Underworld Fanfiction Crossover Novels & Stories

In my last life, my sister Serena Vega ran to Monaco the night before her wedding, and my family shoved me into her dress before dawn. Damian Lucchese, the young Godfather of New York, had been waiting at the altar for her. The moment he lifted my veil and saw me instead, the warmth in his eyes went cold. For five years, I was his hidden wife. The underworld knew he was married, but no one knew to whom. My parents blamed me for stealing Serena’s place and still failing to keep his heart. Then Serena came home. That Christmas, Damian took her and my parents to his mountain estate. When a blizzard hit, his men rushed everyone onto the helicopter. No one remembered me. I died in that frozen house, three months pregnant with Damian’s child. When I opened my eyes again, Serena had just returned to New York. This time, I would not beg for love. Only when I truly walked away, none of them had the right to regret it.

Ava Carter is no stranger to danger. As a fearless investigative journalist, she’s built her career on uncovering secrets others would kill to keep buried. When a tip leads her to Damian Moretti—the elusive billionaire with whispered ties to the underworld—she knows she’s onto something big. Damian is powerful, ruthless, and used to controlling every aspect of his world. But when Ava starts prying into his business, she becomes a problem he can’t ignore. He gives her a warning—walk away, or face the consequences. Yet, the more he tries to push her away, the more drawn he is to the fire in her eyes, the defiance in her stance. Ava is determined to expose him. Damian is determined to keep his secrets. But in a city built on deception, neither of them is prepared for the dangerous attraction pulling them together. As enemies close in and the truth threatens to shatter everything, Ava must decide—will she bring Damian down, or will she risk everything to stand beside him? In Sincity, love is a gamble… and some bets can cost you everything!

'He Was Destined To Crown Her As His Queen' Scarlett Silvermist Williams 22 Year Old Beauty With Brain. Smart, Sweet, Sassy And Classy. No Family. But Best Friend Zayn Parker. No.1 Hacker And Software Designer. Kind Of Rich But With Her Name Lies The Darkesr And Deepest Secrets Of Her Life. One Of Them Is Being Disowned By Her Own Parents. Alexander Nikolaevich Volkov Worlds Best Buisnessman And King Of The Underworld At Age Of 25. Sexy, Hot And Perfection Are Word's To Describe His Appearance. Girl's Kiss The Land He Walks On. Owns A Multi-billion Empire. Leader Of Italian And Russian Mafia, Basically Own's The Whole World. Heart Cold As Ice, Merciless, Dominating. His Aura Screams Danger And People Who Get In His Way Becomes Past. "Why Did You Do That?" Scarlett Yelled And I Looked Up At Her And I Felt More Anger And Rage As Why The Fuck She Didn't Told Me About This. Let's Join The Journey Of How Alexander And Scarelett Meet?

Tobin Leith was never supposed to survive the first week. When his older brother's gambling debts spiral out of control, the Saal mafia syndicate comes to collect. They want collateral to keep on a leash until the debt is settled. Tobin volunteers before his brother can speak. Emeric Saal, a dominant underworld boss, is cold, calculating, and bored by almost everything. He accepts the arrangement without emotion. Tobin is just a pawn housed in his guest wing under constant surveillance. Except Tobin refuses to act like a hostage. He stays defiant. On the fourth night, Emeric catches him picking the lock on his office door with a fashioned tension wrench. Emeric simply sits down across from him, lights a cigarette, and says the words that change everything: "I was wondering when you would try." Emeric already knows the truth. Tobin is operating under a hidden identity, actively hunting for revenge. What begins as a volatile cat-and-mouse game quickly twists into a steamy, intense MM romance. Emeric, for the first time in years, is deeply interested in seeing what happens next.

During a turf war, I took a bullet for Daniel Wilson. When I woke up in the family hospital after three years in a coma, I discovered that Eva, the showgirl I'd saved from a black market auction, had usurped my place in the Wilson family. My husband Daniel, the family's Underboss, saw that I was awake, and his first words to me were: "The entire underworld recognizes Eva as the woman by my side now. Why did you have to wake up at a time like this?" "Alice and I both love her. She's the one who's been by our side these past three years. And you? You've just been a body in a hospital bed, absent from our lives." "We're through, Sarah." Watching the man I once loved so deeply speak such heartless words, I didn't put up a fight. I simply nodded and gave him what he wanted. But he had no idea the Wilson family was about to burn to the ground.

