
My Sister Married the Monster
Piper Hayes · Completed · 9.1k Words
Introduction
I woke up reborn on the night they buried him.
Standing in that funeral chamber, watching the lawyer crack open the sealed will, I discovered I could suddenly hear thoughts. My sister Vivienne's voice ripped through my head: Not marrying that butcher. No way in hell.
She lunged forward and grabbed Adrian—the refined bastard son who looked like a lawyer instead of a mobster. The same "perfect gentleman" I married in my past life.
Which left me with Dominic Callahan. The scarred heir. The Executioner.
Last time around, Vivienne married Dominic and got beaten down for years. I married Adrian and lived like a queen.
I almost laughed out loud.
Because she has no idea—this time, she's the one who grabbed the monster.
Chapter 1
Cass's POV
I wake up reborn on the night they bury my father.
In the underground chamber, two candles flicker beside his portrait. The lawyer cracks open the sealed will and starts reading out the debt: my father owed the Callahan family a life. His two daughters have to repay it through marriage.
Two men stand at the far end of the room.
One is Dominic Callahan, the eldest son—the family's "Cleaner." He's got a scar running from his brow down to his jaw. People call him the Executioner.
The other is Adrian Callahan, the bastard son. He's in a nice suit with this gentle smile plastered on his face. Looks more like a lawyer than a mobster.
Not marrying that butcher this time. No way in hell.
A voice rips through my head.
I spin toward Vivienne. Her mouth is shut, but that voice is definitely hers. My heart slams against my ribs as I stare at her—can I actually hear what people are thinking?
Adrian's the smart choice. Refined, cultured. I just need to grab him before she does.
There it is again. Everything clicks into place. I'm not just back from the dead—I can read minds now. And from what she's thinking, she's been reborn too.
The second the lawyer finishes, Vivienne jumps in. "I choose Adrian."
She walks straight to him and pulls out the ceremonial dagger from her waist. The blade cuts across her palm, blood pooling in her hand, and she doesn't even flinch as she grabs Adrian's hand. Their blood mixes. The pact seals.
The lawyer turns to me. "Then you'll marry Dominic Callahan. Miss Cassandra Hayes."
Vivienne's eyes light up with victory. Your turn to suffer now, little sister.
In my past life, Vivienne married Dominic.
That man was cold as stone. Never brought her to family business, never let her in. Every time she tried getting close, she got punished for "breaking family rules"—whippings, lockdowns, stripped of everything. Five years in, she still hadn't given him an heir, so Dominic's mother kicked her out herself and took away the Callahan name.
I married Adrian. He was perfect—thoughtful, sweet, took me to fancy parties, bought me cars and jewelry, kept me away from all the violence. Everyone said I'd gotten lucky.
Then Dominic died in a gang shootout. Adrian took over the family, and overnight I became the queen of the underworld.
Vivienne lost her mind with jealousy. Staged a car accident while I was out. Killed us both.
I take the dagger and walk over to Dominic. The blade stings when it cuts into my skin, but my hand stays steady.
When I grip his hand, I try reading his thoughts—nothing. His mind's completely silent, like there's nobody home.
But when Adrian looks at Vivienne, I catch what he's thinking.
Sweet little doe. Bet she cries pretty.
My breath stops for a second. I'm staring at that gentle face of his.
Whatever's hiding under that smile reminds me of things from my last life I'd rather forget.
The lawyer clears his throat. "Please complete the blood oath."
I snap out of it and glance at Dominic next to me. He's just waiting, expression blank, that scar looking even nastier in the candlelight.
But somehow, standing beside him feels safer. At least with him, the danger's right there on the surface.
This time, I'm changing how this ends. I'm making it out alive on my own terms.
Three days after the blood oath, we have to show up to dinner. Family rules.
It's at the Callahan family's private club.
Adrian pulls up in a silver sports car to get Vivienne, and right at the club entrance he drapes this expensive-looking fur coat over her shoulders.
He walks into the hall with her on his arm, showing her off to everyone. "This is my fiancée. I'd die for her."
Everyone eats it up.
"The second son's such a gentleman."
"He treats her so well."
Meanwhile, I'm sitting alone in whatever basic car the family sent, staring out at the neon lights.
When I walk into the hall, maybe three low-level guys bother saying hi. Dominic's nowhere to be seen.
I can hear every thought around me crystal clear.
Poor girl, marrying the Executioner. She's done.
He didn't even show up tonight. Dominic obviously doesn't give a damn about this marriage.
She'll end up in the punishment room soon enough.
Vivienne strolls over in that fur coat, sweet smile on her face.
"Look how good he is to me." She makes sure I see the jeweled buttons up close.
Then she lowers her voice, all fake concern. "So where's Mr. Dominic? Don't see him anywhere."
