The envelope was addressed to me in my father’s handwriting.

My hands trembled as I opened it.

My dearest Harper,

If you are reading this, then Eleanor has likely tried to take the house, and Benjamin has activated the trust. I am sorry I could not tell you everything while I was alive. She was watching me too closely, and I needed her to believe she had control.

A tear fell onto the paper as I kept reading.

My illness is not a mystery, my brave girl. I discovered the truth a year ago.

She is poisoning me.

The letter slipped from my hands.

My father had known he was being killed.

And he had stayed long enough to protect me.

Then the front door clicked.

Someone had unlocked it.

Someone was inside the house.

Panic flooded through me. I grabbed the letter and USB drive, then snatched the heavy brass fire poker from the hearth. Slow footsteps moved through the hallway. I locked myself inside the study, went to the desk, and pushed the USB drive into my laptop.

The drive opened into organized folders by date. I clicked one from four months earlier. A black-and-white video appeared, filmed from a hidden camera in the kitchen. My father sat at the island, thin and tired, reading a newspaper. Eleanor entered in a silk robe, poured hot water into a cup, checked over her shoulder, then took a small vial from her pocket and added several drops of clear liquid into the tea. She stirred it, hid the vial, and carried the cup to my father with a kiss on his head.

I covered my mouth to stop myself from crying.

He had known.

He had taken the cup anyway.

My father had let her think she was winning so she would leave proof behind.

I opened another folder labeled Financials. It contained offshore account records, burner emails, transfers, and screenshots showing that Eleanor had been moving money from my father’s business accounts for years.

Then the study door handle rattled.

“Harper,” Eleanor called sweetly from the other side. “I know you’re in there. Be a good girl and open the door.”

I gripped the fire poker.

“Get out of my house. I’m calling the police.”

“If you do that, I’ll tell them about the business ledgers. The ones that make it look like you were stealing from your father.”

“You came back for something,” I said, forcing my voice not to shake. “What is it?”

She laughed softly.

“Your father once told me he had a rainy-day fund hidden in the masonry. I want what I earned. Open the door, or I’ll get a crowbar.”

I looked at the laptop screen, where the video was paused on Eleanor putting poison into the tea.

I was done hiding.

I shut the laptop, walked to the door, and unlocked it.

Eleanor stood there smiling, until she saw the fire poker in my hand.

“You were right,” I said coldly. “Dad did hide something in the masonry. But it wasn’t money.”

I held up the USB drive.

“It was you.”

Her eyes locked onto it. For one brief second, the elegant widow vanished, and a trapped predator stood in her place.

“What is that?”

“A digital archive. Financial records. Burner emails. Offshore accounts.”

I stepped closer.

“And time-stamped video of you putting digitalis into my father’s tea.”

Her face turned pale.

“You’re bluffing. He didn’t know. He was confused.”

“He knew exactly what you were doing. He had private blood tests. Then he installed cameras and let you expose yourself.”

She lunged for the drive, but I stepped away, raising the fire poker just enough to stop her.

“You have no idea what this will do,” she hissed. “The scandal will destroy his reputation. You’ll never know peace.”

“His reputation?” I laughed bitterly. “You murdered my father.”