Underworld Fanfiction Crossover Novels & Stories

Officer Ana Sofía González has lived her entire life haunted by one night the night her father, a respected police officer, was brutally murdered on the orders of one of Valencia’s ruthless El Jafes. Years later, the city trembles under the mafia’s iron grip, and Ana finally sees her chance for revenge. To expose the syndicate from within, she goes undercover under a new identity Mariana Gustav, the mysterious daughter of the recently arrested mafia lord, Ricardo Gustav. But what Ana doesn’t know is that Mariana’s life comes with dangerous strings attached including a marriage contract with José Fernández, the cold-blooded heir to a criminal empire, known across the underworld as The Prince of Death. Trapped between duty and deception, Ana must play her role perfectly or die trying. Every step she takes draws her deeper into a world of power games, and forbidden desire.And as she falls too deep into her role as Mariana, she is faced with the choice, to remain loyal to her her Mafia husband or bring his father’s billion dollar enterprise crashing to the ground .

Selene Morie watches as the world starts crumbling, the stars are falling and people were dying. She was ready to die that moment, or maybe she indeed died that time but then she heard a voice asking her If the world is ending what would she do? She answered consciously and before she knew it, she entered a white blank space and was told that she can redeem her world and past life back if she can successfully finish the mission that will be given to her. It is to prevent a world from collapsing. •• When Selene Morie became Selene Aphelion also known as the Kingdom's moon and the Duke's daughter, she knew things aren't as easy as she expected. The moment she woke up, she appeared in a mysterious world of Immortals, Sorcery, Beasts, and War. She was told that her mission is to prevent the world from collapsing, how can she do that if she can't even save her own world? Furthermore, she became the destined woman of an immortal. Her soulmate is the same man who will declare war in the future. To prevent that tragic end, she must tame and unblackened the notorious Monarch of the Underworld, Azrael.

All he ever wanted was freedom… and love. Twenty two year-old Noah has lived a life trapped behind bruises and locked doors. Raised by a cruel father and an indifferent stepmother, his days have been filled with silence, pain, and the desperate hope that one day—someone would see him. Save him. But salvation never came. Instead, he’s sold—like property—to a powerful mafia boss under the guise of an arranged marriage. Cold, ruthless, and feared across the underworld, Damian Moretti doesn’t need love. What he needs is a husband who can serve as a political pawn in a war of families. Noah is everything Damian didn’t expect: fragile yet unyielding, terrified yet defiant. And while their marriage begins in chains, something begins to shift in the shadows of their forced union. As secrets unravel and danger stalks every corner, Noah must decide: will he be caged forever by the choices of others—or rise and claim the life and love he was always denied? In a world ruled by blood and power, can a boy who was never wanted become the heart no one can live without?

She signed a $50 million blood contract to become the grieving widow of a dead mafia billionaire. But the man she’s mourning is very much alive… watching her every move through hidden cameras… and slowly becoming dangerously obsessed with the only woman who ever shed real tears for him. Evelyn Monroe thought she was saving her dying mother from debt. Instead, she stepped into the deadly underworld of the Voss family syndicate. Now Evie is trapped inside a fortified mansion, playing the perfect widow for the ruthless don who faked his own death — Kael Voss, the cold-blooded heir who controls half the city’s illegal empire. A shadow from the past is hunting them both — the same killer who butchered Kael’s mother and nearly put a bullet in his head. As forbidden passion ignites between the fake widow and her secret husband, lines blur between protection and possession. One year. One lethal lie. One heart caught in the crossfire. Will Evie walk away with fifty million dollars and her life… or will she fall for the dangerous mafia king who already owns her soul?

In the grand Kingdom of Pereshwar, there lived a servant by the name of Nadia Rafsani, a.k.a. Nailah El Nour. Yep, that’s me. After experiencing the harsh reality of being a neglected bastard princess, I decided to live under the radar as a servant. Nailah El Nour, last princess of the Pereshwaran Empire, was not widely known. I was leading a very low-key and successful life until all the secrets about my family history started to unravel chaotically. And, it all started with a very annoying crow. To top off my list of inflating struggles, the crow was none other than the crown prince of the Pereshwaran Empire, Calaf Abraha. Moreover, my very existence poses a huge threat to the new kingdom, and I can under no circumstance fall into their hands. Now, as I struggle to keep my identity a secret, I also have to deal with this manipulative and infuriating prince from invading my personal life. But beware, the prince is allied with Jinns, and the Jinns know who whisper their secrets. They say death isn’t a good enough punishment for Nadia, so what is? An eternal binding, or permanent exile to the underworld? Find out more in this spellbinding story of two enemies who'd rip worlds apart just to create their own.

