Underworld Fanfiction Crossover Novels & Stories

Synopsis: After sacrificing her own life to save a young billionaire, Anne became the wife of Edric Raymond overnight. However, it was only a loveless contract marriage that would last two years, just until Edric’s ex-girlfriend returned from studying abroad. Anne thought she could melt Edric’s cold heart, but all she received was icy resistance and words that pierced her like knives. One passionate, mistaken night gave Anne a spark of hope, only for it to be crushed when Bella, Edric’s ex, returned the very next day. Anne gave up, signed the divorce papers, and disappeared. Unexpectedly, a car accident brought back the memories Anne had lost for three years! From that day on,

A world which nanobots can repair the human body. Landed in the hands of the most cunning and devious underworld king. Many have died attempting to steal it, but only one has survived because the ruthless leader was smitten by her beauty. The intention was to live an easy, uncomplicated life away from the violent world of black market. Carly is the muscle on the field work while Baby is the brain in the backroom in charge of hatching plans. The Belle sisters are their alias names. Both are equally lovely. They're known for being the best at locating and hacking jobs for various black market organizations. They were duped into stealing from Charles. Charles is a man who is tag

Tessa, known as Phantom Reaper, is a female assassin, the best of the best in her trade. Phantom Reaper is known for being a cold, calculating, untraceable, unfeeling, and ruthless assassin in the Underworld society of discarded criminals. This novel depicts her in first person narrative as we discover her past and follow her through an unforeseen encounter that changes her life forever in ways she never dreamed were possible. The Phantom Reaper contains violence, murder, and sexually explicit content, so read at your own risk.

Alyssa is an assassin who works for the Bloodthorn Organization. She finds herself caught between two secretive underworld organizations and is given a crucial mission to infiltrate the Devon family, a wealthy and powerful elite family. Unbeknownst to the public, the Devons are actually in charge of the Shadow organization, a dangerous Mafia group that operates underground. Alyssa's mission is to pose as the perfect daughter-in-law of the Devons to gain access to their secrets. However, things take an unexpected turn when she becomes involved with the youngest heir instead of the intended target, the leader of the organization.

In the vibrant futuristic city (2243), Where magic, vampires, shapeshifters, and humans coexist... Follow Raven, who grew up in an orphanage. She is now a powerful Shaman and owner of the exclusive club "Illusions," as she finds herself drawn to Kieran, the playboy billionaire son of the debonair Vampire King Niklaus De'Lacroix But as their passion ignites, questions arise about whether Kieran is truly her mate, or if their love is doomed by fate when Shade Marcus, a malevolent demon, Who has an unquenchable sexual obsession with Raven Tragedy strikes when Lyra, Kieran's sister and a cunning vampire, falls victim to Shade Marcus's cruel vengeance, poisoned by a Satanic hex that slowly

When war orphan Alexei Volkov flees Russia to Belgium, survival means stealing scraps until a mob nearly burns him alive. Rescued by Lucien Devereux, the ruthless Capo of Brussels’ underworld, Alexei is thrust into a world of blood, secrets, and power. Trained as an assassin and spy, he becomes indispensable—until a mystical ring from his uncle in India makes every man who sees him fall hopelessly in love. Soon, the Capo, the Mayor, the Police Inspector, and even the Governor crave for him. Is it love or a curse? And in a city drowning in obsession, who will Alexei choose?

#DarkRomance #PossessiveML #SecretAgent #CrossDressing #LoveTriangle #CEO/ Hyunshin, a cross-dressing secret agent, has crawled through the mud of the underworld just to survive. But the moment her identity is exposed, she is captured by two powerful men ruling from the absolute top of wealth and power. One is a ruthless ruler burning with madness and possessive desire to claim her. The other is another breathtakingly beautiful villain, holding her hand in a dangerous game of deception. Beneath the shadows of espionage, a thrilling, high-stakes love triangle ignites with raw obsession and jealousy. In this unforgiving war of hearts, she is about to be consumed by their maddening love.

*TWIN TORMENTORS BOOK 2* After suffering and being tortured both mentally and physically by her obsessed childhood friends who turned out to be the mafia lords, Leigh-Ari Montreal finds her dragged deeper into the underworld rivalry with none but the twins’ longtime foe, who is much more retarded and ruthless than the twins combined. Living a new fabricated life with a new identity provided by her captor, she is bound to do whatever he demands, and that the fate of everyone from her ‘other life’ depends all on her action.

Arka Mahendra, a former Special Forces General, returned to the city carrying wounds and a buried past. To save the only family he had left, he accepted a contract to become the personal bodyguard of the most powerful woman in Mahatara City. What no one knew was that the man they hired for protection was the storm itself. As hidden forces began to emerge, enemies from the corporate world and the underworld started moving in the shadows. Bound by a two-year contract, Arka Mahendra was forced to make a choice, remain a weapon for hire, or once again become the ruler of the battlefield feared by all.

When her village is destroyed by corrupted magic, she’s offered protection under one condition: marry Lucan Rhyst , the cold, enigmatic Alpha of the Emberfall Pack. Alina, is an orphaned healer with dormant magical blood. She is forced to marry the cold and ruthless Alpha of the Emberfall Pack and everything within her rebels. Especially because her heart already belongs to someone else—a forbidden someone. But when she learns she is a vessel for a long-lost magic that could tear down the veil between the two worlds, the lines between hate and desire blur. Lucan, Alpha by blood but cursed by prophecy, rejected his mate years ago to protect her from the darkness clawing at his soul. B