Last Chapters
#10 Chapter 10
Last Updated: 12/31/2025#9 Chapter 9
Last Updated: 12/31/2025#8 Chapter 8
Last Updated: 12/31/2025#7 Chapter 7
Last Updated: 12/31/2025#6 Chapter 6
Last Updated: 12/31/2025#5 Chapter 5
Last Updated: 12/31/2025#4 Chapter 4
Last Updated: 12/31/2025#3 Chapter 3
Last Updated: 12/31/2025#2 Chapter 2
Last Updated: 12/31/2025#1 Chapter 1
Last Updated: 12/31/2025
You Might Like 😍
Taste of Fate: The Vampire King's Human Mate
He reached for the back of my head and pulled me up just enough to reach my neck. When his fangs slid into me, the pain was instant, electric. I couldn’t breathe. I couldn’t think. My hands found his shoulders, clawing for something to hold. My legs kicked. Tears streamed down my cheeks.
He moaned against my throat as he drank, and the sound was devastating.
Survival Island
Zane, a powerful vampire and the island's owner, has spent centuries unable to feel desire for any woman. But when he notices Zara's intelligence, resilience, and determination to survive, she awakens something in him that no one ever has. For the first time in his vampire life, he is interested in a female, and his member is also starting to come to life. Who is this woman and why does he suddenly crave her and not just for her blood?
My Benchwarmer Boyfriend's Secret
As the team's benchwarmer, Marco practices harder than anyone, though few seems to notice. There's something about his quiet determination that draws me in, and I find myself falling for the underdog.
But when Marco's true story starts unraveling—about that first night, about who he really is, about the future he's destined for—I realize I might have gotten in way over my head.
And there's another problem: this was always meant to be temporary. His training program has an end date, and we're both fighting against a reality that seems determined to pull us apart.
When everything is on the line, how far are we willing to go for love?
The Spy Who Left
"I still can't believe she actually did it. Aria Hart, filing for divorce. Who saw that coming?"
"How long do we think it'll take before she comes crawling back?" Another voice joins the conversation.
"Three days," Victoria declares. "Five at most. She has no money, no skills, no family. Where's she going to go?"
When Aria Chen divorced billionaire Leon Hart, New York's elite sneered, betting she'd crawl back within days. She never did.
Three years later, the world is rocked when Dr. Aria Vale, CEO of a revolutionary cybersecurity empire, steps into the spotlight. The mysterious genius who built a billion-dollar company from nothing is none other than Leon's discarded wife, the woman everyone thought was just a pretty ornament.
Now, every powerful man wants the queen Leon threw away a renowned scientist seeking partnership, a financial titan proposing an empire, and an actor offering devotion. Each sees the brilliance Leon ignored.
Then Leon discovers the truth: Aria's sacrifices, her secret double life, and the daughter she's been raising without him. For the first time, the man who once took her for granted must fight for her love. But can he compete with men who valued her from the beginning?
A story of love, betrayal, and power where the king must kneel before the queen who never needed saving.
Reborn: My Biased Brothers Beg Me To Come Back
She genuinely took in Regina, the butler's daughter, only to be constantly manipulated by this cunning and manipulative woman.
Regina gradually stole the love from her three brothers.
Arabella was forced to give Regina blood transfusions time and again, her weight plummeting to a mere eighty-eight pounds.
Ultimately, under the relentless pressure from her brothers, she jumped out of a window in despair and died. Her last words were,
"What about Regina's blood transfusions?"
When she opened her eyes again, Arabella found herself reborn three years earlier—the very day Regina appeared at her doorstep crying, begging for help.
Looking at the pitiful, tearful girl before her, Arabella smiled.
No more soft-heartedness.
No more groveling.
Instead, she "kindly" arranged for Regina to move into the servants' quarters, to earn her own living through honest labor.
Faced with her brothers who sided with her, she no longer bothered to please them.
And towards her former fiancé, Theodore, whom she had once fawned over, she remained cold, distant, and indifferent.
Moreover, in this life, they would discover that her identity was far more than just the eldest daughter of the Oberon family.
Human Capture (Up North #2)
Raised in a starving settlement choked by a vast, unforgiving forest, Lara learned early that survival has a price. To keep her family alive, she became a master hunter—agile, silent, and deadly with an array of mismatched blades. But the forest has eyes, and one evening, the shadows dragged her away.
Nine months later, Lara breaks free from a concrete dungeon, only to find herself stranded in the lawless, rogue-infested wilds of Avers Land alongside four captured werewolf girls. Seeking refuge in the neighboring territory of Illyen, she expects to find a way back to her human life. Instead, she is brought face-to-face with Alpha Rowan, the terrifying, ruthless ruler of the frozen North.
One look into Lara’s eyes, and the Alpha’s world shatters. His eyes turn an absolute shade of black. The bond is undeniable. She is his fated mate.