In the ruthless underworld where empires are built on blood and betrayal, Cove Voss is king. Cold. Calculating. Untouchable. When his enemy’s younger brother is delivered to him bound, blindfolded, and broken Cove expects to use Elliot Reyes as leverage. What he doesn’t expect is the fierce, beautiful hacker who trembles at the mere idea of darkness… yet ignites something far more dangerous in him the moment the blindfold comes off. Trapped in Cove’s luxurious penthouse prison, Eli fights the possessive crime lord with every sarcastic word and defiant glare. But in the suffocating dark, where fear turns into forbidden heat and every touch is both punishment and promise, resistance begins to crack. Cove doesn’t just want revenge. He wants everything. Eli’s body. His surrender. His soul. As deadly secrets surface and Eli’s own brother plots his death, the lines between captor and captive, hatred and obsession, blur into something far more lethal. In a world where trust gets you killed, Cove Voss has claimed what’s his and he will burn the city to the ground before he lets Eli go.

BLOOD AND PETALS PROLOGUE She sells flowers. He spills blood. And he will stop at nothing to make her his. Elena Rossi has always lived quietly among roses and lilies, dreaming of love as gentle as the petals she arranges. She thought she found it in Daniel, the man she planned to marry. Until her wedding day when a dangerous stranger walked into the church and shattered everything. Adrian Volkov is a king in the underworld, a man feared for his ruthlessness and power. But to him, Elena is not just a prize. She is an obsession. A storm he cannot live without. And he will burn the world and anyone in it, to claim her. Torn from the life she knew, Elena resists him, manipulates him, and even runs from him. But Adrian is relentless. His love is dark, his touch both punishing and tender, and his obsession inescapable. When betrayal and bloodshed close in, Elena must face the truth: She doesn’t just fear him. She doesn’t just hate him. She loves him. Petals and Blood is a haunting, passionate tale of obsession, betrayal, and the dangerous kind of love that blooms in shadows.

In the underworld littered with only the worst people imaginable, it is very important to know who you can trust and who you can't. Where death is just a breath away and one mistake can cause an all-out war between powerful groups of people, trust is something earned, not given. Eden Maschera, the leader of an organization known as The Aberrants with their signature letter 'A' in all the clubs, restaurants, hotels and everything else they owned, knows this fact. To get where he is, he's had to make many sacrifices. With blood-stained hands, he watched over all the people under him with an iron fist and unwavering ideals. No one knows to be more cautious against other people than him, not after what he's been through. But, all that is thrown out the window when he meets a pretty, naked, black-haired man in a club with who he did not get along instantly. Even though several things happened just in the course of that night. In a world of betrayals, heartbreaks, lies, secrets and death, what will become of the two? Read to find out. Updates every Monday, Wednesday and Friday (GMT+8) P.s. Not my artwork

They call me 'Ghost.' The king of mercenaries, feared across the entire black market. But for Madeline, the Godmother of the Chicago Mafia, I walked away from it all. She wanted me by her side, so I became a normal man. We were married for five years. The entire underworld knew she loved me more than life itself. She even had my dagger tattooed next to her family's crest—a permanent mark of loyalty. Until I got the photo from her lover. The bartender was naked, his chest covered in red scratches from her nails. Madeline’s hand, with its red polish, was still on his waist. He’d drawn his name right next to my dagger on her skin. And my wife had let him. "Madeline says I'm the only one who can make her feel like a woman. You can't satisfy her anymore. It's time to make way for a younger man." I didn't reply. I just made a call. "Hello. I need a new identity. And a plane ticket."

I stared at Stefano lying on the floor. "Hey, this may hurt a little," I spoke, trying my best to adopt a professional tone. Stefano groaned softly, his lips curving into a faint, almost bitter smirk as he muttered, "Wouldn’t be the first time you’ve hurt me, Bella." ** Forced to clear her sick father's debt to the italian Mafia and pay her father hospital bills, the 23-year-old nurse is forced to accept risky jobs like treating criminals in the dead of the night. On the day Bella Smith learns of the shocking news that her bedridden boyfriend, Robin, has been transferred to another hospital outside the country, she is heartbroken and decides to go for a drink. But when Bella is asked to treat a handsome stranger at the hotel room, she finds out the stranger is her ex-boyfriend from high school and now he wouldn't let her go. Stefano Carlo gets everything he wants, now he wants to make Bella suffer from leaving him in the past, but as they navigate a contract marriage, they find themselves rekindling old feelings and threading through the dark underworld of the mafia.