Underworld Fanfiction Crossover

Emily, a young adult trying to find her meaning to life, is put into a dilemma when she's killed in an attempt to save the one she loves . She's given another shot at life at the cost of her beloved friend, becoming the guardian of the gate between the Vampire and the human realm. In her plight to become human again, she must complete the last guardian's mission to close the gates of the underworld and lock all the wandering vampires back in. Will she be able to accomplish her mission when her heart begins to beat for the dethroned King of vampires who plans to stop her from sealing the gates of the realm?

Sia woke up from a coma after seven months, only to discover that she was the only sister of a Mafia overlord. Due to amnesia, she didn't recall all of her memories, but one thing she couldn't forget was how her father was murdered on her birthday by their enemies. This memory plagued her with nightmares every night, terrifying her. Driven by the desire for revenge, she believed that avenging her father's death might free her from the darkness that engulfed her. Thus, she embarked on a quest for vengeance. However, she was unaware that the four men she killed were not the ones responsible for her father's murder; they were merely pawns. In the underworld, everyone knew the name of the true culprit, but no one knew what he looked like, making it extremely difficult for Sia to find someone who existed only by name. One day, however, he appeared in her apartment like a ghost. He looked at her and said, "Aren't you looking for me? I'm here now, Little vermin.’ ‘Who the hell are you?’ With a sly smirk lingering on his face, he answered. ‘I’m your sweet nightmare, Little vermin. I give both sweet and lethal nightmares your experience every night.’

Beneath the charming harbor town of New Haven lies a world ruled by kingpins—where empires rise and fall, love is a dangerous game, and betrayal exists in every corner.- Tag Cassandra Reed is no stranger to survival. Between being an underground deliveryman, waitress by day, and stripping at The Velvet Mirage by night, her life is a delicate balance of secrets and sacrifices—all for the sake of her mother’s medical bills. But one fateful night, everything changes. A mysterious man ends up dead in her arms, and Cassandra becomes the prime suspect in a murder that pulls her into the dark, dangerous underworld of New Haven’s mafia elite. Alexander Wolfe is cold, calculating, and determined to avenge his family’s downfall. Cassandra might hold the key to uncovering the conspiracy that threatens his empire, but her defiance and vulnerability stir something he thought he’d buried long ago. As the walls between captor and captive crumble, a deadly game of trust, betrayal, and passion begins. Together, they unravel a web of secrets tied to a stolen ledger, corrupt politicians, and a rival mafia boss with a thirst for domination. But as enemies close in, Cassandra must make an impossible choice: sacrifice her freedom to protect the man who’s captured her heart or risk everything to take down the woman who destroyed her life. In this world, love is dangerous, loyalty is deadly, and power comes at a price. Can two fractured hearts survive a war built on vendetta? Or will their love be consumed by the shadows of desire? Perfect for fans of dark romance and thrilling mafia story, His Shadowed Desires delivers unexpected twists, unforgettable characters, and a love story forged in the least likely of places. Prepare to be captivated until the very last page.

Blurb: "You're going to operate on me, Dottoressa Bianchi. And you're going to make damn sure I live." Damiano Valentini'e voice is low, commanding and terrifying. But as Dr. Alessia Bianchi stands over the infamous Mafia King, her scalpel trembling, she realizes this is no ordinary patient. Damiano is cursed. Bound by an ancient blood pact that keeps him alive, but in torment, barely alive. Every life he takes feeds his power and fractures his soul. A soul now hanging by a thread. Alessia's world is torn apart when her twin brother vanishes during a secret investigation into the deadly Moretti family. Her only lead? Damiano, the man whispered about in both criminal and supernatural circles. She should run. She should fear him. But instead, she's drawn to him... To his shadows, his secrets, and the darkness behind those sliver eyes. As the delve into the Mafia underworld to uncover her brother's fate, Damiano and Alessia must face bloodthirsty enemies, unravel a deadly curse, and resist a magnetic passion that threatens to burn them both. He is the monster she should hate. She is the light he never thought he'd deserve. But together, they maybe the only ones who can survive the storm.

Milo was born as a curse. an Omega male, A disgrace and never heard of. Desperate to get the acknowledgement of his family, He is Disguised as his powerful twin sister, and bundled as a pet to the most feared man in the underworld: the Mafian King. Bound in chains and stripped of his freedom, Milo is prepared to endure whatever fate that is waiting for him. But when his disguise is shattered, and he was caught, the lie that was meant to save him turns into a death sentence. The Mafian King does not take kindly to deception. Yet, instead of killing him, he does something far worse. He claims him. “From now on, you are mine. I own every inch of your body as my little pet” Milo must learn to survive, in this world fueled with cruelty and betrayal. not just as a prisoner, but as one thing no man in this kingdom has ever dared to be. A pet.

