The Billionaire’s Deadly Vow

Ayla The lawyer’s voice was calm. Too calm for what he was asking me to do. “You’ll be compensated generously. But in exchange, you will marry Mr. Graeve. No questions. No refusals. No escape clause.” I stared at the papers in front of me, each line typed neatly—legal, sterile, soulless. A contract worth millions. A lifeline for someone like me. But also a leash. “I don’t even know him,” I whispered. My voice cracked like old glass. “Why me?” The lawyer gave a smile that didn’t reach his eyes. “Mr. Graeve believes your... circumstances make you the ideal candidate.” I wanted to scream. My sister’s funeral wasn’t even two weeks ago. Her death, labeled accidental, still clung to my skin like the smell of formalin. No one investigated. No one cared. Except him. Leonhart Graeve. The billionaire who’d never spoken to me once when my sister was alive. Now, suddenly, he wanted to marry me. Why? I looked again at the bottom of the contract. One signature. Just one. And I could afford to breathe again. Rent. Medical bills. Debt collectors. The nightmares. All gone. But I’d be someone’s wife. His wife. The man whose name my sister muttered before she died. He didn’t come to the lawyer’s office. They sent a car for me instead—jet black, silent, with tinted windows that reflected nothing. Like a hearse dressed in luxury. The driver didn’t speak, didn’t smile, didn’t even glance at me. When the car finally stopped, I looked up. A mansion stood beyond the iron gates, towering and cruel. It wasn’t a house—it was a warning. Stone walls. Sharp edges. Shadows stretching like claws under the moonlight. I stepped out, my fingers curled tight around the strap of my bag. My boots clicked against the marble entrance hall—a cold, soulless rhythm echoing through the silence. Then I saw him. Leonhart Graeve. He stood like a painting brought to life—flawless, still, dangerous. His tailored black suit molded to a frame carved from tension, and his eyes—God, those eyes—were glaciers that had never known warmth. “You came,” he said, his voice calm, deep, and utterly unwelcoming. I forced myself to nod. “You gave me no choice.” He took a slow step forward. No echo. No sound. But the weight of his presence nearly stole the air from my lungs. “Everyone has a choice, Ayla. You just didn’t have any safe ones.” His words hit like glass—sharp, invisible, already cutting before I could feel it. I held onto my composure like a crumbling wall. “Why me?” He stopped just a few feet away, and for the first time, I noticed how still he was. As if his soul had stopped moving years ago. “Because your sister made a promise,” he said. “And then she died.” My heart skipped, and something icy crept down my spine. “What kind of promise?” He didn’t answer. Instead, he reached into his coat pocket and pulled out a key—old, rusted, beautiful in a terrifying way. Like it belonged to a door that should never be opened. “You want answers?” he murmured. “Then sign the contract. Be my wife. And I’ll show you what she was hiding.” I signed the contract with hands that didn’t feel like mine. Each letter of my name carved a new silence between us. Leonhart didn’t smile. Didn’t thank me. He simply took the papers, placed them into a black folder, and closed it like sealing a coffin. “The wedding is tomorrow. No guests. No vows. Just you, me, and the consequences.” I wanted to ask why. Why the rush? Why the secrecy? But something in his gaze warned me not to. Instead, he turned, and I followed him through a long corridor lit only by wall sconces. Each step echoed like footsteps in a cathedral—sacred, haunted. At the end of the hallway, he stopped beside a door. “This is your room,” he said. Not “our” room. His voice didn’t allow space for romance or comfort—only obedience. He unlocked the door, handed me the key, and added without turning his head: “There are rules. Simple ones. Follow them.” I waited, but he didn’t elaborate. So I asked, quietly, “And if I break them?” Leonhart looked back over his shoulder, one brow slightly raised. “Then you’ll discover the real reason your sister died.” My breath caught. He left before I could speak again. I stepped into the room. It was beautiful—too beautiful. A canopy bed draped in ivory. Velvet curtains. A gold-framed mirror. But on the desk sat a thin black envelope. No name. No seal. I opened it with trembling fingers. Inside was a single sheet of paper. Typed. Cold. Rules for Mrs. Graeve Do not enter the East Wing. Do not ask about Room 311. Lights out by 11 PM. Never, under any circumstance, touch the piano in the sunroom. If you hear knocking after midnight—don’t answer it. I read the last line three times. Because the room had no clock. And outside my door, something had already started knocking. I froze. The knock came again. Soft. Deliberate. Three taps, evenly spaced. I checked the door—locked. I checked the hallway light under the c***k—still on. But my room… felt colder now. No footsteps. No voices. Just that sound. Like someone—or something—wanted in, and didn’t need to rush. I grabbed the rules again. My eyes locked on the last line: If you hear knocking after midnight—don’t answer it. I backed away from the door, heart pounding so loud it drowned my breath. What happens if I do? What happens if I don’t? Seconds passed. Then minutes. Then silence. No more knocks. But the quiet was worse. It didn’t feel like peace. It felt like someone… watching. Waiting. I didn’t sleep that night. I lay on the bed, staring at the ceiling, too afraid to close my eyes. And in the silence, I kept hearing my sister’s voice—faint, broken, from the last voicemail she ever sent. “Ayla… if anything ever happens to me… don’t trust the piano. Don’t ever play it. He’ll know.” I didn’t know what it meant then. Now, I wish I never had to find out. By morning, the knock felt like a half-remembered nightmare. But the rules on the desk were real. The chill in my bones was real. I barely touched the breakfast tray outside my door. Everything looked perfect—silver cover, warm tea, soft rolls—but I didn’t trust anything in this place. Beauty here felt like bait. I stepped into the hallway, expecting silence. What I heard instead was… music. Faint. Melancholic. A piano. My blood turned cold. “Don’t trust the piano. Don’t ever play it.” My sister’s voice echoed in my head again. I followed the sound slowly, breath tight in my throat. It pulled me deeper into the mansion, past walls that seemed to lean in as I passed. Then it stopped. Right in front of a locked double door. Black wood. Gold trim. An elegant brass number: 311. Room 311. The room I was f*******n to ask about. The room no one was supposed to enter. And yet… someone had just been inside. Playing. I reached for the handle without thinking—then stopped. “That room is not for you.” Leonhart’s voice came from behind me like a blade. I turned fast, heart lurching. He stood at the end of the corridor, hands in his pockets, eyes calm—but unreadable. “I heard music,” I said. “From inside.” He didn’t look at the door. He looked at me. “There are things in this house that echo. Sounds that return even after the source is gone.” I stared at him. “What does that mean?” He stepped closer, the air around him growing heavier with each pace. When he was just an arm’s length away, he whispered: “It means that the past is not dead here, Ayla. It just sleeps behind locked doors.” Then he turned. “Come. We have a wedding to fake.”