But a human cannot survive the brutal political landscape of the North, and Rowan openly rejects the bond, dragging her onto a warship bound for a kingdom that views her as a fragile liability. Trapped between a mate who refuses to love her and a court of monsters waiting for her to break, Lara must use every hunter's instinct she possesses. Because in the realm of wolves, a human must either grow claws of her own—or perish in the snow.
A PRINCESS IN DISGUISE; BOUND TO THE ENEMY KING
I fell to my knees, the cold marble digging into my skin. I had studied for years in the flickering candlelight, memorizing every herb and poison to pass the healer's exam. I wanted freedom. I wanted to save my mother from the servant's quarters. I placed second. I thought I had won my life back.
But the King didn't give me a badge of honor. He gave me a death sentence.
"Raven Thorne shall be wed to the King of Grok," he announced, his voice echoing in the silent hall. Princess Ellie, the woman who had tormented me for years, slapped her hands over her mouth to hide her cruel laughter. She was supposed to marry the Beast. Now, I was the lamb being sent to the slaughter in her place.
They say King Liam drinks the blood of his enemies. They say he is more monster than man. And now, I have to walk into his bedroom, wearing the Princess's silk gown, and pray he doesn't tear me apart.
I looked at the King, tears streaming down my face. "I'll do it," I whispered, my voice trembling. "But my mother must be safe."
I sold my body and soul to a monster to save her. But when the carriage door opened and I finally looked into the Beast's golden eyes, I realized the terrifying truth...
He wasn't a stranger. He was the man I met in the woods.
Twin Prince Alphas Student Mate
As her 18th birthday approaches, her brothers warn her about the powerful pull she might feel toward dominant wolves. But it's not just any wolves they need to worry about—it's her teachers. Cameron and Samuel are more than just older, wiser, and off-limits; they might just be her fated mates.
While navigating complex relationships, academic pressures, and the normal trials of young adult life, an unexpected threat jeopardizes the academy. Explosions rock their world, forcing Lyla and her love interests into a chaotic swirl of heroism, heartbreak, and hard choices.
Will Lyla follow her heart and let destiny lead the way, or will the very rules that bind their world tear them apart? Amidst turmoil and taboo, Lyla must make choices that could forever change the course of her life and the lives of those she holds dear.
Discover a story where love isn't just complicated—it's forbidden, ageless, and defies all rules. In a world of supernatural beings and extraordinary stakes, will Lyla's love life be another casualty, or her saving grace?
BROKEN TRUST
Neither of them knew she was carrying his child.
Emily’s affair didn’t just end her marriage—it erased the life she thought was guaranteed. Ryan left without looking back, carrying his anger like armor and leaving Emily alone with regret she would never outrun. Three years later, fate drags them back into each other’s world, along with a little girl who has Ryan’s eyes and a truth that shatters everything he thought he knew.
Old wounds reopen, grief masquerades as rage, and love refuses to stay buried. As parenthood binds them together and the past demands accountability, Emily and Ryan must face the question neither of them is ready to answer: is broken trust the end of their story… or the beginning of a love forged through loss, forgiveness, and brutal honesty?
Accidentally Crossing the Tycoon
Four years ago, the Bailey family faced a devastating financial crisis.
Just when bankruptcy seemed inevitable, a mysterious benefactor emerged, offering salvation with one condition: a contract marriage.
Rumors swirled about this enigmatic man—whispers claimed he was hideously ugly and too ashamed to show his face, possibly harboring dark, twisted obsessions.
Without hesitation, the Baileys sacrificed me to protect their precious biological daughter, forcing me to take her place as a pawn in this cold, calculated arrangement.
Luckily, in those four years, the mysterious husband never asked to meet in person.
Now, in the final year of our arrangement, the husband I've never met is demanding we meet face to face.
But disaster struck the night before my return—drunk and disoriented, I stumbled into the wrong hotel room and ended up sleeping with the legendary financial mogul, Caspar Thornton.
What the hell am I supposed to do now?
Mated to Her Alpha Instructor
Weeks later, our new Alpha combat instructor walks in. Regis. The guy from the woods. His eyes lock on mine, and I know he recognizes me. Then the secret I've been hiding hits me like a punch: I'm pregnant.
He has an offer that binds us tighter than ever. Protection… or a cage? Whispers turn ugly, darkness closes in. Why am I the one without a wolf? Is he my salvation… or will he drag me to ruin?
Goddess Of The Underworld
When the veil between the Divine, the Living, and the Dead begins to crack, Envy is thrust beneath with a job she can’t drop: keep the worlds from bleeding together, shepherd the lost, and make ordinary into armour, breakfasts, bedtime, battle plans. Peace lasts exactly one lullaby. This is the story of an orphan pup who became a goddess by choosing her family; of four imperfect alphas learning how to be better. Steamy, fierce, and full of heart, Goddess of the Underworld is a reverse harem, found-family paranormal romance where love writes the rules and keeps three realms from falling apart.