“He pressed me to the wall with one hand tight around my throat, the other sliding beneath the thin silk clinging to my skin. I should’ve been begging for help. Instead, my knees went weak when he leaned in, his mouth hot against my ear. ‘Does it hurt, darling?’ he whispered. I shook my head, even as his fingers left bruises. ‘Good. I like it when you take it.’ God, I hated him. God, I wanted him to never let go.” A DARK, EROTIC TALE OF OBSESSION, HUMILIATION, AND HUNGER. They called him the Devil, a sadist with a crooked smile and hands built for breaking men. In the underworld’s most perverse auction, Luca Ruelle is nothing but trembling prey, sold for a price no soul should fetch. Silk-wrapped, bare, choking on shame and smoke, he should be praying for rescue. But Kain Astor doesn’t rescue. He claims, corrupts, and devours. He teaches Luca how it feels to be owned. How pain can bloom where fear lives. How pleasure is just another kind of cruelty. Every command is a dare, every punishment a promise. Under Kain’s hands, Luca learns the exquisite agony of surrender, and the terror of how badly he needs it. He should be fighting for his life. Instead, he’s sinking to his knees, eyes glazed, lips parted, whispering the one word that seals his fate— “Please.”

In the gritty heart of Duskville, where shadows hide the crimes no one wants to see, Detective Jackson Reyes works like a ghost—unflinching, relentless, and alone. Scarred by a childhood spent watching his mother suffer at the hands of a cruel man, Reyes learned early that justice doesn’t come easily. So he became it. When Lena, a young woman trapped in a world of coercion and violence, walks into his station and tells the truth no one else will hear, something shifts. As Reyes digs deeper into the criminal underworld controlled by Riko and his men, Lena becomes more than a witness—she becomes a reason. A reason to keep fighting. A reason to believe healing might be possible, even for someone like him. ______ Content Warning: This story contains themes and depictions of sxual assult, r*pe, non-consensual acts, gr*oming, sx traffcking, and dr*g use. Reader discretion is strongly advised. These topics are part of the narrative and may be distressing or triggering for some individuals. Please take care while reading.

Aria Jones has always been a pawn—trapped under her ruthless father’s control and forced into an arranged marriage with a man she barely knows. But on the day of her wedding, everything shatters. A daring escape with the infamous Nikolai Petrov—dangerous, untouchable, and heir to a rival empire—thrusts her into a deadly underworld where love is a weakness and trust can get you killed. Now hunted by her vengeful fiancéand a jealous rival; and caught in a ruthless war between cartels, Aria must do more than just survive—she must transform. With enemies circling and a past that refuses to let go, she has two choices: return to the gilded cage she knows or embrace the dark power that Nikolai sees within her. But as their passion ignites, so does a war that could destroy them both. In a world where betrayal is inevitable, will Aria and Nikolai be each other’s salvation—or their downfall?

They called her a burden. His fiancè called her a nuisance. Cecelia Morrow was a pawn of her family, sacrificed for their wealth and power. When she caught her fiancé in bed with her sister, the day before their wedding, her desperate plea to escape was met with disapproval. Forced to choose between a loveless marriage and a life of hate and misery, she made a desperate call to her childhood friend, the one person she knew could help her disappear. He was the king of the underworld, a man who hated women. But tonight, everything changed. Lucien Belucci, the infamous Mafia King, had never met a woman who could tempt him, but on his way to a wedding arranged by his brother, he encountered a runaway bride and for some reason, his man that he could never get up was now hard in anger. So when she demanded for his help, he took the chance. "What do you think about getting married today?" A dangerous alliance. A desperate escape. Their worlds collide in a storm of betrayal and passion. Two souls, bound by circumstance and driven by a need for lust and freedom, find themselves in a deadly game where love and revenge become intertwined. Will their escape lead to a new life, or will they be consumed by the darkness they've unleashed?

Bound by debt and haunted by a past she can't speak of, Annamaria is offered as a bride to Ares de Luca Sinclair, the ruthless head of the Sicilian mafia. He needs her secret; she craves revenge. Ares believes Annamaria holds the key to stopping a Russian mob invasion, but he doesn't know she blames him for her family's massacre and has vowed to get her revenge on him. As their lives intertwine, the lines between enemy and lover blur. But their fragile bond is threatened by a vengeful half-brother hungry for Ares's power, a scorned woman determined to reclaim her place by his side, and a forbidden love that refuses to be denied. When the truth is finally revealed, Annamaria finds herself a pawn in a deadly game. Kidnapped and tortured, she's forced to confront the secrets she's desperately trying to protect. Ares, consumed by betrayal, unleashes his fury, unaware he's playing right into the hands of his enemies. Will their love survive the lies, the betrayals, and the ever-present threat of the mafia underworld? Or will their dangerous dance end in heartbreak and ruin?