Underworld Fanfiction Crossover

Adams Martin does everything humanly possible to avoid people after surviving COVID-19 and suffering from PTSD. Following his therapist’s instructions, he adopts a dog from the shelter to help him navigate being around people. The only problem is, that his dog occasionally shifts from dog to man and back.   Kehan Gammy (Alex) is the embodied soul of the first Inugami, created by the gods. When he was sent to the human world as punishment for letting a powerful, dark soul escape into the human world, he didn’t expect to have to be bound to a human and have to blend in as one, learning everything like a baby and adapting to his new-found body. But Adams was easy to bond with, giving him a human name, Alex, he’d appeared as a common dog. When his exit from the underworld set off strange events happen in New York. He has to devise a plan that doesn’t involve Adams Martin in Will he be able to protect everything he wants to preserve or will he return with yet another failure?

Imagine being sent to kill the most ‘unkillable’ man in the underworld—The Big Bad Alpha. If you fail, he kills you without mercy. And everyone else who ever tried failed. How then can you, a lone female assassin, kill this monster? You decide to do it against all odds but when you get there, BOOM! The deadliest Alpha alive is your mate. Wayne Knight stepped into the room and Olive's heart thudded loudly. He was the most powerful Alpha in the country, and she was sent to assassinate him. But she failed and was caught, which meant he would not have any mercy on her. He was going to kill her mercilessly and ruthlessly. But why was she loving the scent of him since he stepped into the room? Why did she love his gaze on her despite being scared? And why was he not breaking his eye contact with her ever since he entered the room? Well, her wolf growled her the answer to all her questions...“MATE.”

She sold her soul to save her daughter… but the devil wears a billionaire’s smile. Emily Carter is a desperate mother clawing her way through the filth of New York’s underworld, dancing for dollars in a club that devours women whole. When her baby girl falls deathly ill, she’s forced into an impossible choice: let her child die… or marry a cold-hearted billionaire with a past darker than her own. Alexander Richie doesn’t believe in love but he believes in ownership. His proposal isn’t a lifeline. It’s a leash. Thrust into a mansion of lies, judgment, and cruel stepchildren, Emily trades one nightmare for another. Her new life is gilded in luxury but soaked in venom, and the people inside want to break her. But Emily didn’t survive the streets to become anyone’s victim not even his. Love wasn’t part of the deal. But what happens when the broken start to feel? And how many bodies must fall before the truth is revealed?

He leaned in, inhaling her sweet scent as his hands traveled from her back to her waist, and then down to her thigh. She felt her breath hitch as she let out a small gasp. "We shouldn't be doing this." She said, her voice barely above a whisper. "Then tell me to stop." His voice was low, daring, as his fingers traced slow circles on her skin. *** Lucy had always lived life on her own terms, until the night everything changed. One moment, she was free; the next, she was bound to Barry Cooper, a cold, dangerous man who ruled the underworld with an iron fist. She never expected to be trapped in a world of power struggles, deceit, and unspoken desires. But as the lines between captor and captive blur, Lucy realizes she’s caught in a deadly game, one where trust is a luxury and survival is not guaranteed. Will she escape the ruthless mobster who owns her… or will she become his greatest obsession?

As my blade pierces the base of his neck, the silver sizzles against his skin. His cold blue eyes open wide. The grim reality of his situation sets in. He gulps hard and shakes his head in fear. "I repent." He squeaks like the coward he is. "Forgive my crimes. Let me face the Council." "You'll find no mercy here, Sin." Blood gushes down his bare chest freely. "You will be judged by the Goddess." His expression quickly changes to one of anger, exposing his ruse. "I see you in the Palace of the Goddess, I will kill you again." I growl. "And if she casts me out, I will meet you on the edge of the River Styx and kill you in Purgatory over and over until the Ferryman come to collect us. And if Hades allows, I will continue to kill you in the Underworld until the end of time." "I underestimated you." He chokes. "Everyone does." I whisper as I lay my full weight against the pommel.

