Underworld Fanfiction Crossover Novels & Stories

"I'm scheduling the C-section for tomorrow. The doctor will extract her bone marrow during the procedure." Those were the words that shattered Selena's world. Her husband, Ellis Winston, the most ruthless Mafia Don in New York, was going to force her to deliver their baby at twenty-seven weeks. To him, her pregnant body was just a blood farm to cure Jennifer, the manipulative half-sister who supposedly saved his life. So, Selena ran. She left behind a pool of blood, a crushed ultrasound photo, and a destroyed wedding ring. The world thought she was dead. Six years later, Ellis is a walking corpse. He rules the global underworld, but he is tormented by the ghost of the wife he pushed to the grave. During his company's grand anniversary banquet, the heavy ballroom doors burst open. Selena is back. But she isn't the weak, obedient housewife in a cheap housewife anymore. She is the untouchable heiress of the Merrick billionaire empire. She strides down the red carpet, a signed divorce agreement in hand, ready to crush the man who ruined her. Ellis refuses to let her go. He is willing to go to war with Wall Street to drag her back. But what will the arrogant Don do when he comes face-to-face with a genius six-year-old boy who looks exactly like him? He will pay any price to win her back. Even if it costs him his empire, his organs, and his life.

Lucas Blackwood ruthlessly destroyed me 5 years ago, and now I have risen from the ashes to destroy him in return. 5 years ago i was nothing but a naive, lovesick girl hopelessly devoted to Lucas Blackwood—the powerful, arrogant heir to the Blackwood Pack. My bond with Lucas undeniable, our passion feral and all-consuming. But when Lucas’s father demanded he choose power over love, Lucas shattered my heart with a brutal rejection in front of the pack and leaving me to fend for myself. Now, I am the Ice Queen of Manhattan’s corporate underworld, the formidable CEO of Carter & Co., a multi-billion-dollar empire built on intelligence, ambition, and pure spite. The woman Lucas left behind is gone, replaced by someone stronger, smarter, and far more dangerous. And now, I am coming for him. When someone mercilessly attacks Blackwood EnterprisesI am forced to confront the woman I thought I’d buried in my past, I find myself drawn into a twisted game of power and passion. My obsession with reclaiming her becomes as dark as my guilt over losing her. But this time, Selina isn’t interested in forgiveness—only revenge. What Lucas doesn’t know is that Selina holds a secret that will shatter his world. And as their brutal war escalates, the line between hatred and desire blurs until neither can tell if they’re trying to destroy each other… or devour each other whole.

On my twentieth birthday, I had to choose a husband before all of Olympus. Everyone thought I would choose Apollo Olympion, the radiant heir of the sun god and the man I had loved for years. In my last life, I did. Because of me, he gained Zeus’s favor, sacred estates, and the right to rise above every divine heir. But after our marriage, he gave his sunlight to Celeste, the dying flower nymph my mother had taken in. When Demeter drove her away, Apollo blamed me. From then on, he hated me. He humiliated me, broke me, and finally let my sacred medicine become slow poison. I died carrying his child, on the night the spring inside me withered. When I opened my eyes again, I was back on my twentieth birthday. This time, I let them have each other. So before Zeus and every god in the Golden Hall, I chose Cassian Hadeion, the last blood of Hades. The cursed underworld prince everyone mocked. Apollo sneered. “Choosing him just to make me jealous?” I ignored him. Because in my last life, after I died, Cassian was the only one who avenged me. Then Apollo stepped closer and whispered, “Funny. That wasn’t who you chose last time.”

