I was raising my champagne glass when our maid burst into the ballroom, pale and shaking. “Don’t eat the cake!” she screamed. “She poisoned it!” Every head turned toward my billionaire father’s fiancée, whose perfect smile instantly vanished. She pointed at the maid. “She’s lying!” I quietly set down my fork and pulled out my phone. “Funny,” I said. “Because I recorded what you put in it.” And that was only the beginning of my revenge.

By 3:00 AM, the estate was finally quiet.

The police cruisers had driven away, their red and blue lights flashing silently down the long, tree-lined driveway of the Ashford Manor. Celeste Vaughn was in a holding cell at the county precinct, charged with attempted murder, grand larceny, and identity fraud, with federal agents preparing warrants for her past crimes in Florida and Illinois.

I sat in my father’s private study on the second floor, a glass of dark amber scotch sitting untouched on the mahogany desk beside me.

My father sat in his leather armchair near the unlit fireplace, staring blankly at the portrait of my mother that hung above the mantel. My mother had passed away nine years ago from cancer, leaving my father with a vast financial empire and a deep, aching void that he had never known how to fill.

"I was so blind, Evie," my father whispered, his voice dry and hollow. "She was so kind to me... she listened to me talk about your mother... she helped me select the new art pieces for the foundation..."

"She was a professional, Dad," I said gently, sitting on the ottoman beside his chair. "She spent six months researching your life, your habits, your grief, and your weaknesses before she ever set foot in the same room as you."

"When did you know?" he asked, looking at me with tired, bloodshot eyes. "When did you realize what she was?"

"The second week she moved in," I replied. "She asked me if I ever thought about moving to London permanently to run the foundation’s international office. She offered to double my salary out of her own prospective allowance. She wanted me six thousand miles away, Dad. She knew I was the only one who inspected the foundation's monthly audit ledgers."

My father buried his face in his hands, a deep, shuddering breath tearing through his chest. "And I called you jealous... I told you to stop acting like a bitter child..."

"It doesn't matter now," I told him, resting my hand over his knee. "What matters now is making sure we clean out every trace of her from this house."

I stood up, holding a flashlight I had taken from the security room downstairs.

"Where are you going?" my father asked.

"To your master suite," I said. "Maria said she saw Celeste searching through your medical cabinet two days ago. I want to know exactly what she was putting into your daily vitamins."

My father followed me down the long, carpeted hallway to the master wing.

The master bathroom was a massive room covered in white Italian marble, featuring a jacuzzi tub, a glass rainfall shower, and a built-in cedar medical cabinet behind the mirror.

I opened the mirror cabinet. Inside stood row upon row of my father’s daily health supplements—multivitamins, omega-3 oils, coenzyme Q10, and his prescribed low-dose blood pressure medication.

I pulled on a pair of black nitrile gloves from my pocket.

I picked up the bottle of blood pressure pills—a standard prescription filled by our family pharmacy three weeks ago. I tipped three pills out onto a clean paper towel on the counter.

They were standard white, round tablets stamped with the manufacturer’s code BP-50.

I reached into my pocket, pulling out a small jeweler’s loupe, and pressed it against my right eye. I picked up one of the pills and brought it close to the light.

My heart sank into my stomach.

"Evie?" my father asked, standing at the bathroom doorway. "What is it?"

"Look at the seam," I whispered, handing him the loupe.

My father held the loupe to his eye, looking at the tiny white tablet.

Around the edge of the pill was a microscopic, jagged seam—a line where the original capsule had been carefully split open, filled with a white powder, and re-sealed using a fine medical adhesive.

"She wasn't just planning to poison you tonight, Dad," I said, my voice cold as ice. "She’s been micro-dosing your daily blood pressure pills for at least two weeks. Slowly weakening your heart muscle so that when the final dose hit your system tonight, the coroner would assume your pre-existing condition simply failed."

My father stared at the pill in his palm, his face going completely gray.

"If Maria hadn't seen her in the kitchen tonight..." my father whispered, his voice trembling violently, "if you hadn't recorded her..."

"You would have been dead by midnight," I said quietly.