He met her four years ago, but she cannot remember him now. She does not even recall who he is or her place in his heart. But when he learnt that she was in trouble, he did not hesitate to go and save her. He is the most powerful man not only in the country, but the whole world. And more, he is the ruthless, the inhuman underworld boss. Everyone tremble when he is mentioned. But she still chose to lean onto him when he came, no matter how dangerous he looked. She believed that he was her predator, the man after her and her family's lives. But since she had no choice, she had to lean in on him, to do what he asked her to. It was only later that she fell hard in love with him. And when he felt like he would put her life in danger, and wanted to push her away, she looked at him like he was a fool. "You are mine, Don," she said. "I am not going anywhere."

“He looked at Chloe and saw nothing. She is the perfect camouflage. She is safe because she is... undesirable.” Lorenzo Moretti, the King of Sicily's underworld, trusts no one. A deep, unresolved betrayal has poisoned his heart, leaving him obsessed with control and viewing women as a liability. He met Chloe Rossi: a clumsy, unfiltered cook drowning in debt. She stumbles into his life and is hired for her invisibility. She is too messy, too chaotic, and too chubby to attract the attention of assassins or rivals. But Chloe is an accident in motion. Her nervous, unfiltered honesty cuts through Lorenzo's defenses. When a moment of rage forces him to lock them both in his office, she becomes a witness to his deepest weakness. He told her she was undesirable. He hired her for utility. Now, trapped and holding his most dangerous secret, she watches the King’s paranoia turn into an obsession he can’t fight. She is the only one who sees the broken man beneath the monster.

In Valeburn, Atlanta’s most dangerous block, power doesn’t pass hands—it’s taken with blood. And no one understands that more than Jayce Navarro, the razor-sharp kingpin who built his empire brick by brick, silence by silence. He rules with cold precision, a name whispered like a gun being cocked—until the ghost of his past returns with vengeance on his breath. Eli Mercer is no longer the soft-eyed teen Jayce once kissed beneath the chapel steps. Fresh from the feds and wrapped in scars, Eli returns to the block with one purpose: burn down the throne that forgot him. But when fate—and the city’s shifting underworld—forces them into an uneasy alliance, old feelings smolder beneath their armor. Lust tangles with rage. Loyalty with betrayal. And love? It’s the most dangerous weapon of all. As enemies circle from the inside and the state threatens to dismantle Jayce’s entire operation, he and Eli must decide what’s worth saving—their empires, their reputations… or each other. But in Valeburn, every crown is cursed. And every favor comes with fire.

"You are mine. And no one can own you except me," Dimitri commanded, his voice cold as ice. "I am not your property," Natasha shot back, her eyes burning with defiance. "You have no right to own me." But in the dark underworld of the mafia, rights don't exist. Only power. Dimitri Volkov is a ruthless Mafia billionaire who controls everything- his empire, his enemies, and now her. When he takes Natasha captive after a violent warehouse massacre, he expects her to break like everyone else. She refuses. She fights. She challenges him in ways that ignite an obsession he can't control. Natasha is trapped in a golden cage, caught between two impossible choices. She came to his world for a reason- to access secrets that could destroy him completely. But as Dimitri's possessive love deepens and his obsession consumes them both, staying becomes harder. Leaving becomes impossible. Some prisons are built with steel. Others are built with desire. In the end, love might be the most dangerous cage of all.

I’m the public lover of Tara Brewer, the underworld queen. She often dotes on me and treats me like I'm her most precious treasure, and she goes as far as to claim that she wants to give birth to ten children for me. But when I'm getting beaten up by others while completely drenched in my own blood, Tara doesn't recognize me at all. Instead, she turns to comfort her beau, Brandon Holden. "That filthy bastard has crossed you, honey! You can just beat him to death! I'll be your safety net!" Only then do I realize that Brandon is Tara's lover this whole time. As soon as Tara's words fall, she snatches the boxing gloves from Brandon and begins punching my face, which has a mixture of blood and tears streaking down my cheeks. At the same time, she says icily, "Don't worry. Once you're dead, I'll inform your wife so that she can pick up your corpse."