"You want me, Davina. You can deny it all you want. I will make you scream the truth." His voice, a guttural purr, slid over my skin, igniting a shameful, undeniable heat. His hot, possessive gaze consumed me, stripping me bare, making my body clench with fear and anticipation. I was trembling, aching, for a man who I should hat. The man that can destroy me. --- The anonymous call pulled Davina Wilson into a nightmare realm of carnal secrets and violence. Summoned to her estranged father's bedside, she found a brutal aftermath reeking of raw power. Malcolm's chilling dismissal and her stepmother's icy glare hinted at a depraved family darkness she'd never imagined. Then came Ezra, a formidable, unapologetically masculine force, unsettlingly aware of a past Davina had erased thirteen years ago—a past he was determined to excavate and brand as his own. Plunged into a dangerous underworld to shield her family, Davina found herself Ezra's captive. He hungered to devour her innocence, seeing a wild, unyielding lust he was determined to dominate and unleash. His possessive interest deepened into an all-consuming claim. He was the alpha predator she should flee, yet the forbidden craving was undeniable. As Davina navigated this treacherous landscape, the lines between captor and savage lover, threat and intoxicating surrender, blurred. An attraction so potent ignited, promising either her ultimate downfall or a dark, exhilarating damnation.

To the world, I’m the wife of Kael Voss. In truth, I’m the daughter of the Grim Reaper. I once defied death to save Kael Voss, the Mafia godfather. After ninety-nine proposals, his persistence melted my heart. I hid my divine heritage, abandoned the Underworld, and became his beloved Donna. After the marriage, he firmly kept his vows, turning our marriage into a fairytale. With our fifth wedding anniversary approaching, I wanted to get him a gift. Instead, I overheard a conversation between him and the maid, Luna. "Honey, your birthday is coming up soon. What gift do you want?" "I want you," Kael replied, his voice dripping with affection. "I want you by my side forever. I need to make sure Iris never finds out about us... and I want you to give me an heir." "Are you sure?" "Positive." Kael’s tone was unwavering. The grin slid off my face the moment I heard the answer and I couldn’t believe what I was hearing. The blood drained from my face. The hope I had cherished shattered into dust. The love he had sworn to me had rotted away in just five years, leaving nothing but a hollow shell. If he no longer wanted my heart, I would take it back. The full moon rose in two days. It is time for my return to the Underworld.

Everyone in the underworld knew Rosalie Thorne, the "Thorn Principessa" of the North. Wild, rebellious, notorious. Street racing, high-stakes gambling, guns, and drinking, she had mastered them all. The rose-and-thorn tattoo on the nape of her neck drove countless men wild. But what they didn't know was that for Rocco, the new mob boss of the South, a single sentence, "I prefer a more obedient woman," was all it took. At his word, I had the tattoo lasered off and swapped my leathers for long, conservative dresses. I am Rosalie. For five years, I hid my identity and played the porcelain doll Rocco wanted. Until the night he eliminated all his rivals and was crowned the new Don of the South. That was when he let his men bow to another woman, hailing her as their "Donna." I watched Rocco. The same hands that had just executed a traitor were now gently placing a pair of red high heels on the feet of his adoptive sister, Vivian. "Rosalie, she has a temper. She'll make a scene if she doesn't get the title." "You're the good one, the obedient one. Just let her have this." That day, I walked straight out into the rain and never looked back. I was never truly obedient. I just made myself smaller for him. My family had already chosen a husband for me. They had been waiting five years, just for me to say yes.

Carson Meyer, heir to the strongest underworld mafia in America. He is known for his ruthless and rough behavior. Slaying people is a piece of cake for him. He does not make any exceptions, not once. Now his father, the current head of the mafia racket, is worried about his son. He wants his son to think rationally before taking blood on his hands. The only answer he could find to that was MARRIAGE. He demands his son to get married if he wants to inherit his business. Carson looked up to too many girls he slept with without any emotions or pleasure but out of exhaustion. He couldn’t find a single woman that could interest him with loyalty and obedience. Sleeping with him for a night or two was legal to the girls but spending their whole life with a psychopath wasn’t. Just then his eyes rested on an innocent beauty getting auctioned. He buys her and the marriage goes smoothly as he was getting fond of her innocence and obedience. But then, the wedding night revealed a harsh truth. He got to know Luna Blake, the girl he bought is blind. The betrayal he felt overwhelmed his thinking. What will he do now? He surely can’t divorce her or he will lose his inheritance. But he also can’t keep her as his wife. Will this slave and master contract serve him the delicacies he urges for? Or will this be the other way around?