**SOLD. BETRAYED. CURSED.** Lyra Anderson’s uncle didn’t just betray her, he sold her to HELL. Orphaned, broken, and stripped of hope, she’s now a prized breeder in the Devil’s underworld… until her first client walks in. **Vincenzo Van Doren.** The most ruthless Mafia king in history. A monster bound by a blood curse, desperate for an heir. But the moment he sees Lyra, his world shatters. She’s not just a breeder—she’s his fated mate. And he’ll burn empires to claim her. Fate has other plans. Lyra’s first shift unleashes an unthinkable truth—she’s no ordinary Omega. She’s a Dominant, a creature of myth, and now the most hunted woman alive. For Vincenzo’s rival, Marcello, she’s the ultimate weapon. For Vincenzo, she’s the key to his salvation But when Lyra uncovers a devastating lie—that Vincenzo’s love might be nothing but a cold-blooded ruse—her trust evaporates in blood and betrayal. Will she break his curse… or become it?

His fingers ghost along her thigh, feather-light, promising ruin. 'Beg for it, principessa,' he murmurs against her ear, 'or I'll make you come until you forget your own name. Again.'" ______ In the shadowed empires of Europe, Elara Voss is the untouchable princess of the German mafia—beautiful, pure, and groomed for absolute loyalty. But beneath her poised exterior burns a secret craving for chaos. Dante Russo, the ruthless king of Rome's underworld, sees her once and obsesses. With eyes like black fire and a reputation for taking what he craves, he orchestrates her kidnapping on the eve of her arranged marriage, forcing her into vows at gunpoint. Now captive in his Rome penthouse, Elara is bound by his rules and if she breaks any, punishments are slow and sinful—teasing touches that leave her trembling, belts that burn, vibrators that torment until defiance melts into desperate whimpers and slick need. She fights back fiercely but every clash deepens the addiction. What starts as vengeance twists into craving, for both predator and prey. In a game of empires and betrayal, one question lingers—who will corrupt whom completely?

My best friend breaks down and accuses me of skimming family shipments, which cost us billions. Without hesitation, my fiance, Don Scarpa Falcone, points a gun at me. The bullet grazes my ear. He sends me to prison himself, then gets engaged to my best friend instead. Before I'm taken away, the family butler begs him, "You raised her yourself. She's your fiancee. You can't just ruin her life like this!" "Break the rules, and pay in blood," he says, polishing his gun. "As for her future, I'll decide that later." Five years later, I walk out of prison. The entire Falcone family is waiting at the gate with him, as if my freedom were a handout. "Looks like you've learned your lesson. It's time to return and get back to work. Don't do anything stupid again," he says. I ignore him and walk straight to the stretch Lincoln behind him. The door opens. Chris Corleone, the king of the Aurelian underworld, raises his glass to me. "Welcome back, partner."

Kain Morozov is the most dangerous cleaner in the European underworld and entirely without mercy. When the man that raised him murdered his pregnant girlfriend and tries to force him into their service, he responds the only way he knows how: he attends their dinner party and kills everyone at the table. Everyone except the girl sitting across from him. Tatiana Morozov is twenty-two, sheltered to the point of suffocation, sharp-tongued and completely unprepared for the world her parents kept her sealed away from. She is also the only person Kain has ever been unable to kill, because she looked up at him across a dinner table with blood on her face and his dead mother's eyes shone through. He takes her to protect her. She sees it as kidnapping. What follows is a slow, furious, devastating collision between a broken soul who doesn't know he's capable of gentleness and a naive girl who doesn't know the world she grew up in was built on bodies. Between them stands Julian Ashford, handsome, warm, attentive, everything Kain is not.

Cravings was all it took… One moment, Samuel Preston was an ordinary college student. The next, he was snatched from his dorm room and thrown into the ruthless underworld of (THE BIDEN), an underground syndicate led by the elusive and brutal Teddy Vietnam. Known for trafficking drugs, dealing weapons, and orchestrating chaos against the military, The Biden doesn’t take no for an answer. Especially not from recruits. But Samuel isn’t just any recruit. He’s the son of the nation’s Chief of Defense Staff,a secret that could either be his greatest weapon or the reason he never sees daylight again. Determined to escape, Samuel does everything to sabotage their operations, only to catch the attention of Teddy himself. Cold, cunning, and feared by all… Teddy finds himself obsessively drawn to Samuel's fire, his resistance, his cravings for freedom. Trapped between a powerful man’s dangerous affection and the desperate yearning to return to his real life, Samuel must play a deadly game. Because in The Biden, love is war, freedom is forbidden, and craving the wrong thing might just get you killed. A dark romance thriller where power, passion, and rebellion collide.