
I felt sick.
“Why my sons?” he asked.
Richard shook his head.
“I don't know.”
“Why?”
“I don't know.”
“Then what do you know?”
Richard looked up.
“Harrison said their condition was rare.”
“What condition?”
“There wasn't one.”
Vincent's face changed.
Richard continued.
“He wanted to observe how long exposure took before the symptoms became obvious.”
The room fell silent.
For eighteen months, the boys had not been receiving mysterious treatment for an unknown illness.
They had been part of an experiment.
Their weakness had been the result being measured.
Their headaches had been data.
Their weight loss had been data.
Their hospital visits had been data.
Every time Vincent paid another specialist, Harrison gained more information.
And Vincent had unknowingly funded the search for the very disease that someone had created.
Then Vincent remembered Isabella.
“What happened to my wife?”
Richard closed his eyes.
“I don't know.”
“You know enough.”
“Harrison told me the accident would look natural.”
My stomach tightened.
Vincent stepped forward.
“Who caused it?”
Richard shook his head.
“I wasn't there.”
“Who was?”
“I don't know.”
“You're lying.”
“No.”
Richard looked at him.
“I swear.”
Vincent's voice broke.
“Did Harrison kill her?”
“I don't know.”
The police arrived minutes later.
Richard was taken into custody.
Dr. Blake's location was traced soon afterward.
But before the authorities could reach him, Vincent received a message.
One line.
You were always too late.
He showed it to me.
I read it twice.
Then I noticed the time.
The message had been sent from a number registered to a phone inside the private medical facility where Lucas and Leo were staying.
Vincent went completely still.
“The boys.”
We ran.
Click Here to continue read next: PART5: The Race Back to the Medical Facility Uncovers a Second Betrayal, and Vincent Realizes the Threat Has Been Inside His Family All Along
The New Nanny Notices a Strange Detail in the Mansion That Every Specialist Before Her Somehow Managed to Miss
Part 4 of 8