Milene sees her world crumbling down after the death of her father, what seemed like a perfect world comes crashing down within the twinkle of an eye. Being the eldest daughter of the Scardoni family, she felt the need to help out when her family began to face endless embarrassment from loan sharks but what seemed like a duty to maintain the peace of her family ended up with her being sold to a capo in the Italian mafia world. All Angelo needed is a bride who would ease the tension surrounding the sudden attempt on his life. He used the helpless situation yet selfish act of the Scardoni widow to gain her daughter as his bride but ends up developing deep feelings for her. As Milene is being forced to live with Angelo as his wife, she is faced with some difficulties in the underworld facing endless criticism from women who has been there before her. With the increased tension, Angelo finds himself going through anything just to protect his wife, he finds himself being forced to forfeit his role as capo because of his unwillingness to send Milene away and then get himself acquainted with the Russian mafia family by marrying the pakhan’s daughter. What happens when he wakes up one morning to discover that Milene is no longer by his side? Would he give up everything to look for her or would he believe the tales that is being told.

Ellaya Stone’s life was once filled with music, adoration, and dreams—a rockstar who believed in the purity of love. But when she gave her heart to Iden Devid Ruan, she unknowingly fell into the hands of a devil cloaked in power and charm. Betrayed and broken, Ellaya transforms into a force fueled by heartbreak and vengeance. Iden Devid Ruan thrives in control, power, and manipulation. A celebrated business tycoon and a hidden kingpin of the criminal underworld, he sees love as weakness—a tool to exploit. Ellaya was meant to be his pawn, a target for revenge. But she became his greatest obsession, a mystery he couldn’t unravel. Years later, fate forces them to collide again, reigniting a dangerous fire that neither can contain. Ellaya’s quest for justice takes her deep into a labyrinth of lies and betrayal as she seeks retribution for the life she lost. But Iden isn’t willing to let her go. His love turns darker, his obsession sharper, as he fights to shield her from the chaos their entwined destinies have created. With secrets resurfacing like specters from the past, their battle becomes one of love, vengeance, and redemption. Will Ellaya’s thirst for revenge consume her, or will the truths she uncovers demand forgiveness? And can Iden protect the woman he refuses to lose, or will his darkness destroy them both? "SHE, HIS ENIGMA" invites you into a world of deception, passion, and intrigue—a tale where love is both salvation and curse, and every heartbeat is a weapon in the fight for their souls.

Heartbroken Sarah makes an impulsive decision to become a nun all against her father's advice, but due to her adamance, she unfortunately finds herself trapped in a human-trafficking underworld disguising as a convent. Having being noted for her inquisitiveness, feistiness and defiance by those in charge, she was selected as the ultimate price to be auctioned off to the highest bidder of buyers consisting of dangerous men and women in illegal businesses who often patronized the 'convent'. Whilst secretly plotting an escape with her friends, Sarah runs smack into Stefano Franchetti, an infamous Mafia Lord who is feared and respected by all. Unable to decipher why exactly he's drawn to her, it became his mission to keep her from the other predators after outbidding his arch enemy and adversary, Guiliano, who is rather obsessed with her and was determined to get her at all cost to fulfill a long overdue fantasy, even if it meant annihilating Franchetti first. But Guiliano didn't have to do much since Sarah who was determined to still escape to freedom from the supposed protection of Franchetti would rather make his life a living hell until he's forced to give her up. But could he give her up after she had innocently managed to worm her way into his cold heart despite the fact that she was pushing him to the point where he'd rather put her over his knee to instill some manners on her?